Check Point Advisories

EMC Captiva QuickScan Pro KeyHelp ActiveX Control Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2023-1196
Date Published:	28 Nov 2023
Severity:	Medium
Last Updated:	Tuesday 28 November, 2023
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	EMC QuickScan Pro 4.6 SP1 EMC Documentum ApplicationXtender Desktop 5.4
Vulnerability Description	A stack-based buffer overflow vulnerability exists in EMC Captiva QuickScan Pro KeyHelp ActiveX control. The flaw is due to insufficient boundary checks on user-supplied input. A remote attack can exploit this vulnerability by enticing a target user to visit a maliciously crafted web page.In a successful attack, where arbitrary code is injected and executed on the vulnerable target host, the behaviour of the target system is dependent on the malicious code. Note that any code executed by the attacker runs with the privileges of the logged in user.

Protection Overview

This protection detects 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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the EMC Captiva QuickScan Pro KeyHelp ActiveX Control 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: EMC Captiva QuickScan Pro KeyHelp ActiveX Control Buffer Overflow