[UNIX] Multiple Extensions Vulnerability in phpBB Attachment Mod
From: SecuriTeam (support_at_securiteam.com)
To: email@example.com Date: 28 Dec 2004 16:45:44 +0200
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Multiple Extensions Vulnerability in phpBB Attachment Mod
The <http://www.opentools.de/> phpBB Attachment Mod is a "file upload
module for phpBB". However, an input validation flaw in phpBB's Attachment
Mod allows a malicious attackers to run arbitrary commands with the
privileges of the HTTPD process, which is typically run as the nobody
* phpBB's Attachment Mod version 2.3.10 and prior
* phpBB's Attachment Mod version 2.3.11 or newer
phpBB's Attachment Mod doesn't implemented any type of check for multiple
extensions of uploaded files, e.g. attack.php.rar. Therefore, malicious
attackers can upload arbitrary script files (PHP, pl, CGI, etc) to a web
server. This is vulnerability is caused by Apache's MIME module
(mod_mime), which regards attack.php.rar as a normal PHP file and execute
the file through mod_php module with the privilege of the HTTPD process.
2004-12-08 Vulnerability found
2004-12-08 Attachment Mod developer notified
2004-12-13 Update version released
2004-12-15 Official release
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