Full Disclosure mailing list archives
Re[2]: Steve Gibson smokes crack?
From: blad3 <fd () blad3 ro>
Date: Sat, 14 Jan 2006 14:56:02 +0200
Hello Georgi, Saturday, January 14, 2006, 1:26:36 PM, you wrote:
On Fri, Jan 13, 2006 at 05:55:17PM -0500, eric williams wrote:however, the question is I gather flowing from the Gibson commentary, how or what exactly causes WINE to execute the code pointed at by the SetAbortProc record? Is it the "incorrect record length" is it some other munged input, is it "by design" which has also been alluded to, and seems to be your reference here.
http://www.grc.com/sn/SN-022.htm ---- So what I found was that, when I deliberately lied about the size of this record and set the size to one and no other value, and I gave this particular byte sequence that makes no sense for a metafile, then Windows created a thread and jumped into my code, began executing my code.
...
It turns out that the only way to get Windows to misbehave in this bizarre fashion is to set the length to one, which is an impossible value. I tried setting it to zero. It didn't trigger the exploit. I tried setting it to two, no effect. Three, no effect. Nothing, not even the correct length. Only one.
The claim about the length is not true. http://it.slashdot.org/comments.pl?sid=173878&cid=14466008 Btw, somebody else in this thread already proved that.
using invalid values to exploit a "design flaw" is "strange" at least. can someone comment if the claim about the length is true?
-- Best regards, blad3 mailto:fd () blad3 ro _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Steve Gibson smokes crack?, (continued)
- Re: Steve Gibson smokes crack? Jason Coombs (Jan 13)
- Re: Steve Gibson smokes crack? bkfsec (Jan 13)
- RE: Steve Gibson smokes crack William Lefkovics (Jan 13)
- Re: Steve Gibson smokes crack? eric williams (Jan 13)
- Re: Steve Gibson smokes crack? Stan Bubrouski (Jan 13)
- RE: Steve Gibson smokes crack? Peter Ferrie (Jan 13)
- Re: Steve Gibson smokes crack? eric williams (Jan 13)
- RE: Steve Gibson smokes crack? Peter Ferrie (Jan 15)
- Re: Steve Gibson smokes crack? Stan Bubrouski (Jan 13)
- Re: Steve Gibson smokes crack? Byron Sonne (Jan 14)
- Re: Steve Gibson smokes crack? eric williams (Jan 13)
- Re: Steve Gibson smokes crack? Stan Bubrouski (Jan 13)