Check Point Advisories

Unitronics VisiLogic OPLC TeeChart ActiveX RemoveSeries Out of Bounds Array Indexing (CVE-2015-6478)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0130
Date Published:	22 Feb 2016
Severity:	Medium
Last Updated:	Tuesday 23 February, 2016
Source:	Unitronics
Industry Reference:	CVE-2015-6478
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Unitronics VisiLogic OPLC prior to V9.8.00
Vulnerability Description	An out of bounds array indexing vulnerability exists in Unitronics VisiLogic OPLC. The vulnerability is due to use of user supplied value to calculate array index in the RemoveSeries method of the TeeChart.TChart ActiveX control. A remote attacker could exploit this vulnerability by enticing a vulnerable user to open a crafted web page. Successful exploitation could lead to code execution in the context of the target 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 Unitronics VisiLogic OPLC TeeChart ActiveX RemoveSeries Out of Bounds Array Indexing 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: Unitronics VisiLogic OPLC TeeChart ActiveX RemoveSeries Out of Bounds Array Indexing