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IPS Signatures

Obfuscated PDF Document

 
Signature ID: 23099/0
Original Release:S457
Release:S590 (download)
Original Release Date:2009 December 17
Latest Release Date:2011 August 24
Default Enabled:False
Default Retired:True
Alarm Severity:High
Fidelity:85 

Description
This signature detects a specific type of PDF obfuscation commonly used by malicious PDF documents that attempt to trigger vulnerabilities in products that parse PDF files (such as Adobe Reader). This obfuscation would not occur in PDF files produced via normal tools.This type of obfuscation has been used by Metasploit during malicious PDF file generation.This signature is a trade off between resources and coverage, and depending on traffic makeup the IPS throughput may be affected adversely.

Recommended Filter
There are no suggested filters.

Benign Triggers
There are no known benign triggers.

IntelliShield Alerts
IntelliShield ID Headline VersionCVSS ScoreLast Published
19605Script Obfuscation in Adobe Reader and Acrobat PDF Exploits12009 December 16 16:09 GMT
19948Adobe Reader and Acrobat Arbitrary Code Execution Vulnerability39.3/7.32010 March 15 12:58 GMT
21341Adobe Reader and Acrobat CoolType.dll Remote Buffer Overflow Vulnerability49.3/7.72010 October 07 13:19 GMT

Download
To download this and other IPS update files, please go to Cisco Secure Software Download.
LEGAL DISCLAIMER
THE INFORMATION ON THIS PAGE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION CONTAINED HEREIN, OR MATERIALS LINKED FROM THE DOCUMENT, IS AT YOUR OWN RISK. INFORMATION IN THIS DOCUMENT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
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