Check Point Advisories

Microsoft Internet Explorer Information Disclosure (MS15-079: CVE-2015-2423)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0931
Date Published:	11 Aug 2015
Severity:	High
Last Updated:	Thursday 22 October, 2015
Source:	Microsoft MS15-079
Industry Reference:	CVE-2015-2423
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Internet Explorer 7 Microsoft Internet Explorer 8 Microsoft Internet Explorer 9 Microsoft Internet Explorer 10 Microsoft Internet Explorer 11
Vulnerability Description	An information disclosure vulnerability has been reported in Microsoft Internet Explorer. The vulnerability is due to an error in Microsoft Internet Explorer while handling unsafe command line parameters. A remote attacker can exploit this issue by enticing a user to open a specially crafted web-page with an affected version of Internet Explorer.
Update/Patch Avaliable	Apply patches from: MS15-079

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 Microsoft Internet Explorer Information Disclosure (MS15-079: CVE-2015-2423) 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 Internet Explorer Information Disclosure (MS15-079: CVE-2015-2423)