1.29 CISC-ND-001200

Warning! Audit Deprecated

This audit has been deprecated and will be removed in a future update.

Information

The Cisco switch must be configured to use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of remote maintenance sessions.

GROUP ID: V-220503
RULE ID: SV-220503r1026073

Unapproved mechanisms used for authentication to the cryptographic module are not verified; therefore, they cannot be relied upon to provide confidentiality or integrity, and DOD data may be compromised.

Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the internet) or an internal network.

Currently, HMAC is the only FIPS-approved algorithm for generating and verifying message/data authentication codes in accordance with FIPS 198-1. Products that are FIPS 140-2 validated will have an HMAC that meets specification; however, the option must be configured for use as the only message authentication code used for authentication to cryptographic modules.

Separate requirements for configuring applications and protocols used by each application (e.g., SNMPv3, SSHv2, NTP, HTTPS, and other protocols and applications that require server/client authentication) are required to implement this requirement. Where SSH is used, the SSHv2 protocol suite is required because it includes Layer 7 protocols such as SCP and SFTP, which can be used for secure file transfers.

Solution

Configure SSH to use FIPS-validated HMAC for remote maintenance sessions as shown in the following example:

SSH Example

R1(config)#ssh macs hmac-sha2-256 hmac-sha2-512

Item Details

Audit Name: CIS Cisco NX OS Switch NDM STIG v1.0.0 CAT I

Category: MAINTENANCE

Plugin: Cisco

Control ID: fac60ff1faef66a19345609b41c437805562dea2e6daed1adf0d646c81f394b9

Detections

Analytics

1.29 CISC-ND-001200

Warning! Audit Deprecated

Information

Solution

See Also

Item Details