[Info-vax] Assembly languages

[VAXman- at SendSpamHere.ORG]

In article <t34d6c$m3a$1 at dont-email.me>, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> writes:
>On 2022-04-12, VAXman-  @SendSpamHere.ORG <VAXman- at SendSpamHere.ORG> wrote:
>> In article <t33r9h$pr$1 at dont-email.me>, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> writes:
>>>On 2022-04-11, VAXman-  @SendSpamHere.ORG <VAXman- at SendSpamHere.ORG> wrote:
>>>> In article <t31ose$pr0$1 at dont-email.me>, Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> writes:
>>>>>
>>>>>Ok, Brian, you win. I'll be pedantic if you wish. :-)
>>>>>
>>>>>Once you have code you control running in one of the hardware inner modes,
>>>>>you can get to the others without any additional privileges required on
>>>>>the part of the account doing it.
>>>>
>>>> NOT TRUE.  Stop confusing $CMKRNL from EXEC mode with all others.  You can 
>>>> NOT get to EXEC from SUPERVISOR mode.  Granted, you found an exploit with an
>>>> installed image but that was corrected.  There's no $CMEXEC jump from SUPER-
>>>> VISOR mode without privileges vis-a-vis $CMKRNL from EXEC mode.
>>>>
>>>
>>>You are contradicting yourself with the above statements Brian.
>>>First you say it's not possible, then you say it's possible if the
>>>supervisor mode code has access to the privileges of the current image.
>>
>> IT IS NOT THAT SUPERVISOR MODE GRANTED YOU ANY SPECIAL MOVEMENT TO AN INNER
>> MODE!  You used an image installed with privileges.  The gang that found the
>> SMG$ bug employed an image installed with privileges FROM USER MODE.  Bugs
>> occur in software save, of course, yours -- assuming you can write software
>> or do you just spend your day littering c.o.v? -- because you are perfect in
>> every way and noone can question your assertions and aspersions.
>>
>
>In a way, it did. The image activator behaves differently when invoked
>in supervisor mode compared to when invoked in user mode.

It does not.  Explain what you believe is different.  You make these stupid
statements but never explain them.



>The key question is this: Can a non-privileged user who gets code they
>control running in supervisor mode come up with a way to switch to
>from supervisor mode to executive mode or kernel mode ?
>
>The answer to that question is yes.

By simple virtue of being in SUPERVISOR more?  No.  If you'd care to explain
otherwise, I'm listening.



>Which means that my original statement about VMS only having a single
>inner mode when looked at from the viewpoint of security is also correct.

STFU!  Put your money/pride where your mouth is and show me/us.


>Simon.
>
>PS: BTW, I don't assume that I am perfect when I write code. That's why
>I like languages that help me find errors early on.

LOL

I'll be away for a week in Sarasota.  Take your time and I'll see your lack
of REAL evidence in a week.
-- 
VAXman- A Bored Certified VMS Kernel Mode Hacker    VAXman(at)TMESIS(dot)ORG

I speak to machines with the voice of humanity.