[ GLSA 200402-05 ] phpMyAdmin < 2.5.6-rc1 directory traversal attack

From: Tim Yamin (plasmaroo_at_gentoo.org)
Date: 02/17/04

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    Date: Tue, 17 Feb 2004 02:20:50 +0000
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    Gentoo Linux Security Advisory GLSA 200402-05
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    ~ http://security.gentoo.org
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    ~ Severity: Normal
    ~ Title: phpMyAdmin < 2.5.6-rc1 directory traversal attack
    ~ Date: February 17, 2004
    ~ Bugs: #40268
    ~ ID: 200402-05

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    Synopsis
    ========

    A vulnerability in phpMyAdmin which was not properly verifying user
    generated input could lead to a directory traversal attack.

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

    A component of the phpMyAdmin software package (export.php) does not
    properly verify input that is passed to it from a remote user. Since the
    input is used to include other files, it is possible to launch a
    directory traversal attack.

    Impact
    ======

    Sensitive information could be gleaned from the server if an
    attacker uses a malformed URL such as
    http://phpmyadmin.example.com/export.php?what=../../../[existing_file]

    In this scenario, the script does not sanitize the "what" argument
    passed to it, allowing directory traversal attacks to take place, and
    disclosing the contents of files if the file is readable as the
    web-server user.

    Workaround
    ==========

    The workaround is to either patch the export.php file using the
    referenced CVS patch [ 1 ] or upgrade the software via Portage.

    Resolution
    ==========

    Users are encouraged to upgrade to phpMyAdmin-2.5.6_rc1:

    ~ # emerge sync
    ~ # emerge -pv ">=dev-db/phpmyadmin-2.5.6_rc1"
    ~ # emerge ">=dev-db/phpmyadmin-2.5.6_rc1"
    ~ # emerge clean

    References
    ==========

    [ 1 ] CVS Patch export.php of phpMyAdmin:

    http://cvs.sourceforge.net/viewcvs.py/phpmyadmin/phpMyAdmin/export.php?r1=2.3&amp;r2=2.3.2.1

    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.

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