Re: Restricting / Limiting permission/ownership of targetted binaries?

On 4/30/21 10:56 AM, Grant Taylor via sudo-users wrote:
> I think that the permissions of the target binary are a second order 
> concern that enables the first order concern of changing the target 
> binary, even if the new target binary has the same permissions as the 
> old target binary.

This is where the hash of the target binary comes into play as 
protection against it being changed out.

Technically I suppose it is theoretically possible to replace the old 
target binary with a new target binary that has the same hash value. 
But hash collisions are non-trivial and you have to really want to 
expend the effort.



-- 
Grant. . . .
unix || die

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