The Juniper SRX Services Gateway must specify the order in which authentication servers are used.

From Juniper SRX SG NDM Security Technical Implementation Guide

Part of SRG-APP-000516-NDM-000338

Associated with: CCI-000366 CCI-000372

SV-81087r1_rule The Juniper SRX Services Gateway must specify the order in which authentication servers are used.

Vulnerability discussion

Specifying an authentication order implements an authentication, authorization, and accounting methods list to be used, thus allowing the implementation of redundant or backup AAA servers. These commands also ensure that a default method or order will not be used by the device (e.g., local passwords).The Juniper SRX must specify the order in which authentication is attempted by including the authentication-order statement in the authentication server configuration. Remote logon using password results in a CAT 1 finding (CCI-000765) for failure to use two-factor authentication. Thus, if the account of last resort uses only password authentication, this configuration prevents remote access. DoD policy is that redundant AAA servers are required to mitigate the risk of a failure of the primary AAA device.

Check content

Verify a RADIUS or TACACS+ server order has been configured. From operational mode enter the command: show system authentication-order If the authentication-order for either or both RADIUS or TACACS+ server order has not been configured, this is a finding. If the authentication-order includes the password method, this is a finding.

Fix text

Add an external RADIUS or TACACS+ server, and specify the port number and shared secret of the server. Remote logon using password results in a CAT 1 finding (CCI-000765) for failure to use two-factor authentication. Thus, if the account of last resort uses only password authentication, this configuration prevents remote access. DoD policy is that redundant AAA servers are required to mitigate the risk of a failure of the primary AAA device. [edit] set system authentication-order tacplus or [edit] set system authentication-order radius From operational mode enter the command: show system authentication-order If password is set as an option, remove this command from the configuration. [edit] delete system authentication-order password

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