full-disclosure - Re: McAfee Virus Scan for Linux and Unix v5.10.0 Local Buffer Overflow

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Date: Wed, 15 Aug 2007 18:53:18 +0200
From: monikerd <monikerd@...il.com>
To: joey.mengele@...hmail.com
Cc: sebastian@...fgarten.com, full-disclosure@...ts.grok.org.uk,
	bugtraq@...urityfocus.com
Subject: Re: McAfee Virus Scan for Linux and Unix v5.10.0
 Local Buffer Overflow

Joey Mengele wrote:
> Where does security come into play here? This is a local crash in a 
> non setuid binary. I would like to hear your remote exploitation 
> scenario. Or perhaps your local privilege escalation scenario?
>
> J
>
>   
I'll play advocate of the devil then. Imagine a wiki running on a webserver,

that allows anybody to create new topics which end up in
/articles/[Topic].txt
with sufficient .htaccess stuff in /articles to twart most usual attacks ..

If you could create an arbitrary long topic, then you *might*
be able to execute some code, when some cronjob would scan the drive
and come across the file?

creating files is a different privilege than  running code. Hence imho
it's not a bogus advisory.

another possibility would be to create an archive that extracts an
incredibly
long filename perhaps? scanning an archive before/after it's extracted
is a pretty common event i guess.

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