Detections
Analytics

1.111 AZLX-23-002205

Information

Amazon Linux 2023 must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd.

GROUP ID: V-274104RULE ID: SV-274104r1120300

Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes.

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, SRG-OS-000274-GPOS-00104, SRG-OS-000275-GPOS-00105, SRG-OS-000276-GPOS-00106, SRG-OS-000277-GPOS-00107

Solution

Configure Amazon Linux 2023 to generate audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd".

Enable the auditd daemon so that it can start at boot time:

$ sudo systemctl enable auditd

Add or update the following file system rule to "/etc/audit/rules.d/audit.rules":-w /etc/passwd -p wa -k identity

Then, restart the auditd service for the changes to take effect:

$ sudo service auditd restart

See Also

https://workbench.cisecurity.org/benchmarks/26107

Item Details

Category: ACCESS CONTROL, AUDIT AND ACCOUNTABILITY, MAINTENANCE

References: 800-53|AC-2(1), 800-53|AC-2(4), 800-53|AU-3, 800-53|AU-3(1), 800-53|AU-12a., 800-53|AU-12c., 800-53|MA-4(1), CAT|II, CCI|CCI-000015, CCI|CCI-000018, CCI|CCI-000130, CCI|CCI-000135, CCI|CCI-000169, CCI|CCI-000172, CCI|CCI-001403, CCI|CCI-001404, CCI|CCI-001405, CCI|CCI-002130, CCI|CCI-002884, Rule-ID|SV-274104r1120300_rule, STIG-ID|AZLX-23-002205, Vuln-ID|V-274104

Plugin: Unix

Control ID: e35561f74053cc055bdef33962dd54a34311f1cd76cb610c983fb30f09be86f8