Re: disable-cap-mlock

Marc-Christian Petersen
2004-04-01T17:53:39Z

On Thursday 01 April 2004 19:44, William Lee Irwin III wrote:

Hi,

> > What prevents any uid 0 process from changing these sysctl settings
> > (aside from SELinux, if you happen to use it and configure the policy
> > accordingly)?

> I'm aware it does some very unintelligent things to the security model,
> e.g. anyone with fs-level access to these things can basically escalate
> their capabilities to "everything". Maybe some kind of big fat warning
> is in order.

hmm, maybe a /proc/sys/capability/lock and if set to 1 you can't change any of
the sysctl variables, even root should not be allowed to change lock back,
until you do a reboot. Practical?

ciao, Marc