Details

Call home services will routinely send data such as configuration and diagnostic information to the vendor for routine or emergency analysis and troubleshooting. There is a risk that transmission of sensitive data sent to unauthorized persons could result in data loss or downtime due to an attack.

Solution

Disable the call home feature as shown below:

SW1(config)#no call-home

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Cisco_IOS_Switch_Y21M07_STIG.zip

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

References

• 800-53|SC-7(11)
• CAT|II
• CCI|CCI-002403
• Rule-ID|SV-220470r622190_rule
• STIG-ID|CISC-RT-000080
• STIG-Legacy|SV-110699
• STIG-Legacy|V-101595
• Vuln-ID|V-220470

Source

• Tenable.com/audits