├── src ├── vuln └── 2.32-0ubuntu3.2_amd64 │ ├── ld-2.32.so │ ├── libc.so.6 │ ├── libdl.so.2 │ ├── libm.so.6 │ ├── librt.so.1 │ ├── libanl.so.1 │ ├── libc-2.32.so │ ├── libm-2.32.so │ ├── libmvec.so.1 │ ├── libnsl.so.1 │ ├── libutil.so.1 │ ├── libSegFault.so │ ├── libanl-2.32.so │ ├── libdl-2.32.so │ ├── libmemusage.so │ ├── libmvec-2.32.so │ ├── libnsl-2.32.so │ ├── libnss_dns.so.2 │ ├── libpcprofile.so │ ├── libpthread.so.0 │ ├── libresolv.so.2 │ ├── librt-2.32.so │ ├── libutil-2.32.so │ ├── .debug │ ├── ld-2.32.so │ ├── libc-2.32.so │ ├── libdl-2.32.so │ ├── libm-2.32.so │ ├── librt-2.32.so │ ├── libSegFault.so │ ├── libanl-2.32.so │ ├── libmemusage.so │ ├── libmvec-2.32.so │ ├── libnsl-2.32.so │ ├── libpcprofile.so │ ├── libutil-2.32.so │ ├── libnss_dns-2.32.so │ ├── libresolv-2.32.so │ ├── libnss_files-2.32.so │ ├── libthread_db-1.0.so │ ├── libBrokenLocale-2.32.so │ ├── libnss_compat-2.32.so │ ├── libnss_hesiod-2.32.so │ └── x86_64-linux-gnu │ │ ├── ld-2.32.so │ │ ├── libc-2.32.so │ │ ├── libdl-2.32.so │ │ ├── libm-2.32.so │ │ ├── librt-2.32.so │ │ ├── libSegFault.so │ │ ├── libanl-2.32.so │ │ ├── libmemusage.so │ │ ├── libmvec-2.32.so │ │ ├── libnsl-2.32.so │ │ ├── libpcprofile.so │ │ ├── libutil-2.32.so │ │ ├── libnss_dns-2.32.so │ │ ├── libresolv-2.32.so │ │ ├── libnss_compat-2.32.so │ │ ├── libnss_files-2.32.so │ │ ├── libnss_hesiod-2.32.so │ │ ├── libthread_db-1.0.so │ │ └── libBrokenLocale-2.32.so │ ├── libnss_files.so.2 │ ├── libresolv-2.32.so │ ├── libthread_db.so.1 │ ├── ld-linux-x86-64.so.2 │ ├── libBrokenLocale.so.1 │ ├── libnss_compat.so.2 │ ├── libnss_dns-2.32.so │ ├── libnss_files-2.32.so │ ├── libnss_hesiod.so.2 │ ├── libpthread-2.32.so │ ├── libthread_db-1.0.so │ ├── libnss_compat-2.32.so │ ├── libnss_hesiod-2.32.so │ └── libBrokenLocale-2.32.so ├── service ├── docker-entrypoint.sh └── ctf.xinetd ├── docker └── docker-compose.yml ├── README.md ├── Dockerfile └── .github └── workflows └── docker-image.yml /src/vuln: 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services: 3 | test: 4 | image: test 5 | # build: ../ 6 | environment: 7 | FLAG: "flag{a63b4d37-7681-4850-b6a7-0d7109febb19}" 8 | ports: 9 | - 9999:9999 10 | restart: unless-stopped -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # 2022 HGAME WEEK3 safe_note 2 | 3 | > 由于ubuntu仓库已经移除了libc-2.32的包，附件中的libc包括了调试符号 4 | 5 | 本项目使用动态flag，请使用`$FLAG`环境变量传入flag数据（如`CTFd`），题目环境位于`9999`端口 6 | 7 | docker镜像发布于DockerHub：`randark/2023-hgame-week3-pwn-safe_note:master` 8 | 9 | 源码储存于Github：https://github.com/CTF-Archives/2023-hgame-week3-pwn-safe_note -------------------------------------------------------------------------------- /service/ctf.xinetd: -------------------------------------------------------------------------------- 1 | service ctf 2 | { 3 | disable = no 4 | socket_type = stream 5 | protocol = tcp 6 | wait = no 7 | user = root 8 | type = UNLISTED 9 | port = 9999 10 | bind = 0.0.0.0 11 | server = /usr/sbin/chroot 12 | # replace helloworld to your program 13 | server_args = --userspec=1000:1000 /home/ctf ./vuln 14 | banner_fail = /etc/banner_fail 15 | # safety options 16 | per_source = 10 # the maximum instances of this service per source IP address 17 | rlimit_cpu = 20 # the maximum number of CPU seconds that the service may use 18 | #rlimit_as = 1024M # the Address Space resource limit for the service 19 | #access_times = 2:00-9:00 12:00-24:00 20 | } 21 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM ubuntu:20.04 2 | 3 | # 制作者信息 4 | LABEL auther_template="Randark_JMT" 5 | 6 | # apt更新，并安装相关依赖 7 | RUN sed -i "s/http:\/\/archive.ubuntu.com/http:\/\/mirrors.tuna.tsinghua.edu.cn/g" /etc/apt/sources.list && \ 8 | apt-get update && apt-get -y dist-upgrade && \ 9 | apt-get update && apt-get install -y lib32z1 xinetd wget netcat curl lsof systemctl supervisor 10 | 11 | # 新建用户，并进行权限限制 12 | RUN useradd -m ctf 13 | WORKDIR /home/ctf 14 | 15 | # 复制相关glibc，并处理环境 16 | RUN cp -R /usr/lib* /home/ctf 17 | 18 | RUN mkdir /home/ctf/dev && \ 19 | mknod /home/ctf/dev/null c 1 3 && \ 20 | mknod /home/ctf/dev/zero c 1 5 && \ 21 | mknod /home/ctf/dev/random c 1 8 && \ 22 | mknod /home/ctf/dev/urandom c 1 9 && \ 23 | chmod 666 /home/ctf/dev/* 24 | 25 | RUN mkdir /home/ctf/bin && \ 26 | cp /bin/sh /home/ctf/bin && \ 27 | cp /bin/ls /home/ctf/bin && \ 28 | cp /bin/cat /home/ctf/bin 29 | 30 | #remove not have 31 | RUN rm -rf /home/ctf/lib/apt /home/ctf/lib/cpp /home/ctf/lib/gnupg /home/ctf/lib/init /home/ctf/lib/lsb /home/ctf/lib/os-release /home/ctf/lib/rsyslog /home/ctf/lib/tc /home/ctf/lib/udev /home/ctf/lib/binfmt.d /home/ctf/lib/dpkg /home/ctf/lib/gold-ld /home/ctf/lib/initramfs-tools /home/ctf/lib/ldscripts /home/ctf/lib/mime /home/ctf/lib/python2.7 /home/ctf/lib/systemd /home/ctf/lib/terminfo /home/ctf/lib/compat-ld /home/ctf/lib/gcc /home/ctf/lib/ifupdown /home/ctf/lib/insserv /home/ctf/lib/locale /home/ctf/lib/modules-load.d /home/ctf/lib/python3 /home/ctf/lib/tar /home/ctf/lib/tmpfiles.d 32 | 33 | # 部署xinetd服务 34 | COPY ./service/ctf.xinetd /etc/xinetd.d/ctf 35 | RUN echo "Blocked by ctf_xinetd" > /etc/banner_fail 36 | 37 | # 复制容器启动脚本 38 | COPY ./service/docker-entrypoint.sh / 39 | RUN chmod +x /docker-entrypoint.sh 40 | 41 | # 部署程序，并初始化flag 42 | COPY ./src/ /home/ctf/ 43 | RUN mv ./2.32-0ubuntu3.2_amd64 ./lib 44 | RUN chown -R root:ctf /home/ctf && \ 45 | chmod -R 750 /home/ctf && \ 46 | touch /home/ctf/flag && \ 47 | chmod 777 /home/ctf/flag 48 | 49 | EXPOSE 9999 50 | ENTRYPOINT ["/bin/bash","/docker-entrypoint.sh"] 51 | 52 | -------------------------------------------------------------------------------- /.github/workflows/docker-image.yml: -------------------------------------------------------------------------------- 1 | name: Publish Docker image 2 | 3 | on: 4 | push: 5 | branches: [ "master" ] 6 | 7 | env: 8 | REGISTRY_GITHUB: ghcr.io 9 | REGISTRY_DOCKERHUB: randark 10 | IMAGE_NAME_GITHUB: ${{ github.repository }} 11 | 12 | jobs: 13 | push_to_registries: 14 | name: Push Docker image to multiple registries 15 | runs-on: ubuntu-latest 16 | permissions: 17 | contents: read 18 | packages: write 19 | 20 | steps: 21 | 22 | - name: Check out the repo 23 | uses: actions/checkout@v3 24 | 25 | - name: Log in to Docker Hub 26 | uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9 27 | with: 28 | username: ${{ secrets.DOCKER_USERNAME }} 29 | password: ${{ secrets.DOCKER_PASSWORD }} 30 | 31 | - name: Log into registry ${{ env.REGISTRY_GITHUB }} 32 | if: github.event_name != 'pull_request' 33 | uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c 34 | with: 35 | registry: ${{ env.REGISTRY_GITHUB }} 36 | username: ${{ github.actor }} 37 | password: ${{ secrets.GITHUB_TOKEN }} 38 | 39 | - name: Get repository name 40 | id: repo-name 41 | uses: MariachiBear/get-repo-name-action@v1.1.0 42 | with: 43 | string-case: lowercase 44 | 45 | - name: Extract metadata (tags, labels) for Docker 46 | id: meta 47 | uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38 48 | with: 49 | images: | 50 | ${{ env.REGISTRY_DOCKERHUB }}/${{ steps.repo-name.outputs.repository-name }} 51 | ${{ env.REGISTRY_GITHUB }}/${{ env.IMAGE_NAME_GITHUB }} 52 | 53 | - name: Build and push Docker images 54 | uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc 55 | with: 56 | context: . 57 | push: true 58 | tags: ${{ steps.meta.outputs.tags }} 59 | labels: ${{ steps.meta.outputs.labels }} 60 | 61 | - name: Docker Hub Description 62 | uses: peter-evans/dockerhub-description@v3 63 | with: 64 | username: ${{ secrets.DOCKER_USERNAME }} 65 | password: ${{ secrets.DOCKER_PASSWORD }} 66 | repository: ${{ env.REGISTRY_DOCKERHUB }}/${{ steps.repo-name.outputs.repository-name }} 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