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TITLE:
Linksys WRT54GC Cross-Site Request Forgery Vulnerability

SECUNIA ADVISORY ID:
SA36921

VERIFY ADVISORY:
http://secunia.com/advisories/36921/

DESCRIPTION:
VenturoLab Team has reported a vulnerability in Linksys WRT54GC,
which can be exploited by malicious people to conduct cross-site
request forgery attacks.

The diagnostics.cgi script allows users to perform certain actions
via HTTP requests without performing any validity checks to verify
the requests. This can be exploited to e.g. inject arbitrary script
code or cause a DoS via the "ping_address" and "raceroute_address"
parameters.

The vulnerability is reported in firmware version 1.01.5 and 1.00.7.
Other versions may also be affected.

SOLUTION:
Do not visit other websites while being logged-in to the Linksys
administration interface.

PROVIDED AND/OR DISCOVERED BY:
VenturoLab Team

ORIGINAL ADVISORY:
http://venturolab.pl/index.php/2009/09/30/opis-bledu-w-routerze-linksys-wrt54gc/

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