Ubuntu 20.04: Make sure xatrr audit rules contains a check for root user

[dodys]

Description:

• On Ubuntu 20.04 STIG V1R1, the items related to xattr (UBTU-20-010142, UBTU-20-010143, UBTU-20-010144, UBTU-20-010145, UBTU-20-010146 and UBTU-20-010147) should have a check for root user. E.g.:

-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=-1 -k perm_mod
-a always,exit -F arch=b32 -S setxattr -F auid=0 -k perm_mod                            <- Check for root
-a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=-1 -k perm_mod
-a always,exit -F arch=b64 -S setxattr -F auid=0 -k perm_mod                            <- Check for root

This was missing and can easily be added by setting check_root_user to true.

[openshift-ci]

Hi @dodys. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

rhel8 (from CTF) Environment (using Fedora as testing environment)

Fedora Testing Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit ed4b1ea and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 46.1% (0.0% change).

View more on Code Climate.

[jan-cerny]

The CI fail is unrelated to the changes, the changes are only in the template data only for ubuntu 2004 and therefore they do not affect CS/Fedoru.