Ubuntu 22.04 LTS must generate audit records for successful/unsuccessful uses of the delete_module system call.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-260636 | UBTU-22-654170 | SV-260636r958446_rule | CCI-000172 | medium |
| Description | ||||
| Without generating audit records specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000477-GPOS-00222 | ||||
| STIG | Date | |||
| Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide | 2025-05-16 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AU-12
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.3.1
1.00
- DISA · 2 · 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 · 2 · 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-000172
1.00
- DISA · 2 · disa_xccdf · related
Details
Check Text (C-260636r958446_chk)
Verify Ubuntu 22.04 LTS generates an audit record for any successful/unsuccessful attempts to use the "delete_module" syscall by using the following command:
$ sudo auditctl -l | grep -w delete_module
-a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=-1 -F key=module_chng
-a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=-1 -F key=module_chng
If the command does not return a line that matches the example or the line is commented out, this is a finding.
Note: The "key=" value is arbitrary and can be different from the example output above.
Fix Text (F-64273r953720_fix)
Configure the audit system to generate an audit event for any successful/unsuccessful use of the "delete_module" syscall.
Add or modify the following lines in the "/etc/audit/rules.d/stig.rules" file:
-a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=unset -k module_chng
-a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=unset -k module_chng
To reload the rules file, issue the following command:
$ sudo augenrules --load
Note: The "-k <keyname>" at the end of the line gives the rule a unique meaning to help during an audit investigation. The <keyname> does not need to match the example above.