SV-257509r960777_rule
V-257509
SRG-APP-000026-CTR-000070
CNTR-OS-000050
CAT II
10
Apply the machine config using the following command:
for mcpool in $(oc get mcp -oname | sed "s:.*/::" ); do
echo "apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
name: 75-account-modifications-rules-$mcpool
labels:
machineconfiguration.openshift.io/role: $mcpool
spec:
config:
ignition:
version: 3.1.0
storage:
files:
- contents:
source: data:,-w%20/etc/sudoers.d/%20-p%20wa%20-k%20actions%0A-w%20/etc/sudoers%20-p%20wa%20-k%20actions%0A
mode: 0644
path: /etc/audit/rules.d/75-audit-sysadmin-actions.rules
overwrite: true
- contents:
source: data:,-w%20/etc/group%20-p%20wa%20-k%20audit_rules_usergroup_modification%0A
mode: 0644
path: /etc/audit/rules.d/30-etc_group_usergroup_modification.rules
overwrite: true
- contents:
source: data:,-w%20/etc/gshadow%20-p%20wa%20-k%20audit_rules_usergroup_modification%0A
mode: 0644
path: /etc/audit/rules.d/30-etc_gshadow_usergroup_modification.rules
overwrite: true
- contents:
source: data:,-w%20/etc/security/opasswd%20-p%20wa%20-k%20audit_rules_usergroup_modification%0A
mode: 0644
path: /etc/audit/rules.d/30-etc_security_opasswd_usergroup_modification.rules
overwrite: true
- contents:
source: data:,-w%20/etc/passwd%20-p%20wa%20-k%20audit_rules_usergroup_modification%0A
mode: 0644
path: /etc/audit/rules.d/30-etc_passwd_usergroup_modification.rules
overwrite: true
- contents:
source: data:,-w%20/etc/shadow%20-p%20wa%20-k%20audit_rules_usergroup_modification%0A
mode: 0644
path: /etc/audit/rules.d/30-etc_shadow_usergroup_modification.rules
overwrite: true
" | oc apply -f -
done
Verify Red Hat Enterprise Linux CoreOS (RHCOS) generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/shadow".
Logging on as administrator, check the auditing rules in "/etc/audit/audit.rules" by executing the following:
for node in $(oc get node -oname); do oc debug $node -- chroot /host /bin/bash -c 'echo -n "$HOSTNAME: "; grep /etc/shadow /etc/audit/audit.rules /etc/audit/rules.d/*'; done
(Example output:
-w /etc/shadow -p wa -k identity)
If the command does not return a line, or the line is commented out, this is a finding.
V-257509
False
CNTR-OS-000050
Verify Red Hat Enterprise Linux CoreOS (RHCOS) generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/shadow".
Logging on as administrator, check the auditing rules in "/etc/audit/audit.rules" by executing the following:
for node in $(oc get node -oname); do oc debug $node -- chroot /host /bin/bash -c 'echo -n "$HOSTNAME: "; grep /etc/shadow /etc/audit/audit.rules /etc/audit/rules.d/*'; done
(Example output:
-w /etc/shadow -p wa -k identity)
If the command does not return a line, or the line is commented out, this is a finding.
M
5547