From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Apr 13 2007 - 09:02:08 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

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

Secunia customers receive relevant and filtered advisories.
Delivery is done via different channels including SMS, Email, Web,
and https based XML feed.
http://corporate.secunia.com/trial/38/request/

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

TITLE:
Chatness Security Bypass and PHP Code Execution

SECUNIA ADVISORY ID:
SA24873

VERIFY ADVISORY:
http://secunia.com/advisories/24873/

CRITICAL:
Highly critical

IMPACT:
Security Bypass, System access

WHERE:
From remote

SOFTWARE:
Chatness 2.x
http://secunia.com/product/4865/

DESCRIPTION:
Gammarays has discovered two vulnerabilities in Chatness, which can
be exploited by malicious people to bypass certain security
restrictions and by malicious users to compromise a vulnerable
system.

1) The vulnerability is caused due to improper authentication
verification in admin/options.php. This can be exploited to retrieve
the administrator username and password.

2) Input passed to the "html" parameter in admin/save.php is not
properly sanitised before it is written to head.html or foot.html.
Both files are included in index.php, which can be exploited to
execute arbitrary PHP code.

Successful exploitation requires valid administrator credentials (see
vulnerability #1).

The vulnerabilities are confirmed in version 2.5.3. Other versions
may also be affected.

SOLUTION:
Restrict access to the "admin/options.php" script (e.g. with
".htaccess").

Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Gammarays

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/3725

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

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/

Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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

Unsubscribe: Secunia Security Advisories

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

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]