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remove permissive types from SELinux policy #945

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Jun 22, 2020
Merged

remove permissive types from SELinux policy #945

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7eb2530
selinux-policy: remove permissive mode from all domains
bcressey Jun 10, 2020
6c7c1ed
docs: update to reflect current SELinux policy
bcressey Jun 10, 2020
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6 changes: 2 additions & 4 deletions SECURITY_FEATURES.md
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Expand Up @@ -137,7 +137,5 @@ The policy in Bottlerocket has the following objectives:
2) Block most components from modifying the container archives saved on disk.
3) Stop containers from directly modifying the layers for other running containers.

The policy is currently **incomplete**.
Notably, all domains are marked as "permissive", which means that actions denied by the policy will be logged but not blocked.
This is a temporary measure to allow us to evaluate compatibility with common use cases.
Additional work is tracked in #764.
The policy is currently aimed at hardening the OS against persistent threats.
Future enhancements to the policy will focus on mitigating the impact of OS vulnerabilities, and protecting containers from other containers.
10 changes: 0 additions & 10 deletions packages/selinux-policy/rules.cil
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Expand Up @@ -147,13 +147,3 @@

; Untrusted processes cannot use systems-level management functions.
(neverallow untrusted_s global (systems (manage)))

; TODO: remove once we're confident that we aren't generating AVC
; denials for the majority of workloads.
(typepermissive kernel_t)
(typepermissive init_t)
(typepermissive system_t)
(typepermissive api_t)
(typepermissive runtime_t)
(typepermissive container_t)
(typepermissive super_t)