Adrian Pastor has reported some vulnerabilities in Thomson SpeedTouch 780, which can be exploited by malicious people to conduct cross-site request forgery and cross-site scripting attacks.
1) Input passed to the "url" parameter in cgi/b/ic/connect/ is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
2) Users are able to perform certain actions via HTTP requests without the device performing any validity checks to verify the request. This can be exploited to e.g. change the administrator password by enticing a logged-in administrator to visit a malicious site.
The vulnerabilities are reported in firmware version 220.127.116.11. Other versions may also be affected.
Solution: Do not browse untrusted sites or follow untrusted links.
Provided and/or discovered by: Adrian Pastor
Original Advisory: http://www.gnucitizen.org/blog/bt-home-flub-pwnin-the-bt-home-hub-4
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Subject: Thomson Speedtouch 780 Cross-Site Request Forgery and Cross-Site Scripting
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