Sender: Doug <mith@jrbobdobbs.org>
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From: Doug Huff <dhuff@jrbobdobbs.org>
In-Reply-To: <BANLkTi=RASna0vQ0bYGc8ApWC++PsNqSAg@mail.gmail.com>
Date: Tue, 28 Jun 2011 08:24:26 -0500
Message-Id: <3AF78BB9-3D12-47B5-995E-387E489297ED@jrbobdobbs.org>
References: <D024B465-AD6C-4AAD-A07F-956223929B6F@jrbobdobbs.org>
	<C9421AA2-D741-4989-9DA8-395D1F532F52@jrbobdobbs.org>
	<BANLkTi=RASna0vQ0bYGc8ApWC++PsNqSAg@mail.gmail.com>
To: Mike Hearn <mike@plan99.net>
Cc: Bitcoin Dev Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Fwd: Live mtgox.com trade matching bug.
Precedence: list


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Begin forwarded message:

> From: Doug Huff <dhuff@jrbobdobbs.org>
> Date: June 27, 2011 11:28:28 PM CDT
> To: Gavin Andresen <gavinandresen@gmail.com>
> Subject: Re: [Bitcoin-development] Fwd: Live mtgox.com trade matching =
bug.
>=20
> Already talked to Jeff and agreed to stop posting them here. There is =
just currently no other forum for such reports. I think he was going to =
talk to you about starting a bitcoin-vendor-sec or similar list.
>=20
> I agree it does not belong there.
>=20
> On Jun 27, 2011, at 11:22 PM, Gavin Andresen wrote:
>=20
>> The bitcoin-development list is for discussion of core bitcoin
>> development, not about Mt.Gox or other sites or software that uses
>> bitcoin.
>>=20
>> --=20
>> --
>> Gavin Andresen
>=20
> --=20
> Doug Huff
>=20
>=20

--=20
Doug Huff

On Jun 28, 2011, at 1:35 AM, Mike Hearn wrote:

> Hi Doug,
>=20
> Could we keep the Mt Gox related stuff off bitcoin-development please?
> It's not related to the core software.
>=20
> On Tue, Jun 28, 2011 at 4:48 AM, Doug Huff <dhuff@jrbobdobbs.org> =
wrote:
>>=20
>>=20
>> Begin forwarded message:
>>=20
>>> From: Doug Huff <mith@jrbobdobbs.org>
>>> Date: June 27, 2011 9:46:13 PM CDT
>>> To: full-disclosure@lists.grok.org.uk, "Mt.Gox" <info@mtgox.com>
>>> Cc: Bitcoin Dev Development =
<bitcoin-development@lists.sourceforge.net>
>>> Subject: Live mtgox.com trade matching bug.
>>>=20
>>> Step 1: Have USD available for spending on mtgox.com.
>>> Step 2: Put in a buy order large enough to drain your account. Low =
enough under the current trading price that it will not execute =
immediately.
>>> Step 3: Withdraw all USD funds.
>>> Step 4: Wait for market to fall enough to meet your order.
>>> Step 5: ...(self explanatory)...
>>>=20
>>> There's a bit of luck in being able to take advantage, obviously.
>>>=20
>>> I would suggest you take the site down asap until this is corrected =
or publicly show how this order will never execute:
>>>=20
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>> Welcome <username removed> 0.00000000 =E0=B8=BFTC 424.44901
>>> Buying  138468.901  0.01  Active  1384.69  06/26 15:27  cancel
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>>=20
>>> I cannot guarantee this order will execute but from everything I've =
observed about the new trade matching code I have no reason to believe =
it will not.
>>>=20
>>> At the very least this could be used to influence market conditions =
if it is only a display bug.
>>>=20
>>> --
>>> Douglas Huff
>>>=20
>>>=20
>>=20
>> --
>> Doug Huff
>>=20
>>=20
>>=20
>> =
--------------------------------------------------------------------------=
----
>> All of the data generated in your IT infrastructure is seriously =
valuable.
>> Why? It contains a definitive record of application performance, =
security
>> threats, fraudulent activity, and more. Splunk takes this data and =
makes
>> sense of it. IT sense. And common sense.
>> http://p.sf.net/sfu/splunk-d2d-c2
>> _______________________________________________
>> Bitcoin-development mailing list
>> Bitcoin-development@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>=20
>>=20

--=20
Doug Huff



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