OS10-NDM-000390 - The Dell OS10 Switch must implement replay-resistant authentication mechanisms for network access to privileged accounts.

Information

A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be vulnerable to a replay attack.

An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message.

Techniques used to address this include protocols using nonces (e.g., numbers generated for a specific one-time use) or challenges (e.g., TLS, WS_Security). Additional techniques include time-synchronous or challenge-response one-time authenticators.

Solution

Configure the OS10 Switch to implement replay-resistant authentication mechanisms for network access to privileged accounts:

OS10(config)# crypto fips enable

WARNING: Upon committing this configuration, the system will regenerate SSH keys. Please consult documentation and toggle FIPS mode only if you know what you are doing!
Continue? [yes/no(default)]:yes
OS10(config)#

Disable telnet if it has been enabled:
OS10(config)# no ip telnet server enable

Enable SSH if it has been disabled:
OS10(config)# ip ssh server enable

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Dell_OS10_Switch_Y24M12_STIG.zip