full-disclosure - Re: DLL hijacking POC (failed, see for yourself)

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

Message-ID: <A802B819E13346EB927DA521A3194192@localhost>
Date: Tue, 14 Sep 2010 23:15:57 +0200
From: "Stefan Kanthak" <stefan.kanthak@...go.de>
To: "Christian Sciberras" <uuf6429@...il.com>,
	<full-disclosure@...ts.grok.org.uk>
Subject: Re: DLL hijacking POC (failed, see for yourself)

Christian Sciberras wrote:

> I wrote my own example POC.

and failed to use it right!

[...]

> DHPOC\example\the-install-folder\
> DHPOC\example\the-install-folder\dhpocApp.exe
> DHPOC\example\the-install-folder\dhpocDll.dll
> DHPOC\example\the-remote-folder
> DHPOC\example\the-remote-folder\example.dhpoc
> DHPOC\example\the-remote-folder\dhpocDll.dll
> 
> While testing this, I noticed that the dll hijack exploit completely
> failed my tests (on Windows 7 64bit).

No, you failed the test!
The "application directory" is ALWAYS the first one where both implicit
(referenced in the binary) as well as explicit (via LoadLibrary())
loading will search.

Next time, do your homework first!

Stefan

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/