[33508] in bugtraq
Apache-SSL security advisory - apache_1.3.28+ssl_1.52 and prior
daemon@ATHENA.MIT.EDU (Adam Laurie)
Sat Feb 7 10:09:09 2004
Message-ID: <40238304.4090001@algroup.co.uk>
Date: Fri, 06 Feb 2004 12:05:24 +0000
From: Adam Laurie <adam@algroup.co.uk>
MIME-Version: 1.0
To: apache-ssl@lists.aldigital.co.uk, apache-sslannounce@lists.aldigital.co.uk,
full-disclosure@lists.netsys.com, bugtraq@securityfocus.com
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Apache-SSL optional client certificate vulnerability
----------------------------------------------------
Synopsis
--------
If configured with SSLVerifyClient set to 1 or 3 (client certificates
optional) and SSLFakeBasicAuth, Apache-SSL 1.3.28+1.52 and all earlier
versions would permit a client to use real basic authentication to
forge a client certificate.
All the attacker needed is the "one-line DN" of a valid user, as used
by faked basic auth in Apache-SSL, and the fixed password ("password"
by default).
Fix
---
Install Apache-SSL 1.3.29+1.53 from the usual places (see
http://www.apache-ssl.org/).
Credits
-------
This vulnerability was found and reported by Wietse Venema.
cheers,
Adam
--
Adam Laurie Tel: +44 (20) 8742 0755
A.L. Digital Ltd. Fax: +44 (20) 8742 5995
The Stores http://www.thebunker.net
2 Bath Road http://www.aldigital.co.uk
London W4 1LT mailto:adam@algroup.co.uk
UNITED KINGDOM PGP key on keyservers
