Tomaz Bratusa has reported a vulnerability in Linksys WRT54GL, which can be exploited by malicious people to conduct cross-site request forgery attacks.
The vulnerability is caused due to the device allowing users to perform certain actions via HTTP requests without performing any validity checks to verify the request. This can be exploited to e.g. disable the firewall by enticing a logged-in administrator to visit a malicious site.
The vulnerability affects firmware versions 4.30.11 and prior.
Solution: The vendor is currently working on a fix.
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