Drupal Signwriter Module Arbitrary Command Execution Vulnerability

Bugtraq ID:	38071
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Feb 03 2010 12:00AM
Updated:	Feb 03 2010 12:00AM
Credit:	Martin Barbella
Vulnerable:	Drupal Signwriter 6.x-2.0-beta1 Drupal Signwriter 5.x-1.5
Not Vulnerable:	Drupal Signwriter 6.x-2.0-beta2 Drupal Signwriter 5.x-1.6

Drupal Signwriter Module Arbitrary Command Execution Vulnerability

The Signwriter module for Drupal is prone to a vulnerability that lets attackers execute arbitrary commands because it fails to properly sanitize user-supplied input.

Arbitrary commands will run in the context of the webserver.

Versions prior to Signwriter 5.x-1.6 and 6.x-2.0-beta2 are vulnerable.

Drupal Signwriter Module Arbitrary Command Execution Vulnerability

Attackers can use readily available tools to exploit this issue.

Drupal Signwriter Module Arbitrary Command Execution Vulnerability

Solution:
Updates are available. Please see the references for details.


Drupal Signwriter 5.x-1.5

• Drupal signwriter-5.x-1.6.tar.gz
  http://ftp.drupal.org/files/projects/signwriter-5.x-1.6.tar.gz

Drupal Signwriter 6.x-2.0-beta1

• Drupal signwriter-6.x-2.0-beta2.tar.gz
  http://ftp.drupal.org/files/projects/signwriter-6.x-2.0-beta2.tar.gz

Drupal Signwriter Module Arbitrary Command Execution Vulnerability

References:

• Signwriter Homepage (Drupal)
  
• SA-CONTRIB-2010-015 - Signwriter - Arbitrary code execution (Drupal)