full-disclosure - [ GLSA 200909-17 ] ZNC: Directory traversal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <4AAD4570.3090203@gentoo.org>
Date: Sun, 13 Sep 2009 21:18:08 +0200
From: Tobias Heinlein <keytoaster@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200909-17 ] ZNC: Directory traversal

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200909-17
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: ZNC: Directory traversal
      Date: September 13, 2009
      Bugs: #278684
        ID: 200909-17

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A directory traversal was found in ZNC, allowing for overwriting of
arbitrary files.

Background
==========

ZNC is an advanced IRC bouncer.

Affected packages
=================

    -------------------------------------------------------------------
     Package      /  Vulnerable  /                          Unaffected
    -------------------------------------------------------------------
  1  net-irc/znc       < 0.074                                >= 0.074

Description
===========

The vendor reported a directory traversal vulnerability when processing
DCC SEND requests.

Impact
======

A remote, authenticated user could send a specially crafted DCC SEND
request to overwrite arbitrary files with the privileges of the user
running ZNC, and possibly cause the execution of arbitrary code e.g. by
uploading a malicious ZNC module.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ZNC users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose =net-irc/znc-0.074

References
==========

  [ 1 ] CVE-2009-2658
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2658

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200909-17.xml

Concerns?
=========

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@...too.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

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

Download attachment "signature.asc" of type "application/pgp-signature" (199 bytes)

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/