[Info-vax] The best VMS features, was: Re: openvms renaming file

Johnny Billquist bqt at softjar.se
Mon May 28 16:19:44 EDT 2018


On 2018-05-28 21:15, Simon Clubley wrote:
> On 2018-05-28, Arne Vajhøj <arne at vajhoej.dk> wrote:
>> On 5/28/2018 1:56 AM, Simon Clubley wrote:
>>>
>>> For one obvious example, what exactly is the point of having both
>>> CMEXEC and CMKRNL privileges on VMS, given how VMS is designed ?
>>>
>>> Because of that design, CMEXEC is completely and utterly redundant
>>> and is just artifical complexity (and a false sense of security).
>>
>> I don't think it is.
>>
>> It was never intended to be a security feature where getting from EXEC
>> to KRNL required something special.
>>
>> But it did and still does provide two levels of access for code,
>> that protects against coding errors (but not against malicious code).
>>
> 
> All you need to do is to give the user or program CMKRNL privilege and
> let the program switch into executive mode instead because when you
> give the user or program CMEXEC privilege, what you are really giving
> them is CMKRNL privilege.
> 
> CMEXEC is utterly redundant within VMS as currently implemented.

How about you actually listen and understand what someone said? The use 
case Arne brought up is perfectly valid.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol



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