Vulnerability Note VU#933955

PHPNuke 'admin.php' script does not adequately authenticate users, thereby allowing malicious user to copy, move, or upload files

Overview

PHPNuke's "admin.php" script does not properly authenticate users of its filemanager capabilities. Attackers may exploit this vulnerability to copy, move, or upload files.

I. Description

PHPNuke is a set of PHP scripts designed to simplify website creation and maintenance. The "admin.php" script of PHPNuke includes "filemanager" capabilities allowing an administrative user to copy and move files on the server and to upload new files to the server.

However, this script does not properly verify user authentication. Therefore, any remote attacker can access the filemanager capabilities with PHPNuke administrator privileges.

II. Impact

Remote attackers can copy and move files on the server and upload new files, potentially overwriting existing files.

III. Solution

The CERT/CC is currently unaware of a practical solution to this problem.

Systems Affected

Vendor	Status	Date Notified	Date Updated
PHP-Nuke	Vulnerable	18-Sep-2002

References

http://www.securiteam.com/unixfocus/5FP0L1F5FS.html
http://www.securityfocus.com/bid/3361
http://www.twlc.net/article.php?sid=421
http://sourceforge.net/tracker/?group_id=7511

Credit

Thanks to supergate for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

Date Public:	2001-09-24
Date First Published:	2002-09-24
Date Last Updated:	2002-09-24
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	4.28
Document Revision:	9

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