Detections
Analytics
OS10-NDM-000490 - The Dell OS10 Switch, for PKI-based authentication, must be configured to map validated certificates to unique user accounts.
Information
Without mapping the PKI certificate to a unique user account, the ability to determine the identities of individuals or the status of their nonrepudiation is considerably impacted during forensic analysis. A strength of using PKI as multifactor authentication (MFA) is that it can help ensure only the assigned individual is using their associated user account. This can only be accomplished if the network device is configured to enforce the relationship which binds PKI certificates to unique user accounts.Local accounts (accounts created, stored, and maintained locally on the network device) should be avoided in lieu of using a centrally managed directory service. Local accounts empower the same workgroup who will be operating the network infrastructure to also control and manipulate access methods, thus creating operational autonomy. This undesirable approach breaks the concept of separation of duties. Additionally, local accounts are susceptible to poor cyber hygiene because they create another user database that must be maintained by the operator, whose primary focus is on running the network. Such examples of poor hygiene include dormant accounts that are not disabled or deleted, employees who have left the organization but whose accounts are still present, periodic password and hash rotation, password complexity shortcomings, increased exposure to insider threat, etc. For reasons such as this, local users on network devices are frequently the targets of cyber-attacks. Instead, organizations should explore examples of centrally managed account services. These examples include the implementation of AAA concepts like the use of external RADIUS and LDAP directory service brokers.
Solution
Configure the OS10 Switch to use DOD PKI as MFA for interactive logins. Configure a named security profile to use for MFA. Configure the SSH server to enable authentication by PKI certificate.OS10(config)#
OS10(config)# crypto security-profile <profile-name>
OS10(config-sec-profile)# certificate <host-certificate-name>
OS10(config-sec-profile)# peer-name-check
OS10(config-sec-profile)# ocsp-check <ocsp-url>
OS10(config-sec-profile)# exit
OS10(config)#
OS10(config)# ip ssh server x509v3-authentication security-profile <profile-name>
OS10(config)#
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Dell_OS10_Switch_Y24M12_STIG.zip
Item Details
Audit Name: DISA Dell OS10 Switch NDM STIG v1r1
Category: AUDIT AND ACCOUNTABILITY, IDENTIFICATION AND AUTHENTICATION
References: 800-53|AU-10, 800-53|IA-2, 800-53|IA-5(2)(c), CAT|I, CCI|CCI-000166, CCI|CCI-000187, CCI|CCI-000764, Rule-ID|SV-269787r1052488_rule, STIG-ID|OS10-NDM-000490, Vuln-ID|V-269787
Plugin: Dell_OS10
Control ID: 3eb6371ec1215af74104cc9fea68735276ca698d184dc3a7c2ad8a0e8be7720f