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Date: Sat, 18 May 2013 01:21:20 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: Russ Allbery <rra@...ian.org>
CC: oss-security@...ts.openwall.com, Salvatore Bonaccorso <carnil@...ian.org>
Subject: Re: CVE Request: WebAuth: Authentication credential
 disclosure

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On 05/18/2013 01:15 AM, Russ Allbery wrote:
> Kurt Seifried <kseifried@...hat.com> writes:
> 
>> I did a Google search, there appear to be other 
>> universities/organizations using WebAuth, was the vulnerable
>> version made generally available (e.g. on an ftp site or
>> whatever?).
> 
> Yes, via http://webauth.stanford.edu/ as well as via my personal
> web site. I did issue an advisory (to
> webauth-announce@...ts.stanford.edu).  There were six announced
> (distributed, tagged, etc.) releases that had this vulnerability.
> 
> WebAuth is moderately well-used; it's not as popular as some of the
> other web single sign-on systems, but it's been distributed with
> Debian and Ubuntu for quite a while and I know a fair number of
> sites that use it.
> 
> The time interval between the broken and fixed version was
> relatively short (four months -- we're in the middle of a heavy
> development cycle) and the flaw was only in the central server
> component (which you only run one of within any given organization
> and tend to be conservative about upgrading) as opposed to the
> Apache modules that are installed everywhere, so it's possible that
> no one who met the fairly specific conditions required to trigger
> the bug ever deployed it, but I don't have a way of knowing that
> for certain.

Yeah in this case I'm definitely going count a 4 month window as "made
available" =). Please use CVE-2013-2106 for this issue. With any luck
now all the standard scanners like Nessus will add a test and anyone
vulnerable will find out asap.

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
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