BeyondTrust

Security in Context: The BeyondTrust Blog

Welcome to Security in Context

Bringing you news and commentary on solutions and strategies for protecting critical IT infrastructure in the context of your business.

Microsoft Patch Tuesday – March 2011

Posted March 8, 2011    Chris Silva

Before I get started today, I want to first point out that tomorrow’s Vulnerability Expert Forum (VEF) will be at a new time – 1PM PST. Sign up to hear what Marc Maiffret and the eEye Research team have to say about today’s security bulletins and other security related topics.

For this Patch Tuesday, Microsoft released a total of three security bulletins. All three are related to the DLL preloading vulnerability first announced last August. Including today’s release, Microsoft has issued over 10 separate security bulletins related to the DLL preloading vulnerability, with probably more to come. For those who haven’t done so, it is a good idea to follow the mitigation steps outlined in KB2269637 as numerous other third-party software products are affected and unpatched.

Microsoft still has a lot of unpatched zero day vulnerabilities, so as per their recent cycle, I would anticipate a large April release.

Here are our recommendations for the three security updates. Retina Network Security Scanner customers can view the list of audits associated with these bulletins.

Deploy Immediately

MS11-015 – Vulnerabilities in Windows Media Could Allow Remote Code Execution (2510030)
Recommendation: Deploy patches immediately to prevent exploitation by attackers. Until the patches can be installed, the loading of libraries from WebDAV and remote network shares should be disabled, the WebClient Service should be disabled, TCP ports 139 and 445 should be blocked on the external firewall, and strict file permissions on the Stream Buffer Engine (i.e. sbe.dll) should be enforced. Additionally, as with all DLL Preloading vulnerabilities, disable the WebDAV client and do not open “.wtv”, “.dvr-ms”, and “.mpg” files from untrusted sources.

MS11-016 – Vulnerability in Microsoft Groove Could Allow Remote Code Execution (2494047)
Recommendation: Deploy patches immediately to prevent exploitation by attackers. Until the patches can be installed, the loading of libraries from WebDAV and remote network shares should be disabled, the WebClient Service should be disabled, and TCP ports 139 and 445 should be blocked on the external firewall. Additionally, as with all DLL Preloading vulnerabilities, disable the WebDAV client and do not open “.vcg” and “.gta” files from untrusted sources.

MS11-017 – Vulnerability in Remote Desktop Client Could Allow Remote Code Execution (2508062)
Recommendation: Deploy patches immediately to prevent exploitation by attackers. Until the patches can be installed, the loading of libraries from WebDAV and remote network shares should be disabled, the WebClient Service should be disabled, and TCP ports 139 and 445 should be blocked on the external firewall. Additionally, as with all DLL Preloading vulnerabilities, disable the WebDAV client and do not open “.rdp” files from untrusted sources.

Leave a Reply

Additional articles

pbps-customer-campaign-image

Are you changing your passwords as often as the weather changes?

Posted April 20, 2015    Scott Lang

There is one thing that should change more frequently than the weather: Your privileged passwords. Why? If you’re like more than 25% of companies out there, then your current IT environment contains unmanaged accounts putting you at risk of data breaches and compliance violations, and you don’t have a process to control those accounts.

Tags:
, , , ,
webinar1

On Demand Webinar: Advanced Windows Tracing

Posted April 17, 2015    BeyondTrust Software

Webinar: Security MVP, Paula Januszkiewicz, shows Windows administrators how to be more aware of what happens whenever somebody does something within the system.

Tags:
, ,
5

The Delicate Art of Remote Checks – A Glance Into MS15-034

Posted April 15, 2015    Bill Finlayson

Remote vulnerability detection – using ms15-034 as an example.

Tags:
, ,