bugtraq - RE: [ok] RE: Unchecked buffer in mstask.dll

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date: Fri, 16 Jul 2004 14:29:27 -0500
From: "Curt Purdy" <purdy@...man.com>
To: <bugtraq@...urityfocus.com>, <full-disclosure@...ts.netsys.com>,
   <tlarholm@...x.com>, <brett.moore@...urity-assessment.com>
Subject: RE: [ok] RE: Unchecked buffer in mstask.dll


Dmitry Yu wrote:
> > Being curious, on Win2k, I copied cmd.exe (from
> winnt\system32) as xyz.pif;
> > then (right-click) Properties, Program crashes explorer. Is
> this related to
> > IconHandler, and is it exploitable?
>
> 	Disassembly window shows that there was an attempt to read dword
> at [EAX] (EAX=0).  So at first glance this doesn't seem to be
> trivially
> exploitable, but I'm not a win32 expert, and intuition
> suggests that there
> must be a way.

One possible exploit is to simply place the file on your desktop.
explorer.exe goes to 100% cpu.

Curt Purdy CISSP, GSEC, MCSE+I, CNE, CCDA
Information Security Engineer
DP Solutions

----------------------------------------

If you spend more on coffee than on IT security, you will be hacked.
What's more, you deserve to be hacked.
-- former White House cybersecurity adviser Richard Clarke

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html