Details

Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.

Organizations consider limiting the additional audit information to only that information explicitly needed for specific audit requirements. The additional information required is dependent on the type of information (i.e., sensitivity of the data and the environment within which it resides). At a minimum, the organization must audit full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.

Solution

Configure the Cisco router to log all configuration changes as shown in the example below.

R4(config)#archive
R4(config-archive)#log config
R4(config-archive-log-cfg)#logging enable
R4(config-archive-log-cfg)#end

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Cisco_IOS-XE_Router_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(1)
• CAT|II
• CCI|CCI-000135
• Rule-ID|SV-215819r531083_rule
• STIG-ID|CISC-ND-000330
• STIG-Legacy|SV-105365
• STIG-Legacy|V-96227
• Vuln-ID|V-215819

Source

• Tenable.com/audits