Tuesday, July 12, 2011
The single Critical vulnerability in today’s batch of security updates addresses an issue in the Bluetooth stack. Your workstations’ risk to this vulnerability varies, depending on a number of factors. I’d like to use this blog post to outline those risk factors. How can I protect my system? The best way to protect any potentially vulnerable system is to apply the MS11-053 security update.
Wednesday, May 18, 2011
Today we are pleased to announce a new version of the Enhanced Mitigation Experience Toolkit (EMET) with brand new features and mitigations. Users can click here to download the tool free of charge. The Enhanced Mitigation Experience Toolkit enables and implements different techniques to make successful attacks on your system more difficult.
Tuesday, April 12, 2011
Today we released 17 security bulletins. Nine have a maximum severity rating of Critical and eight 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 MS11-018(IE) Victim browses to a malicious webpage.
Tuesday, February 08, 2011
Today we released twelve security bulletins. Three have a maximum severity rating of Critical and nine have a maximum severity rating of Important. This release addresses three publicly disclosed vulnerabilities. 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 Likely first 30 days impact Platform mitigations and key notes MS11-003(IE) Victim browses to a malicious webpage.
Tuesday, February 08, 2011
Today we released MS11-004 to address a vulnerability in the Microsoft FTP service an optional component of Internet Information Services (IIS). In this blog, we would like to cover some additional technical details of this vulnerability. First, we want to clarify that the vulnerability lies in the FTP service component of IIS.
Friday, January 07, 2011
At Microsoft, as at most large software vendors, we are likely to have publicly known issues under investigation at any given time. This is what we do on the Security Research & Defense team. Recently we’ve seen confusion from folks trying to make sense of some of the current public issues.
Wednesday, December 22, 2010
Today we released Security Advisory 2488013 to notify customers of a new publicly-disclosed vulnerability in Internet Explorer (IE). This vulnerability affects all versions of IE. Exploiting this vulnerability could lead to unauthorized remote code execution inside the iexplore.exe process. Proof-of-concept exploit bypasses ASLR and DEP The Metasploit project recently published an exploit for this vulnerability using a known technique to evade ASLR (Address Space Layout Randomization) and bypass DEP (Data Execution Prevention).
Wednesday, December 08, 2010
DEP (Data Execution Prevention) and ASLR (Address Space Layout Randomization) have proven themselves to be important and effective countermeasures against the types of exploits that we see in the wild today. Of course, any useful mitigation technology will attract scrutiny, and over the past year there has been an increasing amount of research and discussion on the subject of bypassing DEP and ASLR [1,2].
Thursday, November 04, 2010
Handle: Cluster IRL: Maarten Van Horenbeeck Rank: Senior Program Manager Likes: Slicing covert channels, foraging in remote memory pools, and setting off page faults Dislikes: The crackling sound of crypto breaking, warm vodka martni “We want to remain what we are” (“Mir wëlle bleiwe wat mir sinn”) is the national motto of the Grand Duchy of Luxembourg.
Wednesday, November 03, 2010
Today we released Security Advisory 2458511notifying customers of limited attacks leveraging an Internet Explorer vulnerability. The beta version of Internet Explorer 9 is not affected while Internet Explorer 6, 7, and 8 are affected. So far the attacks we have seen only target Internet Explorer versions 6 and 7 on Windows XP.
