David Schenz
schenz.9 (at) osu (dot) edu [email concealed]
-----Original Message-----
From: Michal Zalewski [mailto:lcamtuf (at) dione.ids (dot) pl [email concealed]]
Sent: Thursday, March 16, 2006 4:14 PM
To: Daniel Bonekeeper
Cc: bugtraq (at) securityfocus (dot) com [email concealed]; vulnwatch (at) vulnwatch (dot) org [email concealed];
full-disclosure (at) lists.grok.org (dot) uk [email concealed]
Subject: Re: Remote overflow in MSIE script action handlers (mshtml.dll)
On Thu, 16 Mar 2006, Daniel Bonekeeper wrote:
> BTW, tested the POC on MSIE (File Version = 6.00.2900.2180
> (xpsp_sp2_rtm.040803-2158)) with mshtml.dll (6.00.2900.2802
> (xpsp_sp2_gdr.051123-1230)) and it didn't worked.
Daniel followed up with me in private and confirmed that the PoC *did*
work for him when he followed certain additional instructions: because
the
attack depends on memory layout and usage, to get consistent results, be
sure to close *all* MSIE windows, then go to Start -> Run... and type:
iexplore http://lcamtuf.coredump.cx/iedie.html
That should crash the browser immediately, because there are no other
buffers nearby to "absorb" the initial fencepost. Still, if no dice, try
hitting 'Reload' a couple of times.
Mshtml.dll 6.0.3790.2577
Iexplore.exe 6.0.3790.1830
PoC does work.
David Schenz
schenz.9 (at) osu (dot) edu [email concealed]
-----Original Message-----
From: Michal Zalewski [mailto:lcamtuf (at) dione.ids (dot) pl [email concealed]]
Sent: Thursday, March 16, 2006 4:14 PM
To: Daniel Bonekeeper
Cc: bugtraq (at) securityfocus (dot) com [email concealed]; vulnwatch (at) vulnwatch (dot) org [email concealed];
full-disclosure (at) lists.grok.org (dot) uk [email concealed]
Subject: Re: Remote overflow in MSIE script action handlers (mshtml.dll)
On Thu, 16 Mar 2006, Daniel Bonekeeper wrote:
> BTW, tested the POC on MSIE (File Version = 6.00.2900.2180
> (xpsp_sp2_rtm.040803-2158)) with mshtml.dll (6.00.2900.2802
> (xpsp_sp2_gdr.051123-1230)) and it didn't worked.
Daniel followed up with me in private and confirmed that the PoC *did*
work for him when he followed certain additional instructions: because
the
attack depends on memory layout and usage, to get consistent results, be
sure to close *all* MSIE windows, then go to Start -> Run... and type:
iexplore http://lcamtuf.coredump.cx/iedie.html
That should crash the browser immediately, because there are no other
buffers nearby to "absorb" the initial fencepost. Still, if no dice, try
hitting 'Reload' a couple of times.
/mz
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