full-disclosure - Re: WinXP IE .HLP file 0day

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Message-ID: <d4c9ac821002261004v718e7610u3a6dec93be11b607@mail.gmail.com>
Date: Fri, 26 Feb 2010 19:04:15 +0100
From: Maurycy Prodeus <mailing-list@...c.pl>
To: Peter Ferrie <peter.ferrie@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: WinXP IE .HLP file 0day

> There are loads of known vulns in winhlp32.exe, particularly in the
> decompression routines.  That's why it was removed from Vista, and why
> .hlp files are considered to be dangerous file formats.

.HLP == executable

According to http://en.wikipedia.org/wiki/WinHelp :
"A rather security critical feature is that one can also include a DLL
file containing custom code and associating it with WinHelp topics.
Effectively this makes .HLP files equivalent to executables."

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