Critical Windows Metafile Flaw Being ExploitedBy Lisa Vaas | Posted 2005-12-29 Email Print
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Updated: Code for what Secunia is deeming an "extremely critical flaw" in Windows Metafile Format files is being exploited on fully patched systems. Avoiding attack is simple, researchers note: Don't
Microsoft Corp. has issued a security advisory for what Secunia is deeming an "extremely critical flaw" in Windows Metafile Format (.wmf) that is now being exploited on fully patched systems by malicious attackers.
Websense Security Labs is tracking thousands of sites distributing the exploit code from a site called iFrameCASH BUSINESS.
That site and numerous others are distributing spyware and other unwanted software, replacing users' desktop backgrounds with a message that warns of spyware infection and which prompts the user to enter credit card information to pay for a "spyware cleaning" application to remove the detected spyware.
Vulnerable operating systems include a slew of Windows Server 2003 editions: Datacenter Edition, Enterprise Edition, Standard Edition and Web Edition. Also at risk are Windows XP Home Edition and Windows XP Professional, making both home users and businesses open to attack.
In this fluid attack, researchers have kept up a steady stream of new details about the extent of the exploit's reach, with Google Desktop being the latest reported vector.
F-Secure reported on Wednesday that Google Desktop tries to index image files with the exploit, executing it in the process. F-Secure reports that this exploitation-via-indexing may wind up occurring with other desktop search engines as well.
Read the full story on eWEEK.com: Critical Impact: Windows Metafile Flaw a 'Zero-Day Exploit'