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[Full-Disclosure] Thomson TCW690 Denial Of Service Vulnerability
- To: bugtraq@xxxxxxxxxxxxxxxxx, bugs@xxxxxxxxxxxxxxxxxxx, news@xxxxxxxxxxxxxx, full-disclosure@xxxxxxxxxxxxxxxx, vuln@xxxxxxxxxxx
- Subject: [Full-Disclosure] Thomson TCW690 Denial Of Service Vulnerability
- From: MurDoK <murdok.lnx@xxxxxxxxx>
- Date: Sat, 19 Feb 2005 10:43:44 +0100
I found a vulnerability in this cablemodem which a malicious user inside *LAN
can reset it easily.
This cablemodem model is given by the spanish ISP "AUNA".
Details
=======
Product: Thomson TCW690 cablemodem
Affected Version: ST42.03.0a (possible others)
Immune Version: ???
Security-Risk: high
Exploit: yes
Product-URL:
http://www.thomson.net/EN/Home/MiniSites/BAP/Cable/ModelDetail.html?category=cab%20modem%20Eurodocsis&model=TCW690
Vendor-URL: http://www.thomson.net/
Vendor-Status: informed but no response
Description
===========
The http server inside this cablemodem doesn't check the length of GET
requests. If you exploit this bug the router will become unstable for ~50
seconds.
Exploit
=======
No code needed. Just open your browser to
http://192.168.0.1/AAAA[about 2000 A's]AAA
Fix
===
No response from vendor. There isn't fix available.
Vendor Status
==============
2005.02.07 - Bug found.
2005.02.07 - Informed the vendor broadband@xxxxxxxxxxx, no response.
2005.02.11 - Informed the vendor webmaster@xxxxxxxxxxxx
2005.02.19 - Public disclosure.
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