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postprocess: Disable empty password authentication via authselect #1934

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postprocess: Disable empty password authentication via authselect #1934

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15 changes: 15 additions & 0 deletions packages-openshift.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,21 @@ postprocess:
semanage boolean --modify --on container_use_cephfs # RHBZ#1694045
semanage boolean --modify --on virt_use_samba # RHBZ#1754825

# Disable empty password authentication (HIGH severity, all compliance profiles)
# RHCOS nodes are managed infrastructure with no use case for empty passwords.
# The RHEL pam RPM ships nullok by default; authselect's without-nullok feature
# removes it using the supported RHEL mechanism.
# See: https://github.com/authselect/authselect/commit/e1fbbdc
- |
#!/usr/bin/env bash
set -xeuo pipefail
authselect select sssd without-nullok --force
# Verify nullok was actually removed
if grep -q nullok /etc/pam.d/system-auth /etc/pam.d/password-auth; then
echo "ERROR: nullok still present after authselect" >&2
exit 1
fi

# https://gitlab.cee.redhat.com/coreos/redhat-coreos/merge_requests/812
# https://bugzilla.redhat.com/show_bug.cgi?id=1796537
- |
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