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:
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
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.
Upgrade to the latest version
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
For more information regarding the vulnerability feel free to contact the
ihuertas <at> cybsec <dot> com
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