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There’s been quite a few Microsoft related exploits recently, but not in Windows, people have moved their focus towards the application layer and the top of the OSI stack.
This time it was a 0-day Vulnerability in Microsoft Word.
The original news comes from SANS Internet Storm Center Diary (ISC).
Microsoft has reported Word 2003, Word 2002, Word 2000 and Word Viewer 2003 are reportedly affected.
The vulnerability is being exploited in the wild, the malicious document is called QUESTION.DOC.
Password stealing Trojan spreads with this vulnerability, link to the McAfee PWS-Agent.g writeup.
US-CERT reported today that “Word fails to properly handle malformed data structures allowing memory corruption to occur”. This vulnerability is public CVE-2006-6456 now.