Detections
Analytics

UBTU-16-020590 - Successful/unsuccessful uses of the open command must generate an audit record - EACCES b64

Information

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

Solution

Configure the audit system to generate an audit event for any successful/unsuccessful use of the 'open' command.

Add or update the following rules in the '/etc/audit/audit.rules' file:

-a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access
-a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k perm_access

-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k perm_access
-a always,exit -F arch=b64 -S open -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

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_16-04_LTS_V2R3_STIG.zip

Item Details

Category: AUDIT AND ACCOUNTABILITY, MAINTENANCE

References: 800-53|AU-3, 800-53|AU-3(1), 800-53|AU-12a., 800-53|AU-12c., 800-53|MA-4(1)(a), CAT|II, CCI|CCI-000130, CCI|CCI-000135, CCI|CCI-000169, CCI|CCI-000172, CCI|CCI-002884, Rule-ID|SV-215081r610931_rule, STIG-ID|UBTU-16-020590, STIG-Legacy|SV-90423, STIG-Legacy|V-75743, Vuln-ID|V-215081

Plugin: Unix

Control ID: 2368d28378529beba96dcbb1c7bf2d9dcf2b5f03d1b5cbb2307f970d941c3d60