Flexwath Authorization Bypassing and XSS Vulnerability - Digital Armaments for Intelligence

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Flexwath Authorization Bypassing and XSS Vulnerability

Digital Armaments advisory is 04.15.2006

I. Background

FlexWATCH is a stand-alone network camera server with built-in CMOS camera and web server which deliver crisp real time live videos at a rate up to 30fps over the network. It is normally used as security camera.
For further information or detail about the software you can refer to the vendor's homepage:

http://www.flexwatch.com/

II. Problem Description

Flexwatch Network Cameras are vulnerable to two security flaws, allowing a cross site scripting and bypassing the protected areas. Here detailed:

- Cross-site scripting:

An attacker can cause a Cross-site-scripting:
http://camera/%3Cscript%3Ealert('www.eazel.es')%3C/script%3E

- Authorization Bypassing:

An attacker can bypass the protection of protected pages using /..%2f and access to administrative area:
Network Camera V3.0: http://camera/..%2fadmin/aindex.asp
Networks Camera Prior versions: http://camera/app/..%2fadmin/aindex.htm

III. Detection

This problem has been detected on latest and older version of Flexwatch Network Cameras.
Network Camera Versions tested on:
- ver 3.0 for FW-3400-A(PAL)
- ver 2.0 (PAL)
- ver 2.3 (NTSC)

IV. Impact analysis

Successful exploitation allow an attacker to bypass authorization and access the image/video of the security camera. Cross site attacks are also possible.

V. Solution

First notification 04.16.2006.
Second notification 04.22.2006.
No answer from the vendor.

VI. Credit

Jaime Blasco - jaime.blasco@eazel.es is credited with this discovery.

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