full-disclosure - Re: New attack vector for sale, firewall bypass

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Date: Tue, 7 Jun 2011 16:12:15 -0400
From: Marshall Whittaker <marshallwhittaker@...il.com>
To: Dan Rosenberg <dan.j.rosenberg@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: New attack vector for sale, firewall bypass

Dan, did you come up with that on the spot or is there already a whitepaper
on it?
Anyway now that the cats out of the bag...  See attached. :)  No more bids
please.  Dan was correct.

On Tue, Jun 7, 2011 at 9:38 AM, Dan Rosenberg <dan.j.rosenberg@...il.com>wrote:

> On Tue, Jun 7, 2011 at 6:19 AM, Marshall Whittaker
> <marshallwhittaker@...il.com> wrote:
> > Hello,
> > I am willing to sell a new attack vector I have devised.  The proof of
> > concept code you will receive has the ability to arbitrarily upload files
> to
> > a webserver (tested on Apache), running linux with the well known perl
> read
> > pipe vulnerability in many web CGI applications.  This issue can also be
> > leveraged through PHP LFI and RFI attacks, and through almost any other
> > remote command execution vulnerability.
>
> If you have a remote command execution vulnerability, couldn't you
> just leverage whatever useful binaries are available on the victim
> machine (perl, python, echo) to simply copy your exploit/file/etc. to
> disk by printing it byte-by-byte, possibly in pieces?  Did I ruin the
> surprise?
>
> -Dan
>

Content of type "text/html" skipped

Download attachment "perlpipeupload.pl" of type "application/octet-stream" (2897 bytes)

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