Check Point Advisories

Microsoft Office Information Disclosure (CVE-2018-0950)

Vulnerability
Protection

Check Point Reference:	CPAI-2018-0278
Date Published:	15 Apr 2018
Severity:	High
Last Updated:	Wednesday 27 February, 2019
Source:	Microsoft CVE-2018-0950
Industry Reference:	CVE-2018-0950
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Word 2007 Service Pack 3 Microsoft Word 2010 Service Pack 2 (32-bit editions) Microsoft Word 2010 Service Pack 2 (64-bit editions) Microsoft Office 2010 Service Pack 2 (32-bit editions) Microsoft Office 2010 Service Pack 2 (64-bit editions) Microsoft Word 2013 Service Pack 1 (32-bit editions) Microsoft Word 2013 Service Pack 1 (64-bit editions) Microsoft Word 2013 RT Service Pack 1 Microsoft Word 2016 (32-bit edition) Microsoft Word 2016 (64-bit edition) Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions Microsoft Office Compatibility Pack Service Pack 3
Vulnerability Description	A vulnerability exists in RTF based emails which cause information disclosure through Outlook on Windows. The vulnerability is due to an error in the way Microsoft Office improperly discloses the contents of its memory. A remote attacker can exploit this issue by enticing a victim to open a specially crafted file.

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 R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Office Information Disclosure (CVE-2018-0950) 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: Microsoft Office Information Disclosure (CVE-2018-0950)