Remote root exploit against connected clients

Debian Bug report logs - #360559
Remote root exploit against connected clients

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Hendrik Weimer <hendrik@enyo.de>

To: submit@bugs.debian.org

Cc: info@openvpn.net

Subject: Remote root exploit against connected clients

Date: Mon, 03 Apr 2006 10:43:07 +0200

Package: openvpn
Version: 2.0.5-1
Severity: important
Tags: security

As described in http://www.osreviews.net/reviews/security/openvpn
OpenVPN contains a security hole that allows a malicious VPN server to
take over connected clients.

OpenVPN allows to push environment variables to a client via 'push
setenv ...'. Using LD_PRELOAD it is possible to run arbitrary code as
root. The only prerequisite is that the attacker needs to control a
file on the victim's computer, e.g. by returning a specially crafted
document upon web access.

A possible solution would be to prefix all pushed environment
variables with something like 'OPENVPN_'.

Message #10 received at 360559-close@bugs.debian.org (full text, mbox, reply):

From: Alberto Gonzalez Iniesta <agi@inittab.org>

To: 360559-close@bugs.debian.org

Subject: Bug#360559: fixed in openvpn 2.0.6-1

Date: Wed, 05 Apr 2006 03:32:04 -0700

Source: openvpn
Source-Version: 2.0.6-1

We believe that the bug you reported is fixed in the latest version of
openvpn, which is due to be installed in the Debian FTP archive:

openvpn_2.0.6-1.diff.gz
  to pool/main/o/openvpn/openvpn_2.0.6-1.diff.gz
openvpn_2.0.6-1.dsc
  to pool/main/o/openvpn/openvpn_2.0.6-1.dsc
openvpn_2.0.6-1_i386.deb
  to pool/main/o/openvpn/openvpn_2.0.6-1_i386.deb
openvpn_2.0.6.orig.tar.gz
  to pool/main/o/openvpn/openvpn_2.0.6.orig.tar.gz



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 360559@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Alberto Gonzalez Iniesta <agi@inittab.org> (supplier of updated openvpn package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.7
Date: Wed,  5 Apr 2006 12:17:26 +0200
Source: openvpn
Binary: openvpn
Architecture: source i386
Version: 2.0.6-1
Distribution: unstable
Urgency: high
Maintainer: Alberto Gonzalez Iniesta <agi@inittab.org>
Changed-By: Alberto Gonzalez Iniesta <agi@inittab.org>
Description: 
 openvpn    - Virtual Private Network daemon
Closes: 360559
Changes: 
 openvpn (2.0.6-1) unstable; urgency=high
 .
   * New upstream release. Urgency high due to security fix.
     - Disallow "setenv" to be pushed to clients from the server.
       (Closes: #360559)
Files: 
 0f2e3c4c5242990924aaf293bc6d1142 623 net optional openvpn_2.0.6-1.dsc
 8d2f95fa825e58363a676b25d4815aa7 664816 net optional openvpn_2.0.6.orig.tar.gz
 5e7423c57c9428c5e88f04fb60227a56 58406 net optional openvpn_2.0.6-1.diff.gz
 ac1ee7921f725b687eb48db59cfd1312 330058 net optional openvpn_2.0.6-1_i386.deb

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Message #15 received at 360559@bugs.debian.org (full text, mbox, reply):

From: Geoff Crompton <geoff.crompton@strategicdata.com.au>

To: Debian Bug Tracking System <360559@bugs.debian.org>

Subject: openvpn: CVE-2006-1629?

Date: Wed, 12 Apr 2006 14:33:11 +1000

Package: openvpn
Version: 2.0-1sarge2
Followup-For: Bug #360559

Is this the same as CVE-2006-1629? http://www.securityfocus.com/bid/17392 is
listing sarge as vulnerable. Do you know if the security team is working on 
a fix?

Cheers

-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-3-686-smp
Locale: LANG=en_AU, LC_CTYPE=en_AU (charmap=ISO-8859-1)

Versions of packages openvpn depends on:
ii  debconf                   1.4.30.13      Debian configuration management sy
ii  libc6                     2.3.2.ds1-22   GNU C Library: Shared libraries an
ii  liblzo1                   1.08-1.2       A real-time data compression libra
ii  libssl0.9.7               0.9.7e-3sarge1 SSL shared libraries

-- debconf information excluded

Message #20 received at 360559@bugs.debian.org (full text, mbox, reply):

From: Hendrik Weimer <hendrik@enyo.de>

To: Geoff Crompton <geoff.crompton@strategicdata.com.au>

Cc: 360559@bugs.debian.org

Subject: Re: Bug#360559: openvpn: CVE-2006-1629?

Date: Wed, 12 Apr 2006 16:09:44 +0200

Geoff Crompton <geoff.crompton@strategicdata.com.au> writes:

> Package: openvpn
> Version: 2.0-1sarge2
> Followup-For: Bug #360559
>
> Is this the same as CVE-2006-1629?

Yes, it is.

Hendrik

Message #25 received at 360559@bugs.debian.org (full text, mbox, reply):

From: Geoff Crompton <geoff.crompton@strategicdata.com.au>

To: security@debian.org

Cc: 360559@bugs.debian.org

Subject: openvpn CVE-2006-1629?

Date: Thu, 13 Apr 2006 10:24:40 +1000

Hi,

Just wondering if there is an openvpn update in the works to fix
CVE-2006-1629?

Cheers
-- 
Geoff Crompton
Debian System Administrator
Strategic Data
+61 3 9340 9000

Message #30 received at 360559@bugs.debian.org (full text, mbox, reply):

From: Martin Schulze <joey@infodrom.org>

To: Geoff Crompton <geoff.crompton@strategicdata.com.au>

Cc: security@debian.org, 360559@bugs.debian.org

Subject: Re: openvpn CVE-2006-1629?

Date: Mon, 24 Apr 2006 18:12:17 +0200

Geoff Crompton wrote:
> Just wondering if there is an openvpn update in the works to fix
> CVE-2006-1629?

I'm working on it.

Regards,

	Joey

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