CASA-VN-000450 - The Cisco ASA remote access VPN server must be configured to map the distinguished name (DN) from the client's certificate to entries in the authentication server to determine authorization to access the network - username-from-certificate

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Information

Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the individual user or group will not be available for forensic analysis.

This requirement only applies to components where this is specific to the function of the device or has the concept of a user (e.g., VPN or ALG). This does not apply to authentication for the purpose of configuring the device itself (i.e., device management).

Solution

Configure the ASA to map the distinguished name from the client's certificate to entries in the authentication server to determine authorization as shown in the example.

ASA2(config)# tunnel-group ANY_CONNECT general-attributes
ASA2(config-tunnel-general)# authorization-required
ASA2(config-tunnel-general)# authorization-server-group LDAP
ASA2(config-tunnel-general)# username-from-certificate username-from-certificate use-entire-name
ASA2(config-tunnel-general)# end

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Cisco_ASA_Y23M01_STIG.zip

Item Details

References: CAT|II, CCI|CCI-000187, Rule-ID|SV-239969r666313_rule, STIG-ID|CASA-VN-000450, Vuln-ID|V-239969

Plugin: Cisco

Control ID: b587376cfaae2f9140c13dfaa12dcd684ea60a2dd882f8807e59b9fbecf21be7