Check Point Advisories

Advantech WebAccess SCADA webvact.ocx GotoCmd Buffer Overflow (CVE-2014-0765)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1635
Date Published:	16 Jul 2014
Severity:	Medium
Last Updated:	Monday 23 June, 2014
Source:	CVE-2014-0765
Protection Provided by:	Security Gateway R77 R76 R75
Who is Vulnerable?	Advantech WebAccess prior to 7.2
Vulnerability Description	A stack buffer overflow has been reported in Advantech's WebAccess SCADA software. This vulnerability is due to insufficient input validation on the GotoCmd parameter of the webvact.ocx ActiveX control, a part of the WebAccess Client. A remote, unauthenticated attacker could exploit this vulnerability by enticing a vulnerable user to open a crafted web page.

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, Protection tab and select the version of your choice.

Security Gateway R77 / R76 / R75 / R71 / R70

In the IPS tab, click Protections and find the Advantech WebAccess SCADA webvact.ocx GotoCmd Buffer Overflow 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:  SCADA Protection Violation.
Attack Information:  Advantech WebAccess SCADA webvact.ocx GotoCmd Buffer Overflow