Microsoft Security Response Center

Advance Notification Service for the May 2013 Security Bulletin Release

Thursday, May 09, 2013

Today we’re providing Advance Notification of 10 bulletins for release on Tuesday, May 14, 2013. This release brings two Critical and eight Important-class bulletins, which address 33 unique vulnerabilities. The Critical-rated bulletins address issues in Microsoft Windows and Internet Explorer. Of note, we are working to have the Internet Explorer Security Update address the issue described in Security Advisory 2847140, supplementing the currently available Fix it.

EMET 4.0's Certificate Trust Feature

Wednesday, May 08, 2013

Three weeks ago, we released a beta version of EMET 4.0 to get feedback on the new EMET features and to get more real-world testing before the official release. We have been amazed and so grateful for the thousands of downloads and hundreds of emails with feature suggestions, bug reports, questions about the new features, and kind words cheering us on.

Fix it for Security Advisory 2847140 is available

Wednesday, May 08, 2013

We have updated Security Advisory 2847140 to include an easy, one-click Fix it to address the known attack vectors. The Fix it is available to all customers and helps prevent known attacks that leverage the vulnerability to execute code and should not affect your ability to browse the Web. Additionally, applying the Fix it does not require a reboot.

Microsoft "Fix it" available to mitigate Internet Explorer 8 vulnerability

Wednesday, May 08, 2013

Today, we are making available a “Microsoft Fix it” solution to block attacks leveraging the Internet Explorer 8 (IE8) vulnerability described in Security Advisory 2847140. This code-signed, easily downloadable and install-able Fix it package uses the Windows application compatibility toolkit to make a small change at runtime to mshtml.dll every time IE is loaded.

Microsoft Releases Security Advisory 2847140

Friday, May 03, 2013

Today, we released Security Advisory 2847140 regarding an issue that impacts Internet Explorer 8. Internet Explorer 6, 7, 9 and 10 are not affected by the vulnerability. This issue allows remote code execution if users browse to a malicious website with an affected browser. This would typically occur by an attacker convincing someone to click a link in an email or instant message.

Defending Websites from XSS attacks with ModSecurity 2.7.3 and OWASP Core Rule Set 2.2.7

Sunday, April 28, 2013

Even though cross-site scripting vulnerabilities have a 15-year history, they remain a big problem in the web security space. According to our research, there are hundreds of new issues discovered each month, and at least a few of them are being used in high-severity attacks. The general problem of cross-site scripting has no easy solution.

New update available for MS13-036

Tuesday, April 23, 2013

Portuguese (Brazil), Русский Today we released a new update to replace KB2823324, which was originally made available through MS13-036. As we previously discussed, we stopped distributing this update when we learned some customers were having issues. The new update, KB2840149, still addresses the Moderate security issue described in MS13-036, and should not cause these issues.

Introducing EMET v4 Beta

Thursday, April 18, 2013

Great news! Today we are proud to announce a beta release of the next version of the Enhanced Mitigation Experience Toolkit (EMET) – EMET 4.0. Download it here: http://www.microsoft.com/en-us/download/details.aspx?id=38761 EMET is a free utility that helps prevent memory corruption vulnerabilities in software from being successfully exploited for code execution. It does so by opt-ing in software to the latest security mitigation techniques.

April 2013 Security Bulletin Webcast, Q&A, and Slide Deck

Tuesday, April 16, 2013

Today we’re publishing the April 2013 Security Bulletin Webcast Questions & Answers page. We fielded nine questions during the webcast, with almost half of those focused on the Remote Desktop Client bulletin (MS13-024). One question that was not answered on air has been included on the Q&A page. We invite our customers to join us for the next public webcast on Wednesday, May 15, 2013, at 11 a.

KB2839011 Released to Address Security Bulletin Update Issue

Thursday, April 11, 2013

Portuguese (Brazil), Русский We are aware that some of our customers may be experiencing difficulties after applying security update 2823324, which we provided in security bulletin MS13-036 on Tuesday, April 9. We’ve determined that the update, when paired with certain third-party software, can cause system errors. As a precaution, we stopped pushing 2823324 as an update when we began investigating the error reports, and have since removed it from the download center.

Microsoft Security Response Center Blog