Check Point Advisories

SAP GUI regsvr32.exe Rule Security Policy Bypass (CVE-2017-6950)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0347
Date Published:	8 May 2017
Severity:	High
Last Updated:	Sunday 31 October, 2021
Source:	SAP
Industry Reference:	CVE-2017-6950
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	SAP GUI 7.2 - 7.5
Vulnerability Description	A security policy bypass vulnerability has been reported in SAP GUI. The vulnerability is due to improper implementation of client side security policies regarding the Windows application regsvr32.exe. A remote attacker could exploit this vulnerability by enticing an user to connect to a malicious SAP server.

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 SAP GUI regsvr32.exe Rule Security Policy Bypass 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: SAP GUI regsvr32.exe Rule Security Policy Bypass