Check Point Advisories

Advantech WebAccess AspVCObj.AspDataDriven ActiveX GetWideStrCpy Stack Buffer Overflow (CVE-2014-9208)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-1310
Date Published:	17 Nov 2015
Severity:	High
Last Updated:	Thursday 03 December, 2015
Source:	Advantech
Industry Reference:	CVE-2014-9208
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Advantech WebAccess 8.0, 3.4.3 and prior
Vulnerability Description	A stack buffer overflow vulnerability exists in Advantech's WebAccess SCADA software. The vulnerability is due to insufficient input validation of an argument to GetWideStrCpy() in the AspVCObj.AspDataDriven ActiveX control. A remote, unauthenticated attacker can exploit this vulnerability by enticing a vulnerable user to open a crafted web page. Successful exploitation can 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 Advantech WebAccess AspVCObj.AspDataDriven ActiveX GetWideStrCpy Stack 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: Advantech WebAccess AspVCObj.AspDataDriven ActiveX GetWideStrCpy Stack Buffer Overflow