oss-security - Re: CVE request: ejabberd compression allows cirucumvention of encryption despite starttls

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Message-ID: <CACYkhxgk6oKOxoYR2DRp1BE5yd5oCAcPyvbL9tTqzQ-eTL4mxQ@mail.gmail.com>
Date: Tue, 14 Oct 2014 12:39:48 +1100
From: Michael Samuel <mik@...net.net>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: ejabberd compression allows
 cirucumvention of encryption despite starttls_required

On 14 October 2014 00:09, Hanno Böck <hanno@...eck.de> wrote:
> I think this deserves a CVE:
> http://mail.jabber.org/pipermail/operators/2014-October/002438.html

If a client is willing to do that, then an attacker can simply force downgrade
the client and connect to the server using TLS. (Assuming client
certificates aren't in use)

Regards,
  Michael

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