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Successful/unsuccessful uses of the truncate command must generate an audit record.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-215082 | UBTU-16-020600 | SV-215082r610931_rule | Medium |
| Description |
|---|
| Without generating audit records that are 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-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000062-GPOS-00031, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215 |
| STIG | Date |
|---|---|
| Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide | 2020-12-09 |
Details
| Check Text ( C-16281r285114_chk ) |
|---|
| Verify the Ubuntu operating system generates an audit record when successful/unsuccessful attempts to use the "truncate" command occur. Check that the following calls are being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules": # sudo grep -iw truncate /etc/audit/audit.rules -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k perm_access If the command does not return all lines, or the lines are commented out, this is a finding. |
| Fix Text (F-16279r285115_fix) |
|---|
| Configure the audit system to generate an audit event for any successful/unsuccessful use of the "truncate" command. Add or update the following rules in the "/etc/audit/audit.rules" file: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k perm_access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k perm_access The audit daemon must be restarted for the changes to take effect. To restart the audit daemon, run the following command: # sudo systemctl restart auditd.service |