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WordPress Tune Library 1.5.4 SQL Injection

WordPress Tune Library 1.5.4 SQL Injection
Posted Apr 21, 2015
Authored by Hannes Trunde

WordPress Tune Library plugin version 1.5.4 suffers from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
advisories | CVE-2015-3314
SHA-256 | 2931fb6c373d55fd921ef587bf5ef92aa275394f123b701795f90f8bc9d6476d

WordPress Tune Library 1.5.4 SQL Injection

Change Mirror Download
=======================================================================
title: SQL Injection
product: WordPress Tune Library Plugin
vulnerable version: 1.5.4 (and probably below)
fixed version: 1.5.5
CVE number: CVE-2015-3314
impact: CVSS Base Score 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
homepage: https://wordpress.org/plugins/tune-library/
found: 2015-01-09
by: Hannes Trunde

mail: hannes.trunde@gmail.com
twitter: @hannestrunde

=======================================================================


Plugin description:
-------------------
"This plugin is used to import an XML iTunes Music Library file into your
WordPress database. Once imported, you can display a complete listing of your
music collection on a page of your WordPress site."

Source: https://wordpress.org/plugins/tune-library/


Recommendation:
---------------
The author has provided a fixed plugin version which should be installed
immediately.


Vulnerability overview/description:
-----------------------------------
Because of insufficient input validation, a sql injection attack can be
performed when sorting artists by letter.

However, special conditions must be met in order to exploit this vulnerability:
1) The wordpress security feature wp_magic_quotes(), which is enabled by
default, has to be disabled.
2) The plugin specific option "Filter artists by letter and show alphabetical
navigation" has to be enabled.


Proof of concept:
-----------------
The following HTTP request to the Tune Library page returns version, current
user and db name:
===============================================================================
http://www.site.com/?page_id=2&artistletter=G' UNION ALL SELECT CONCAT_WS(CHAR(59),version(),current_user(),database()),2--%20
===============================================================================


Contact timeline:
------------------------
2015-04-08: Contacting author via mail.
2015-04-09: Author replies and announces a fix within a week.
2015-04-12: Mail from author, stating that plugin has been updated.
2015-04-14: Requesting CVE via post to the open source software security mailing
list: http://openwall.com/lists/oss-security/2015/04/14/5
2015-04-20: Release of security advisory.


Solution:
---------
Update to the most recent plugin version.


Workaround:
-----------
Make sure that wp_magic_quotes() is enabled and/or disable "Filter artists by
letter..." option.
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