Re: Cross-backend signals and administration (Was: Re: pg_terminate_backend for same-role)

On 03/27/2012 03:14 PM, Kevin Grittner wrote:
> Andres Freund<andres@anarazel.de>  wrote:
>> On Tuesday, March 27, 2012 07:51:59 PM Kevin Grittner wrote:
>>>> Well, I guess if you have different people sharing the same
>>>> user-ID, you probably wouldn't want that.
>>>
>>> As Tom pointed out, if there's another person sharing the user ID
>>> you're using, and you don't trust them, their ability to cancel
>>> your session is likely way down the list of concerns you should
>>> have.
>> Hm. I don't think that is an entirely valid argumentation. The
>> same user could have entirely different databases. They even could
>> have distinct access countrol via the clients ip.
>> I have seen the same cluster being used for prod/test instances at
>> smaller shops several times.
>>
>> Whether thats a valid usecase I have no idea.
>
> Well, that does sort of leave an arguable vulnerability.  Should the
> same user only be allowed to kill the process from a connection to
> the same database?
>

It might be a reasonable restriction in theory, but I doubt it's much of 
a security gain.


cheers

andrew