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

Want to work within IT-Security?

Secunia is expanding its team of highly skilled security experts.
We will help with relocation and obtaining a work permit.

Currently the following type of positions are available:
http://secunia.com/quality_assurance_analyst/
http://secunia.com/web_application_security_specialist/ 
http://secunia.com/hardcore_disassembler_and_reverse_engineer/

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

TITLE:
php download script "file" Parameter Directory Traversal

SECUNIA ADVISORY ID:
SA21774

VERIFY ADVISORY:
http://secunia.com/advisories/21774/

CRITICAL:
Moderately critical

IMPACT:
Manipulation of data

WHERE:
>From remote

SOFTWARE:
php download script
http://secunia.com/product/11865/

DESCRIPTION:
s3rv3r_hack3r has discovered a vulnerability in php download script,
which can be exploited by malicious people to manipulate sensitive
information.

Input passed to the "file" parameter in download.php isn't properly
verified, before it is used to write a counter value to a file. This
can be exploited to set the content of arbitrary files to "1" via
directory traversal attacks.

The vulnerability has been confirmed in the latest available version.
Other versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly verified.

PROVIDED AND/OR DISCOVERED BY:
s3rv3r_hack3r

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

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
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

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