[NT] Facto System CMS Contains Multiple Vulnerabilities

From: support@securiteam.com
Date: 08/31/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Sat, 31 Aug 2002 09:15:53 +0200 (CEST)

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  Facto System CMS Contains Multiple Vulnerabilities
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SUMMARY

 <http://sourceforge.net/projects/facto> Facto is a collaborative, dynamic
Web publishing system. The system can be used for creating personal or
group 'Blog' type sites. It is written entirely in Active Server Pages
(ASP) and can use Microsoft Access or SQL Server as a database backend.
The product has been found to contain multiple security vulnerabilities
allowing a remote attacker to insert into existing SQL queries arbitrary
SQL statements.

DETAILS

Vulnerable systems:
 * IIS 4.0 or later with ASP enabled and Facto System CMS installed

Multiple SQL injection vulnerabilities exist in the Facto System Content
Management System that may allow an attacker to introduce instructions
into an SQL query. The vulnerabilities exist because the script fails to
verify the validity of numeric data and fails to properly escape certain
control characters in strings.

The problems are in the handling of the query variables "authornumber" (in
author.asp), and "discussblurbid" (in discuss.asp), and the form variables
"name" and "email" (in holdcomment.asp).
Example:
An example is below:
http://localhost/author.asp?authornumber=1%28%20And%20AuthorTable%2EAuthorID
%3DBlurbTable%2EAuthorID%20And%20BlurbTable%2ESub_id%3DSubjectTable%2E
Sub_id%20Order%20By%20BlurbTable%2EBlurbdate%20desc%2C%20blurbtable
%2Eblurbtime%20desc%3BUPDATE%20user%20SET%20Password%3DPASSWORD
%28%27password%27%29%20WHERE%20user%3D%27root%27%3B%20FLUSH
%20PRIVILEGES%3B--

ADDITIONAL INFORMATION

The information has been provided by <mailto:mattmurphy@kc.rr.com>
Matthew Murphy.

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