Check: JUEX-NM-000640
Juniper EX Series Switches Network Device Management STIG:
JUEX-NM-000640
(in versions v1 r5 through v1 r1)
Title
The Juniper EX switch must be configured to use an authentication server for the purpose of authenticating users prior to granting administrative access. (Cat I impact)
Discussion
Centralized management of authentication settings increases the security of remote and nonlocal access methods. This control is particularly important protection against the insider threat. With robust centralized management, audit records for administrator account access to the organization's network devices can be more readily analyzed for trends and anomalies. The alternative method of defining administrator accounts on each device exposes the device configuration to remote access authentication attacks and system administrators with multiple authenticators for each network device.
Check Content
Review the network device configuration to verify the device is configured to use an authentication server as the primary source for authentication. Verify the RADIUS and/or TACACS+ server addresses. [edit system] radius-server { <RADIUS-1 address> secret "hashed PSK"; ## SECRET-DATA <RADIUS-2 address> secret "hashed PSK"; ## SECRET-DATA } tacplus-server { <TACPLUS-1 address> secret "hashed PSK"; ## SECRET-DATA <TACPLUS-2 address> secret "hashed PSK"; ## SECRET-DATA } Verify the authentication order places the external authentication server first. [edit system] authentication-order [ radius tacplus password ]; Note: Only the global authentication order is required; all administrative access methods will honor the global setting unless configured separately. If the network device is not configured to use an authentication server to authenticate users prior to granting administrative access, this is a finding.
Fix Text
Configure the network device to use an authentication server. set system radius-server <RADIUS-1 address> secret "<PSK>" set system tacplus-server <TACPLUS-1 address> secret "<PSK>" Configure the authentication order to use the authentication server as primary source for authentication. set system authentication-order radius set system authentication-order tacplus set system authentication-order password
Additional Identifiers
Rule ID: SV-253941r916111_rule
Vulnerability ID: V-253941
Group Title: SRG-APP-000516-NDM-000336
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
The organization implements the security configuration settings. |
| CCI-000370 |
The organization employs automated mechanisms to centrally manage configuration settings for organization-defined information system components. |