Pure silliness now. As this topic always becomes.
I never said or insinuated the platform was immune.
In shops I’ve worked, very few had access to add to the APF list. Security and 
Audit often questioned additions. Most additions were software libs from 2-3 
vendors whose libraries were also tightly controlled.
Show me a link to your third scenario successfully implemented? Or is this some 
sort of “could happen” if the stars aligned and you had a dozen unlikely things 
happen all at the same time?


Sent from Yahoo Mail for iPhone


On Tuesday, May 28, 2019, 11:44 AM, Ray Overby <[email protected]> wrote:

This discussion on mainframe vulnerabilities has unfortunately broken 
down. I have been talking to mainframe people about vulnerabilities for 
the last 12 years. I have talked with people just like Bill Johnson. My 
discussions went just like this discussion did. The problem (as I saw 
it) was that discussing a “mainframe vulnerability” is too ambiguous. 
The discussion needs to be more specific. This led to categorizing 
vulnerabilities. When the vulnerabilities were categorized (which also 
defined their capabilities BUT does not allow the hacker to generate an 
exploit) the discussions evolved to the point that not only did the 
mainframe people better understand the vulnerabilities and their 
associated risk but also allowed C level, managers, Auditors, Security, 
Pen testers, and Risk people to understand and participate in the 
vulnerability discussions.

For example, you can classify mainframe vulnerabilities based upon their 
source – configuration or code based. Classifying the vulnerability 
eliminates ambiguities that are inherent when you don’t classify. It is 
these ambiguities that can cause the discussion to break down.  For 
example, how would the discussion have changed if the vulnerabilities 
under discussion were classified as follows:

-Configuration based vulnerabilities

  * APF authorized data sets not adequately protected
  * SMP/E data sets not adequately protected
  * FTP anonymous allowed
  * FTP JES option allowed
  * Outgoing TCPIP traffic not protected

-Code based vulnerabilities

  * Storage alteration
  * Trap door
  * System Instability

To better focus the discussion perhaps the following questions should be 
discussed:

Q for Bill Johnson – Are you saying that the mainframe is immune from 
any type of vulnerabilities (Code and Configuration based)?

Q for Bill Johnson - Do you consider a configuration based vulnerability 
(APF authorized data set not adequately protected) as a hack if it is 
exploited?

Q for Bill Johnson – Do you consider a code based vulnerability (storage 
alteration that allows dynamic elevation of ESM or z/OS authorities by 
any user of z/OS) as a hack if it is exploited?


On 5/28/2019 9:23 AM, Bill Johnson wrote:
> And you sell security services. What do I expect you to say?
> Not everything I provided was IBM.
>
>
> Sent from Yahoo Mail for iPhone
>
>
> On Tuesday, May 28, 2019, 10:13 AM, ITschak Mugzach <[email protected]> 
> wrote:
>
> These Are IBM docs. What you expect them to say?
>
> ITschak
>
> בתאריך יום ג׳, 28 במאי 2019, 16:54, מאת Tom Marchant ‏<
> [email protected]>:
>
>> On Tue, 28 May 2019 13:32:35 +0000, Bill Johnson wrote:
>>
>>> If you either didn’t read or didn’t comprehend the posts I provided, I
>> cannot help you.
>>
>> As I wrote, I read all of the references that you posted.
>> Yes, I understood them.
>> You misrepresented what they said.
>> Now your response is to insult me. That is pathetic.
>>
>> --
>> Tom Marchant
>>
>>> Sent from Yahoo Mail for iPhone
>>>
>>>
>>> On Tuesday, May 28, 2019, 9:17 AM, Tom Marchant <
>> [email protected]> wrote:
>>> On Mon, 27 May 2019 16:05:33 +0000, Bill Johnson wrote:
>>>
>>>> Mainframes are by design far more secure. For good reason. The exposure
>>>> is catastrophic potentially. It’s one of the main reasons why banks rely
>> and
>>>> stay on it and spend tens of millions for it. I’ve already provided
>> numerous
>>>> links referencing it.
>>> You have provided pitifully little to support your claim that the
>> security of
>>> mainframes is the reason banks and others stay with them. I have read
>>> all of the references that you posted, and most of them list the
>> POTENTIAL
>>> to secure them as ONE of the reasons why people use mainframes for
>>> mission-critical data, but not the main reason.
>>>
>>> You have over-stated your case.
>>>
>>>> Add in my criminal justice knowledge along with my computer science
>>>> degree and 40 years of experience in IT and security. But don’t let me
>>>> dispel your beliefs.
>>> So I shoulodn't question you because you are the expert?
>>> I call BS.
>>>
>>> --
>>> Tom Marchant
>>>
>>>> Sent from Yahoo Mail for iPhone
>>>>
>>>>
>>>> On Monday, May 27, 2019, 11:45 AM, Chad Rikansrud <
>> [email protected]> wrote:
>>>> At the risk of re-kicking the already dead horse:  Bill, you're
>> comparing apples and spiders.
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