[ GLSA 200903-02 ] ZNC: Privilege escalation
Date: Fri, 06 Mar 2009 23:35:27 +0100
From: Tobias Heinlein <keytoaster@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200903-02 ] ZNC: Privilege escalation
OpenPGP: id=9CE3CA91
Content-Type: multipart/signed; micalg=pgp-sha1;
protocol="application/pgp-signature";
boundary="------------enig1762CCCA81A02E6F1AD3F68C"
X-Virus-Scanned: antivirus-gw at tyumen.ru
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig1762CCCA81A02E6F1AD3F68C
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200903-02
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High
Title: ZNC: Privilege escalation
Date: March 06, 2009
Bugs: #260148
ID: 200903-02
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
A vulnerability in ZNC allows for privilege escalation.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ZNC is an advanced IRC bouncer.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-irc/znc < 0.066 >=3D 0.066
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
cnu discovered multiple CRLF injection vulnerabilities in ZNC's
webadmin module.
Impact
=3D=3D=3D=3D=3D=3D
A remote authenticated attacker could modify the znc.conf configuration
file and gain privileges via newline characters in e.g. the QuitMessage
field, and possibly execute arbitrary code.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All ZNC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-irc/znc-0.066"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2009-0759
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-0759
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-02.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--------------enig1762CCCA81A02E6F1AD3F68C
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.10 (GNU/Linux)
iEYEARECAAYFAkmxpTEACgkQD/IBIJzjypF7BACfWwQAsS9/L+5JWbEEoSWlP32A
KqAAnjfcNyLJxadN6tV5zKejm4GxKzT0
=028/
-----END PGP SIGNATURE-----
--------------enig1762CCCA81A02E6F1AD3F68C--
