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Security Best Practice: Protect Yourself from PDF Files Containing Malformed JBIG2 Structure Vulnerabilities

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Check Point Reference: SBP-2010-23
Date Published:
Severity:
Last Updated:
Source: IPS Research Center
Industry Reference(s): CVE-2009-0658
CVE-2009-1858
CVE-2010-1801
Protection Provided by: Security Gateway
  • R71
  • R70
Who is Vulnerable?
Apple Mac OS X 10.5.8 32bits with Preview.app 4.2 (469.5) 32bits
Apple Mac OS X 10.6.2 64bits with Preview.app 5.0.1 (503) 64bits
Apple Mac OS X 10.6.3 64bits with Preview.app 5.0.2 (504) 64bits
Adobe Systems Acrobat 9 and prior
Adobe Systems Adobe Reader 9 and prior
Adobe Acrobat Standard
Adobe Acrobat Standard Pro
Adobe Acrobat Standard Pro Extended 9.1.1 and earlier 
Vulnerability Description
Memory corruption vulnerabilities have been discovered in the way multiple products handle specially crafted PDF files that contain malformed JBIG2 structures. 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. Successful exploitation of this issue will allow execution of arbitrary code on an affected system.
Vulnerability Details
The vulnerabilities are due to the way multiple products handle malformed JBIG2 structures in PDF documents. 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, and may allow execution of arbitrary code once a malicious PDF file is loaded on a vulnerable system.

Protection Overview

This protection will detect and block PDF files that contain malformed JBIG2 structure.

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, Protection taband select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway: R70/R71

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Content Protection.
2. In the right pane, double-click the PDF Containing Malformed JBIG2 Structure protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings. 
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries: 

Attack Name: Content Protection Violation
Attack Information: PDF containing malformed JBIG2 structure