From: Chris Travers (chris@verkiel.metatrontech.com)
Date: Mon Mar 05 2007 - 18:24:04 EST
Hi;
I suppose I didn't add all the appropriate caveats I should have.
1) I have only resorted to this technique in the past when I have other
customers relying on a given product and a small vendor is not taking
that seriously. It needs to be a small vendor because as you say, you
need to *know* that the person who authorizes it has the power to do
so. In these cases where I have done it, it has come from appropriate
C-level execs. This is also important because in this case you want to
*know* that the person also has the power to fix the problem.
Furthermore, even full disclosure on Bugtraq in this instance had not
been enough to convince the developer that there was a problem!
2) I would prefer to take the following actions (in order of preference):
a) Demonstrate the problem on systems I control No possibility of
trespassing there. This is what I did for my customers.
b) Demonstrate on non-production systems with low visibility
c) Demonstrate on public demo systems (not preferred at all, but
what I had to resort to for the vendor)
d) On production systems, you want some sort of indemnification.
3) Never forget that customers pay you to have an opinion. They are
not paying you to force them to take action. So I would not alienate
customers like this.
Interestingly in the case I mentioned above, it caused a lot of
political problems between the vendor and I (why I wouldn't do with my
customers) but he has started since then to take my security reports
seriously provided that they meet certain minimal sets of criteria.
Since this still isn't enough, I chose to migrate my customers away from
his software (he only fixes problems that can be exploited without a
valid login). But it is still a start.
I would not do it where I wasn't absolutely certain that the person I
was dealing with had the authority to authorize it. I would not do it
for a customer (only a vendor of my customers). I would not run the
exploit on a production system. And I would not do it where there was
not already substantial contact between that vendor and myself.
Best WIshes,
Chris Travers
Craig Wright wrote:
> A contract can be verbal. All that is required for a contract is offer, acceptance and consideration. This said there is the issue of evidence.
>
> Martin is correct when he states " Never _ever_ engage in anything without a signed "get of of jail letter"." You may have a contract with a verbal agreement, but you try and prove it in court.
>
> Worse, an email (though taken as a written agreement) does not give you the ability to presume authority. The system admin may not have the rights to have you do the test. At least with a Deed (a signed, sealed and delivered contract for ease of explanation), you have something to fall on and cover your arse. If the other party had falsely attested that they could authorise you to do the scan, you have a piece of paper supporting this and you can make your own life much easier in the long run.
>
> Regards,
> Craig
>
> -----Original Message-----
> From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com] On Behalf Of Martin Zimmermann
> Sent: Tuesday, 6 March 2007 8:53 AM
> To: Dotzero
> Cc: pen-test@securityfocus.com
> Subject: Re: The legal / illegal line?
>
> Never _ever_ engage in anything without a signed "get of of jail letter"
> + an quite specific agreement stating what you are authorized to do and
> what the potentiel riscs are. Dotzero is very right in concluding that
> they are _not_ in any way a client until a signed agreement exsists. I
> can only imagine very few (and somewhat far fetched) situations where
> you "discover" a vulnerability without "crossing the line", both in
> relation to the law and morally. Besides no serious client would ever
> hire a pen-test team that "pre-pens" them. It shows a complete lack of
> professionalism and often borders on black-mail in most situations of
> cases I've come across. And it qiute frankly sounds like you crossed the
> line!
>
> Just my 1½ cent
>
> Martin
>
> -
>
> Dotzero skrev:
>
>> The original question from Barry was about legal vs illegal. There is
>> only one (IMHO) answer to that question. It depends on jurisdiction.
>> The laws that apply in one jurisdiction may not apply in another.
>>
>> I'm also concerned about Barry asking about when others "approach a
>> client" to tell them about their insecurities following a "simple
>> pen-test".. They are NOT your client unless they have engaged you.
>> They are a potential client. They have no relationship with you and
>> you have not been authorized by them to do anything on their behalf.
>> Even if you haven't done anything illegal, most companies I'm familiar
>> with would be unlikely to hire you or your company under such
>> circumstances. The actions you describe are indicative of a failure to
>> recognize appropriate boundaries.
>>
>> A more reasonable approach (and one more likely to attract business)
>> would be to have your sales people pitch a free security assessment.
>> Have a standard agreement authorizing a standard but limited set of
>> activities that you can then use to show a potential client how they
>> might benefit from your services.
>>
>> As usual, just my 2 cents.
>>
>> dotzero
>>
>
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