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TITLE:
Trac Arbitrary File Upload/Download Vulnerability

SECUNIA ADVISORY ID:
SA15752

VERIFY ADVISORY:
http://secunia.com/advisories/15752/

CRITICAL:
Moderately critical

IMPACT:
Manipulation of data, Exposure of sensitive information, System
access

WHERE:
>From remote

SOFTWARE:
Trac 0.x
http://secunia.com/product/5260/

DESCRIPTION:
Stefan Esser has reported a vulnerability in Trac, which can be
exploited by malicious users to disclose sensitive information and
potentially compromise a vulnerable system.

The vulnerability is caused due to an input validation error in the
"id" parameter when processing an attachment upload and download
request.  This can be exploited to retrieve any files accessible by
the web server, or to upload files to writable directories by
supplying arbitrary paths to the parameter.

The vulnerability has been reported in versions 0.8.3 and prior.

SOLUTION:
Update to version 0.8.4 or later.
http://projects.edgewall.com/trac/wiki/TracDownload

PROVIDED AND/OR DISCOVERED BY:
Stefan Esser, Hardened-PHP Project.

ORIGINAL ADVISORY:
Edgewall Software:
http://projects.edgewall.com/trac/wiki/ChangeLog

Hardened-PHP Project:
http://www.hardened-php.net/advisory-012005.php

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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.

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