Product : Mambo 4.5.2.2 (http://www.mamboserver.com)
Summary: Mambo 4.5.2.2 and below SQL Injection in UPDATE statement
Severity: Low

Description
===========
Mambo is a full-featured management system that can be used for everything
from simple websites to complex corporate applications.

Details
=======
We have found uncritical sql injection vulnerability in com_contents
component when user vote for the content.

-- content.php --

100 case 'vote':
101 recordVote ( $url , $user_rating , $cid ,
$database);
102 break;
...
1478 $query = "UPDATE
#__content_rating"
1479 . "\n SET rating_count =
rating_count + 1,"
1450 . "\n rating_sum = rating_sum
+ $user_rating,"
1451 . "\n lastip = '$currip'"
1452 . "\n WHERE content_id = ". $cid
1453 ;

----------------

On line 1450 $user_rating using user supplied value without any validation.
This kind of vulnerability is exploitable to gain sensitif information if
Mambo configured to using mySQL 4.1 and above.

Fix
===
Fix available from Mambo website (http://mamboforge.net/frs/?group_id=5)

Proof of concept
================
See Attachment

Vendor Response
===============
15th June 2005 - Vendor Contacted
15th June 2005 - Fix Available

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