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V-66485

CAT II (Medium)

The Juniper SRX Services Gateway must implement logon roles to ensure only authorized roles are allowed to install software and updates.

Rule ID

SV-80975r1_rule

STIG

Juniper SRX SG NDM Security Technical Implementation Guide

Version

V1R3

CCIs

CCI-001812

Discussion

Allowing anyone to install software, without explicit privileges, creates the risk that untested or potentially malicious software will be installed on the system. This requirement applies to code changes and upgrades for all network devices. For example audit admins and the account of last resort are not allowed to perform this task.

Check Content

To verify role-based access control has been configured, view the settings for each login class defined.

[edit]
show system login

View all login classes to see which roles are assigned the "Maintenance" or "request system software add" permissions. 

If login classes for user roles that are not authorized to install and update software are configured, this is a finding.

Fix Text

Configure the Juniper SRX to allow only the ISSM user account (or administrators/roles appointed by the ISSM) to select which auditable events are to be audited. To ensure this is the case, each ISSM-appointed role on the AAA must be configured for least privilege using the following stanzas for each role.

[edit]
show system login

Use the delete command or retype the command to remove the permission "Maintenance" or "request system software add" from any class that is not authorized to upgrade software on the device. An explicitly Deny for the command "request system software add" can also be used if some Maintenance commands are permitted.