Check Point Advisories

Microsoft .NET Framework ASLR Security Bypass (MS15-118: CVE-2015-6115)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0005
Date Published:	4 Jan 2016
Severity:	Medium
Last Updated:	Wednesday 13 January, 2016
Source:	Microsoft MS15-118
Industry Reference:	CVE-2015-6115
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft .NET Framework 2.0 Service Pack 2 Microsoft .NET Framework 3.5 Microsoft .NET Framework 3.5.1
Vulnerability Description	A security feature bypass vulnerability exists in Microsoft .NET Framework. The vulnerability is due to a DLL file that was not compiled with Address Space Layout Randomization (ASLR) enabled. A remote attacker can exploit this vulnerability by enticing a target user to open a crafted document that would cause the processing application to load the vulnerable DLL file.
Update/Patch Avaliable	Apply patches from: MS15-118

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 .NET Framework ASLR Security Bypass (MS15-118: CVE-2015-6115) 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: Content Protection Violation.
Attack Information: Microsoft .NET Framework ASLR Security Bypass (MS15-118: CVE-2015-6115)