Dailydave mailing list archives

Re: quick notes


From: <oded.horovitz () hushmail com>
Date: Mon, 30 Aug 2004 11:15:57 -0700

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On Fri, 27 Aug 2004 11:40:08 -0700 H D Moore <hdm-daily-dave () digitaloffense net>
wrote:
On Friday 27 August 2004 13:27, Dave Aitel wrote:
In addition to having the NSS heap overflow working against Windows
XP
SP2 (just to say that it can be done, not that people are running
SunONE on Windows),
Working on XP SP2 here as well. Using a request of 1024 bytes (256
* ret)
I was able to hit a "call [edx+0x44]" where edx is controllable.
....
The tricky part of this exploit is determining a static address
to use for
the value of edx. This register needs to point to a pointer of your

shellcode. It is possible to load arbitrary amounts of data into
the heap
of the remote process through GET requests with a Content-Length
set.


You have the best setup for lookaside basing. Just load a controllable

lengthed input to some lookaside entry. and set edx to that entry-0x44

Dave, are you using this vector to gain eip, or have you found another
way
that is easier/more reliable?

Did you Dave? :)

Oded H.
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