Check Point Advisories

OpenSSL CMS Structure OriginatorInfo Memory Corruption (CVE-2010-0742)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-354
Date Published:	1 Aug 2010
Severity:	High
Last Updated:	Tuesday 17 January, 2012
Source:
Industry Reference:	CVE-2010-0742
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	OpenSSL is an open-source library that implements Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocol functionality. OpenSSL contains an implementation of CMS. A memory corruption vulnerability has been reported in OpenSSL library. The vulnerability is due to an error in handling CMS (Cryptographic Message Syntax) structures. If a CMS structure contains a crafted 'OriginatorInfo' value, the vulnerable code could write to an invalid memory location or cause a double-free. A remote attacker could exploit this issue by sending a specially crafted CMS message to the target application using the vulnerable version of the OpenSSL library. Successful exploitation may allow for arbitrary code execution with the privileges of the application using the OpenSSL library.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

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

In the IPS tab, click Protections and find the OpenSSL CMS Structure OriginatorInfo Memory Corruption 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: OpenSSL Enforcement Violation.
Attack Information: OpenSSL CMS structure OriginatorInfo memory corruption