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Date: Mon, 07 Dec 2015 18:13:45 +0100
From: "Curesec Research Team (CRT)" <crt@...esec.com>
To: fulldisclosure@...lists.org
Subject: [FD] Geeklog 2.1.0: XSS

Security Advisory - Curesec Research Team

1. Introduction

Affected Product:    Geeklog 2.1.0
Fixed in:            2.1.1b3
Fixed Version Link:  https://www.geeklog.net/filemgmt/visit.php/1156
Vendor Contact:      geeklog-security@...ts.geeklog.net
Vulnerability Type:  XSS
Remote Exploitable:  Yes
Reported to vendor:  09/29/2015
Disclosed to public: 12/02/2015
Release mode:        Coordinated release
CVE:                 requested, but not assigned
Credits              Tim Coen of Curesec GmbH

2. Vulnerability Description

CVSS

Medium 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Description

There is at least one XSS vulnerability in the installation script of Geeklog.

Geeklog recommends to delete the install directory and displays warnings in the
admin area if this is not the case. However, deleting the install directory is
not mandatory, so it should be assumed that not all users will delete it.

3. Proof of Concept

http://localhost/geeklog-2.1.0/public_html/admin/install/bigdump.php?foffset=1&start=1&fn=te<script>alert(1)</script>st.sql

$_REQUEST['site_url'], $_REQUEST['site_admin_url'], and $_SERVER['PHP_SELF']
may be vulnerable as well, but the attacker would need a valid sql backup file
to trigger them.

4. Solution

To mitigate this issue please upgrade at least to version 2.1.1b3:

https://www.geeklog.net/filemgmt/visit.php/1156

Please note that a newer version might already be available.

5. Report Timeline

09/29/2015 Informed Vendor about Issue (no reply)
10/21/2015 Reminded Vendor of Disclosure Date
10/21/2015 Vendor asks for an additional two weeks for testing
11/17/2015 CVE Requested (no reply)
11/30/2015 Vendor releases fix
12/02/2015 Disclosed to public

Blog Reference:
https://blog.curesec.com/article/blog/Geeklog-210-XSS-121.html

--
blog:  https://blog.curesec.com
tweet: https://twitter.com/curesec

Curesec GmbH
Curesec Research Team
Romain-Rolland-Str 14-24
13089 Berlin, Germany

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