[Full-disclosure] [ GLSA 200805-06 ] Firebird: Data disclosure

[Robert Buchholz]

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Gentoo Linux Security Advisory                           GLSA 200805-06
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Firebird: Data disclosure
      Date: May 09, 2008
      Bugs: #216158
        ID: 200805-06

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Synopsis
========

Firebird allows remote connections to the administrative account
without verifying credentials.

Background
==========

Firebird is a multi-platform, open source relational database.

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

    -------------------------------------------------------------------
     Package          /      Vulnerable      /              Unaffected
    -------------------------------------------------------------------
  1  dev-db/firebird     < 2.0.3.12981.0-r6        >= 2.0.3.12981.0-r6

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

Viesturs reported that the default configuration for Gentoo's init
script ("/etc/conf.d/firebird") sets the "ISC_PASSWORD" environment
variable when starting Firebird. It will be used when no password is
supplied by a client connecting as the "SYSDBA" user.

Impact
======

A remote attacker can authenticate as the "SYSDBA" user without
providing the credentials, resulting in complete disclosure of all
databases except for the user and password database (security2.fdb).

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Firebird users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v ">=dev-db/firebird-2.0.3.12981.0-r6"

Note: /etc/conf.d is protected by Portage as a configuration directory.
Do not forget to use "etc-update" or "dispatch-conf" to overwrite the
"firebird" configuration file, and then restart Firebird.

References
==========

  [ 1 ] CVE-2008-1880
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1880

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

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

  http://security.gentoo.org/glsa/glsa-200805-06.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 at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 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
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