Re: A Very Dangerous Worm in Windows Metafile Images (WMF)



JeffM wrote:

> A patch for NT-based systems [1]
http://66.102.7.104/search?q=cache:G_h4wrg3BDYJ:www.grc.com/sn/notes-020.htm+Download-Ilfak's-Temporary-WMF-Patch+the-seriousness-of-the-WMF-vulnerability
> .
> .
> [1] There is no patch for DOS-based Windoze.

There is a vulnerability checker at

http://www.hexblog.com/2006/01/wmf_vulnerability_checker.html#more

Several people report their results on Win98. Apparently Win98 shows as
being vulnerable, but two people running Win98SE say their system reports
not vulnerable.

I am running Win98SE with the Final Update. The test report says it is
not vulnerable. A brief look at the source indicates it may not be able
to find the entry points in the Win98SE version of gdi32.dll.

Wishful thinking says maybe the virus writers could have the same problem
with Win98SE, and anyway they will be going after w2k and xp systems.
Somehow that doesn't make me feel better.

The author emphasizes he checks only one vulnerability and there may be
more. So it is not safe to assume that Win98SE or later OS's are
invulnerable to this problem even if the temporary patch is applied.

This is a very serious problem. Watch the internet melt tomorrow when
everyone comes back from XMas vacation.

Mike Monett
.



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