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Re: Cgisecurity.com Advisory #6: thttpd and mini_http Permission bypass vuln

daemon@ATHENA.MIT.EDU (Ben Okopnik)
Wed Nov 14 23:25:41 2001

Date: Wed, 14 Nov 2001 20:27:42 -0500
From: Ben Okopnik <fuzzybear@pocketmail.com>
To: zeno <bugtraq@cgisecurity.net>
Cc: Klaxon <klaxon@netcabo.gt>, bugtraq@securityfocus.com
Message-ID: <20011114202742.B31653@Baldur>
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In-Reply-To: <200111141842.fAEIgLj08074@cgisecurity.net>

On Wed, Nov 14, 2001 at 06:42:21PM +0000, zeno wrote:
> > On 13.11.2001 16:25 zeno wrote:
> > 
> > >  Scripts Effected: Thttpd Secure Webserver, and Mini_httpd Webserver
> > 
> > >  If htaccess is used to password protect a directory, it is possible an
> > >  attacker can access data behind the password protected area by knowing
> > >  the name of the file he wants to view without a valid login. This also
> > >  works on htpasswd files in general, which are protected by the webserver
> > >  itself so that it cannot be readable by the web. A request like the one
> > >  below will gladly feed the contents of a .htpasswd file.
> > 
> >   Couldn't reproduce the described behavior running thttpd 2.20b on freebsd
> > and linux (with and without chroot)
> >i
> 
> This had been tested on multiple machines. The vendor was also able to reproduce this
> with the chroot option also. Perhaps not all are effected like previously thought.
> 
> Did you download it within the last 2 weeks? He put a patch in the version on his site
> with no public notice.
 
Can't reproduce it on Debian Linux (woody), 2.2.19 kernel, thttpd-2.20b.
Originally downloaded in early August; size comparison and a CRC32 of the
original package against the one at the vendor's site show no differences.


Ben Okopnik
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