full-disclosure - [ GLSA 200501-21 ] HylaFAX: hfaxd unauthorized login vulnerability

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]

From: koon at gentoo.org (Thierry Carrez)
Subject: [ GLSA 200501-21 ] HylaFAX: hfaxd unauthorized
	login vulnerability

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200501-21
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: HylaFAX: hfaxd unauthorized login vulnerability
      Date: January 11, 2005
      Bugs: #75941
        ID: 200501-21

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

Synopsis
========

HylaFAX is subject to a vulnerability in its username matching code,
potentially allowing remote users to bypass access control lists.

Background
==========

HylaFAX is a software package for sending and receiving facsimile
messages.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  net-misc/hylafax     < 4.2.0-r2                       >= 4.2.0-r2

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

The code used by hfaxd to match a given username and hostname with an
entry in the hosts.hfaxd file is insufficiently protected against
malicious entries.

Impact
======

If the HylaFAX installation uses a weak hosts.hfaxd file, a remote
attacker could authenticate using a malicious username or hostname and
bypass the intended access restrictions.

Workaround
==========

As a workaround, administrators may consider adding passwords to all
entries in the hosts.hfaxd file.

Resolution
==========

All HylaFAX users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/hylafax-4.2.0-r2"

Note: Due to heightened security, weak entries in the hosts.hfaxd file
may no longer work. Please see the HylaFAX documentation for details of
accepted syntax in the hosts.hfaxd file.

References
==========

  [ 1 ] CAN-2004-1182
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1182
  [ 2 ] HylaFAX Announcement
        http://marc.theaimsgroup.com/?l=hylafax&m=110545119911558&w=2

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

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

  http://security.gentoo.org/glsa/glsa-200501-21.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
http://bugs.gentoo.org.

License
=======

Copyright 2005 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/2.0

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: OpenPGP digital signature
Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20050111/8ba1ec71/signature.bin