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MSRC

Month Archives: June 2012

Assessing risk for the June 2012 security updates

Tuesday, June 12, 2012

Today we released seven security bulletins. Three have a maximum severity rating of Critical and the other four have a maximum severity rating of Important. We hope that the table below helps you prioritize the deployment of the updates appropriately for your environment. Bulletin Most likely attack vector Max Bulletin Severity Max Exploit-ability Index Likely first 30 days impact Platform mitigations and key notes MS12-037(Internet Explorer) Victim browses to a malicious webpage.

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Certificate Trust List update and the June 2012 bulletins

Tuesday, June 12, 2012

For Update Tuesday we’re releasing seven security bulletins – three Critical-class and four Important – addressing 26 unique CVEs to further improve the security postures of Microsoft Windows, Internet Explorer, Dynamics AX, Microsoft Lync, and the Microsoft .NET Framework. In addition to the security bulletins, we are releasing an automatic updater feature for Windows Vista and Windows 7 untrusted certificates.

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Advance Notification Service for June 2012 Security Bulletin Release

Thursday, June 07, 2012

Hello – Today we’re releasing our advance notification for the June security bulletin release, which is scheduled for Tuesday, June 12. This month’s release includes 7 bulletins addressing 25 vulnerabilities in Microsoft Windows, Internet Explorer, Visual Basic for Applications, Dynamics AX, and the .NET Framework. All seven bulletins will be released on Tuesday at approximately 10 a.

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Flame malware collision attack explained

Wednesday, June 06, 2012

Since our last MSRC blog post, we’ve received questions on the nature of the cryptographic attack we saw in the complex, targeted malware known as Flame. This blog summarizes what our research revealed and why we made the decision to release Security Advisory 2718704 on Sunday night PDT. In short, by default the attacker’s certificate would not work on Windows Vista or more recent versions of Windows.

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Security Advisory 2718704: Collision attack details, WU update rollout

Wednesday, June 06, 2012

Today, as a part of our continuing phased mitigation strategy recently discussed, we have initiated the additional hardening of Windows Update. We’ve also provided more information about the MD5 hash-collision attacks used by the Flame malware in the SRD blog. This information should help answer questions from customers about the nature of these collision attacks.

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Security Advisory 2718704: Update to Phased Mitigation Strategy

Monday, June 04, 2012

Hello, At Microsoft, our commitment is to help ensure customer trust in their computing experience. That was the impetus for Trustworthy Computing, and central to that is the priority we place on taking the necessary actions to help protect our customers. Yesterday, we issued Security Advisory 2718704 outlining the steps we took to help protect our customers from attacks using certain unauthorized digital certificates.

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Microsoft certification authority signing certificates added to the Untrusted Certificate Store

Sunday, June 03, 2012

Today, we released Security Advisory 2718704, notifying customers that unauthorized digital certificates have been found that chain up to a Microsoft sub-certification authority issued under the Microsoft Root Authority. With this blog post, we’d like to dig into more technical aspects of this situation, potential risks to your enterprise, and actions you can take to protect yourself against any potential attacks that would leverage unauthorized certificates signed by Microsoft.

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Microsoft releases Security Advisory 2718704

Sunday, June 03, 2012

Hello, We recently became aware of a complex piece of targeted malware known as “Flame” and immediately began examining the issue. As many reports assert, Flame has been used in highly sophisticated and targeted attacks and, as a result, the vast majority of customers are not at risk. Additionally, most antivirus products will detect and remove this malware.

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