disable setenforce

Stephen Smalley sds at tycho.nsa.gov
Mon Sep 12 15:00:35 UTC 2005

On Mon, 2005-09-12 at 16:52 +1000, Russell Coker wrote:
> I've attached a patch against the latest rawhide policy (which should also 
> work against the latest FC4 policy).
> This patch adds a new boolean named secure_mode_policyload to cover loading 
> policy, setting boolean states, and setting enforcing mode.  It also adds a 
> new boolean named secure_mode_insmod to control module loading.
> NB  Setting secure_mode_policyload to default to 1 at boot time will work, but 
> that means policy can only be loaded once at boot (should be able to install 
> new policy and reboot the machine though).  Setting secure_mode_insmod at 
> boot will probably make the boot process fail for all non-trivial machines, 
> the initial values of booleans are set before modules for devices such as 
> Ethernet cards.  Setting secure_mode_insmod after the boot process is 
> completed might be a good idea if you have no plans to use USB or 
> Cardbus/PCMCIA, there have been exploits which relied on the ability to trick 
> the system into loading modules (EG the ptrace exploit).

Did you attach the wrong patch?  The one you sent doesn't define new
booleans; it just wraps additional rules with the existing secure_mode

Stephen Smalley
National Security Agency

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