Check Point Advisories

Adobe Reader Collab.removeStateModel Function Denial of Service (APSB09-15; CVE-2009-2988)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-242
Date Published:	14 Oct 2009
Severity:	High
Last Updated:	Wednesday 14 October, 2009
Source:
Industry Reference:	CVE-2009-2988
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Portable Document Format (PDF) is an open file format created by Adobe Systems. It is used for representing two-dimensional documents in a device and resolution independent fixed-layout document format. A denial of service vulnerability has been discovered in Adobe Reader and Acrobat. The vulnerability is due to the way Adobe Reader and Acrobat handle a PDF file containing a malformed 'Collab.removeStateModel' JavaScript Function. A remote attacker could trigger this issue via a specially crafted PDF file. Successful exploitation will create a denial of service condition, causing the application to become non-responsive once a malicious PDF file is loaded on a vulnerable system.

Protection Overview

This protection will detect and block attempts to transfer malformed PDF files over HTTP.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70

In the IPS tab, click Protections and find the Adobe Reader Collab.removeStateModel Function Denial of Service (APSB09-15) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Adobe Reader Violation.
Attack Information: Adobe Reader Collab.removeStateModel function denial of service (APSB09-15)