The Oracle Linux operating system must audit all uses of the unix_chkpwd command.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-221804 | OL07-00-030640 | SV-221804r958422_rule | CCI-000135 | medium |
| Description | ||||
| Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. When a user logs on, the auid is set to the uid of the account that is being authenticated. Daemons are not user sessions and have the loginuid set to -1. The auid representation is an unsigned 32-bit integer, which equals 4294967295. The audit system interprets -1, 4294967295, and "unset" in the same way. Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215 | ||||
| STIG | Date | |||
| Oracle Linux 7 Security Technical Implementation Guide | 2025-05-08 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AU-3(1)
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.3.1
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.3.2
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000135
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-221804r958422_chk)
Verify the operating system generates audit records when successful/unsuccessful attempts to use the "unix_chkpwd" command occur.
Check the file system rule in "/etc/audit/audit.rules" with the following command:
$ sudo grep -w "/usr/sbin/unix_chkpwd" /etc/audit/audit.rules
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd
If the command does not return any output, this is a finding.
Fix Text (F-23508r833051_fix)
Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "unix_chkpwd" command occur.
Add or update the following rule in "/etc/audit/rules.d/audit.rules":
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd
The audit daemon must be restarted for the changes to take effect.