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[IP] more on compromised ad servers?





Begin forwarded message:

From: Chris Beck <cbeck@xxxxxxxxxxxxxx>
Date: August 26, 2005 11:20:13 AM EDT
To: djf <dave@xxxxxxxxxx>, Dan Updegrove <updegrove@xxxxxxxxxxxxxxx>
Subject: Re: [IP] more on compromised ad servers?


Rumour has it David Farber, on or about 26/08/2005 9:57 AM, forwarded:

however, is that more and more droppers are being  built into .png and
.jpg files and can be very hard to detect on networks with large flows.


Perhaps someone in the know could explain a little more about the attack vectors
themselves.  Are these things stack overflow attacks against the image
libraries? And the requisit libraries have yet to have patches released? Are systems with NX CPUs still vulnerable? Given the penchant of graphics libraries to use various extensions SSE 1/2/3, MMX, 3DNow &c - is there a class of x86
processors that aren't vulnerable?

Cheers,
Chris


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