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

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Message-ID: <BANLkTi=zEzCnEZnSQ_qjbuKWS=XTNbDqrg@mail.gmail.com>
Date: Tue, 7 Jun 2011 16:25:50 -0400
From: Dan Rosenberg <dan.j.rosenberg@...il.com>
To: Marshall Whittaker <marshallwhittaker@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: New attack vector for sale, firewall bypass

On Tue, Jun 7, 2011 at 4:12 PM, Marshall Whittaker
<marshallwhittaker@...il.com> wrote:
> Dan, did you come up with that on the spot or is there already a whitepaper
> on it?

I haven't seen any whitepapers on this.  I think it's the sort of
thing that people just figure out when needed, or pull from their bag
of tricks.

-Dan

> 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
>
>

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