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

Do you have VARM strategy implemented?

(Vulnerability Assessment Remediation Management)  

If not, then implement it through the most reliable vulnerability
intelligence source on the market. 

Implement it through Secunia. 

For more information visit:
http://secunia.com/advisories/business_solutions/

Alternatively request a call from a Secunia representative today to
discuss how we can help you with our capabilities contact us at:
sales@secunia.com

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

TITLE:
Microsoft IIS ASP Multiple Extensions Security Bypass

SECUNIA ADVISORY ID:
SA37831

VERIFY ADVISORY:
http://secunia.com/advisories/37831/

DESCRIPTION:
Soroush Dalili has discovered a vulnerability in Microsoft Internet
Information Services (IIS), which can be exploited by malicious
people to potentially bypass certain security restrictions and
compromise a vulnerable system.

The vulnerability is caused due to the web server incorrectly
executing e.g. ASP code included in a file having multiple extensions
separated by ";", only one internal extension being equal to ".asp"
(e.g. "file.asp;.jpg"). This can be exploited to potentially upload
and execute arbitrary ASP code via a third-party application using
file extensions to restrict uploaded file types.

The vulnerability is confirmed on a fully patched Windows Server 2003
R2 SP2 running Microsoft IIS version 6. Other versions may also be
affected.

SOLUTION:
Restrict file uploads to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Soroush Dalili

ORIGINAL ADVISORY:
http://soroush.secproject.com/downloadable/iis-semicolon-report.pdf

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

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/advisories/secunia_security_advisories/

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

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