Details

In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know where events occurred, such as device hardware components, device software modules, session identifiers, filenames, host names, and functionality.

Associating information about where the event occurred within the network device provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured device.

Solution

Enable OAL as shown in the example below:

SW1(config)# logging ip access-list cache entries nnnn

Set the ‘log’ parameter after any ‘deny’ entries in the ACL as referenced in the check text above.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Cisco_NX-OS_Switch_Y21M10_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Audit and Accountability.This control applies to the following type of system Cisco.

References

• 800-53|AU-3
• CAT|II
• CCI|CCI-000132
• Rule-ID|SV-220484r604141_rule
• STIG-ID|CISC-ND-000290
• STIG-Legacy|SV-110617
• STIG-Legacy|V-101513
• Vuln-ID|V-220484

Source

• Tenable.com/audits