Check Point Advisories

Citrix Provisioning Services streamprocess.exe Integer Underflow

Vulnerability
Protection

Check Point Reference:	CPAI-2012-185
Date Published:	14 May 2012
Severity:	Critical
Last Updated:	Friday 22 November, 2024
Source:
Protection Provided by:	Security Gateway R75
Who is Vulnerable?	Citrix Systems Provisioning Services 5.6 SP1 and prior
Vulnerability Description	A remote code execution vulnerability has been reported in Citrix Provisioning Services.
Vulnerability Details	The vulnerability is due to an integer underflow when copying a string into a stack buffer while handling a number of different opcodes. A remote attacker can exploit this issue by sending a malicious packet to the target service. Successful exploitation would allow an attacker to execute arbitrary code on the target machine, in the security context of the target service.

Protection Overview

This protection will detect and block attempts to transfer a malicious packet.

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

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Citrix Provisioning Services streamprocess.exe Integer Underflow protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: Citrix ICA Protection Violation
Attack Information: Citrix Provisioning Services streamprocess.exe Integer Underflow