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V-281158

CAT II (Medium)

RHEL 10 must generate audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd".

Rule ID

SV-281158r1273587_rule

STIG

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Version

V1R3

CCIs

CCI-000018 CCI-000130 CCI-000135 CCI-000169 CCI-000015 CCI-002884 CCI-000172 CCI-001403 CCI-001404 CCI-001405 CCI-002130

Discussion

In addition to auditing new user and group accounts, these watches will alert the system administrator(s) to any modifications. Any unexpected users, groups, or modifications should be investigated for legitimacy. Satisfies: SRG-OS-000004-GPOS-00004, SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000062-GPOS-00031, SRG-OS-000304-GPOS-00121, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000470-GPOS-00214, SRG-OS-000471-GPOS-00215, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000303-GPOS-00120, SRG-OS-000466-GPOS-00210, SRG-OS-000476-GPOS-00221

Check Content

Verify RHEL 10 generates audit records for modifications to "/etc/security/opasswd" with the following command:

$ sudo auditctl -l | grep '/etc/security/opasswd'

-a always,exit -F arch=b32 -F path=/etc/security/opasswd -F perm=wa -F key=identity
-a always,exit -F arch=b64 -F path=/etc/security/opasswd -F perm=wa -F key=identity

If the command does not return these lines, or the lines are commented out, this is a finding.

Fix Text

Configure RHEL 10 to generate audit records for all modifications to "/etc/security/opasswd" by adding or updating the following rules in "/etc/audit/rules.d/identity.rules":

-a always,exit -F arch=b32 -F path=/etc/security/opasswd -F perm=wa -k identity
-a always,exit -F arch=b64 -F path=/etc/security/opasswd -F perm=wa -k identity

To load the rules to the kernel immediately, use the following command:

$ sudo augenrules --load