Check Point Advisories

Citrix Systems Multiple Products IMA Service Buffer Overflow (CVE-2008-0356)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-401
Date Published:	13 Dec 2009
Severity:	Critical
Last Updated:	Thursday 12 November, 2015
Source:
Industry Reference:	CVE-2008-0356
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Citrix MetaFrame products are remote access and application publishing products built on Citrix' Independent Computing Architecture (ICA). The products allow for access and control of the remote hosts as well as deploying applications. There exists a buffer overflow vulnerability in Independent Management Architecture (IMA) service in Citrix products. The flaw is due to improper handling of user supplied data sent the the Citrix Presentation Server. This issue can be exploited by an unauthenticated attacker to execute arbitrary code with the privileges of Citrix Presentation Server service, which is System by default. In an attack case where code injection is not successful, the vulnerable MetaFrame Presentation Server service will terminate abnormally. In a more sophisticated attack where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of system level privileges.

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 Citrix Systems Multiple Products IMA Service Buffer Overflow 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: Citrix ICA Protection Violation.
Attack Information: Citrix Systems multiple products IMA service buffer overflow