V-230144

Discussion

Without re-authentication, users may access resources or perform tasks for which they do not have authorization. In addition to the re-authentication requirements associated with session locks, organizations may require re-authentication of individuals and/or devices in other situations, including (but not limited to) the following circumstances: (i) When authenticators change; (ii) When roles change; (iii) When security categories of information systems change; (iv) When the execution of privileged functions occurs; (v) After a fixed period of time; or (vi) Periodically. Within the DoD, the minimum circumstances requiring re-authentication are privilege escalation and role changes. This requirement only applies to components where this is specific to the function of the device or has the concept of user authentication (e.g., VPN or ALG capability). This does not apply to authentication for the purpose of configuring the device itself (i.e., device management).

Check Content

This requirement only applies to devices required to employ 802.1X.

Verify the Arista Multilayer Switch re-authenticates 802.1X connected devices every hour. If the Arista Multilayer Switch does not re-authenticate 802.1X connected devices, this is a finding.

This can be viewed via the "show dot1x all" command. Under the interface configuration for the .1X connected port, the following statements must be present:

ReauthPeriod : 3600 seconds

If the device does not require re-authentication, or if the re-authentication period is longer than 60 minutes, this is a finding.