Check Point Advisories

Liquid XML Studio LtXmlComHelp8.dll ActiveX OpenFile Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2010-124
Date Published:	12 May 2010
Severity:	Medium
Last Updated:	Wednesday 12 May, 2010
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Liquid Technologies develops and maintains an XML editor, Liquid XML Studio. Liquid XML is composed of an XML developers toolkit and IDE, enabling developers to design and develop XML Schema and applications. Bundled with the application is an ActiveX component that is registered on the system during installation. A stack buffer overflow vulnerability exists in Liquid XML Studio software. The flaw is caused by a boundary error while parsing arguments passed to certain function. A remote attacker may exploit this issue by enticing target users to visit a malicious web page. Successful exploitation of this vulnerability would result in a stack buffer overflow allowing for arbitrary code injection and execution with the privileges of the logged in user.

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 Liquid XML Studio LtXmlComHelp8.dll ActiveX OpenFile 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: Web Client Enforcement Violation.
Attack Information: Liquid XML Studio LtXmlComHelp8.dll ActiveX OpenFile buffer overflow