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Re: pam question

daemon@ATHENA.MIT.EDU (Andreas Hasenack)
Wed Aug 2 13:12:06 2000

Mail-Followup-To: Andreas Hasenack <andreas@conectiva.com.br>,
                  Vincent Danen <vdanen@MANDRAKESOFT.COM>,
                  BUGTRAQ@SECURITYFOCUS.COM
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Message-ID:  <20000802094457.C8268@conectiva.com.br>
Date:         Wed, 2 Aug 2000 09:44:57 -0300
Reply-To: Andreas Hasenack <andreas@CONECTIVA.COM.BR>
From: Andreas Hasenack <andreas@CONECTIVA.COM.BR>
X-To:         Vincent Danen <vdanen@MANDRAKESOFT.COM>
To: BUGTRAQ@SECURITYFOCUS.COM
In-Reply-To:  <20000731195045.C25997@mandrakesoft.com>; from
              vdanen@MANDRAKESOFT.COM on Mon, Jul 31, 2000 at 07:50:45PM -0400

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Em Mon, Jul 31, 2000 at 07:50:45PM -0400, Vincent Danen escreveu:
> Hi there.  I have a question about the security explots in pam that
> Connectiva and RedHat announced.  Does anyone know what version the
> exploit first appeared in?  Specifically, I'm wondering if versions
> 0.66 and 0.68 are afflicted with this exploit.

pam_console is the affected module. As stated in the advisories, if
you:
- login remotely (X -broadcast) (have gdm, kdm, whatever running
with XDMCP enabled somewhere)
- after login, start Xnest with -broadcast again, for example
- login again, now you will be using display :1
- this is treated as a console user, and commands only available
  to console users can be run, such as reboot.

I have tried this from versions 0.66 through 0.72 (unpatched) and
the problem exists in those.

There is a problem with versioning with this package, though.=20
The fixed version has the exact same version number as the previous=20
one, not even a patch: it's just repackaged in the tar ball.=20
Pristine sources?

--=20
Andreas Hasenack
andreas@conectiva.com.br


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