[Full-disclosure] [ GLSA 200506-13 ] webapp-config: Insecure temporary file handling

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 06/17/05

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    To: gentoo-announce@gentoo.org
Date: Fri, 17 Jun 2005 15:55:19 +0200

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    Gentoo Linux Security Advisory GLSA 200506-13
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: webapp-config: Insecure temporary file handling
          Date: June 17, 2005
          Bugs: #91785, #88831
            ID: 200506-13

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    Synopsis
    ========

    The webapp-config utility insecurely creates temporary files in a world
    writable directory, potentially allowing the execution of arbitrary
    commands.

    Background
    ==========

    webapp-config is a Gentoo Linux utility to help manage the installation
    of web-based applications.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-www/webapp-config < 1.11 >= 1.11

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

    Eric Romang discovered webapp-config uses a predictable temporary
    filename while processing certain options, resulting in a race
    condition.

    Impact
    ======

    Successful exploitation of the race condition would allow an attacker
    to disrupt the operation of webapp-config, or execute arbitrary shell
    commands with the privileges of the user running webapp-config. A local
    attacker could use a symlink attack to create or overwrite files with
    the permissions of the user running webapp-config.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All webapp-config users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-www/webapp-config-1.11"

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

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

      http://security.gentoo.org/glsa/glsa-200506-13.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@gentoo.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

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