Re: http TRACE option

[Trancer <mtrancer () gmail com>]

From rfc2616:

"The TRACE method is used to invoke a remote, application-layer loop- 
back of the request message. The final recipient of the request SHOULD 
reflect the message received back to the client as the entity-body of a 
200 (OK) response. The final recipient is either the origin server or 
the first proxy or gateway to receive a Max-Forwards value of zero (0) 
in the request (see section 14.31). A TRACE request MUST NOT include an 
entity."

http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html

The HTTP TRACE method can risk a web application using HttpOnly cookies 
to protect against cross-site scripting cookie-theft attacks. Exploiting 
the TRACE method allows an attacker to steal cookies despite the 
HttpOnly option.
Jeremiah Grossman posted a paper about this kind of attack (cross-site 
tracing):
http://www.cgisecurity.com/whitehat-mirror/WH-WhitePaper_XST_ebook.pdf

pentestr wrote:
> Hi,
> what is the issue if TRACE option is enabled in web servers ? Nessus 
> results always display it as warning.
> any idea...
>
> Thanks in advance.
> Rgds.
> P.T.


--
Trancer
0nly Human.


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