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Date: Wed, 19 May 2010 15:28:18 +0200
From: Ludwig Nussel <ludwig.nussel@...e.de>
To: oss-security@...ts.openwall.com
Subject: Re: [oCERT-2010-001] multiple http client unexpected download filename vulnerability
Solar Designer wrote:
> [...]
> Although I used a somewhat tricky approach in the above exploit,
> eventually making wget overwrite a file, it is also possible to mount
> attacks that do not rely on overwriting any files. Many programs
> support optional startup/config files of fixed/known/guessable names
> that a malicious or compromised server could provide. In fact, I've
> just demonstrated this attack against wget itself, but it could also
> work against another program.
>
> Is this more convincing now?
Serving dot files is a neat trick indeed, I've overlooked that
paragraph in the ocert advisory. Nevertheless I'm not convinced it's
worth changing wget's default behavior in the proposed way. So I can
understand upstream here.
cu
Ludwig
--
(o_ Ludwig Nussel
//\
V_/_ http://www.suse.de/
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nuernberg)
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