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phpBB Multiple Vulnerabilities
Secunia Advisory: SA13239
Release Date: 2004-11-19
Last Update: 2005-01-03
Popularity: 72,829 views

Critical:
Highly critical
Impact: Cross Site Scripting
Manipulation of data
System access
Where: From remote
Solution Status: Vendor Patch

Software:phpBB 2.x

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CVE reference:CVE-2004-1315


Description:
Some vulnerabilities have been reported in phpBB, which can be exploited by malicious people to execute arbitrary commands, conduct SQL injection and cross-site scripting attacks.

1) The "highlight" parameter in "viewtopic.php" is not properly sanitised when it is decoded. This can be exploited to execute arbitrary commands on a vulnerable server.

2) Input passed to the username handling isn't properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site.

3) Other input passed to the username handling isn't properly sanitised before being used in a SQL query. This can potentially be exploited to manipulate SQL queries by injecting arbitrary SQL code.

The vulnerabilities have been reported in versions prior to 2.0.11.

Solution:
Update to version 2.0.11.
http://sourceforge.net/project/showfiles.php?group_id=7885

Provided and/or discovered by:
1) How Dark
2) AnthraX101
3) warmth

Changelog:
2004-11-22: Added information about impact of the first vulnerability.
2004-12-22: Added link to US-CERT vulnerability note.
2005-01-03: Added CVE reference.

Original Advisory:
http://www.phpbb.com/phpBB/viewtopic.php?f=14&t=240636

Other References:
US-CERT VU#497400:
http://www.kb.cert.org/vuls/id/497400


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