Grabit 'NZB' File Remote Stack Buffer Overflow Vulnerability

Bugtraq ID:	34807
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	May 04 2009 12:00AM
Updated:	May 08 2009 01:06AM
Credit:	Niels Teusink
Vulnerable:	Ilan Shemes Grabit 1.7.2 beta 3 Ilan Shemes Grabit 1.7.2 beta 2 Ilan Shemes Grabit 1.7.2 beta
Not Vulnerable:	Ilan Shemes Grabit 1.7.2 beta 4

Grabit 'NZB' File Remote Stack Buffer Overflow Vulnerability

Grabit is prone to a remote stack-based buffer-overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied input.

Attackers may leverage this issue to execute arbitrary code in the context of the application. Failed attacks will cause denial-of-service conditions.

Grabit 1.7.2 beta 3 is vulnerable; other versions may also be affected.

Grabit 'NZB' File Remote Stack Buffer Overflow Vulnerability

The following exploit code is available:

• /data/vulnerabilities/exploits/34807.pl
• /data/vulnerabilities/exploits/34807-2.pl

Grabit 'NZB' File Remote Stack Buffer Overflow Vulnerability

Solution:
The vendor has released an update. Please see the references for details.


Ilan Shemes Grabit 1.7.2 beta 3

• Ilan Shemes GrabIt172b4.exe
  http://download.shemes.com/GrabIt172b4.exe

Grabit 'NZB' File Remote Stack Buffer Overflow Vulnerability

References:

• Grabit Homepage (Ilan Shemes)
  
• Grabit <= 1.7.2 beta 3 NZB file parsing stack overflow ( Niels Teusink )