Advisory Name: Permanent Cross-Site Scripting (XSS) in FreePBX 2.5.x – 2.6.0
Internal Cybsec Advisory Id: 2010-0102
Vulnerability Class: Permanent Cross-Site Scripting (XSS)
Release Date: 15/01/2010
Affected Applications: Confirmed in FreePBX 2.5.x and 2.6.0 - Other
versions may also be affected
Affected Platforms: Any running FreePBX 2.5.x and 2.6.0
Local / Remote: Remote
Severity: Medium – CVSS: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Researcher: Ivan Huertas
Vendor Status: Patched
Reference to Vulnerability Disclosure Policy:
http://www.cybsec.com/vulnerability_policy.pdf
Vulnerability Description:
A permanent Cross Site Scripting vulnerability was found in FreePBX 2.5.x
and 2.6, because the application fails to sanitize user-supplied input.
The vulnerability can be triggered by any logged-in user who is able to
add an Inbound Route.
Proof of Concept:
* Add as a Description in an Inbound
Route.
Impact:
An affected user may unintentionally execute scripts or actions written by
an attacker. In addition, an attacker may obtain authorization cookies
that would allow him to gain unauthorized access to the application.
Solution:
Upgrade to the latest version
• http://www.freepbx.org/v2/changeset/8589
• http://www.freepbx.org/v2/changeset/8590
• http://www.freepbx.org/v2/changeset/8591
Vendor Response:
2009-30-12 – Vulnerability was identified
2010-01-07 – Vendor contacted
2010-01-11 – Vendor confirmed vulnerability
2010-01-14 – Vendor released fixed version
2010-01-15 – Vulnerability published
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:
======================================================
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/11184.pdf (CYBSEC-Advisory2010-0102-FreePBX_2_5_x-2_6_Permanent_XSS.pdf)
