The Juniper router must be configured to prohibit installation of software without explicit privileged status.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-91161	JUNI-ND-001060	SV-101261r1_rule		Medium

Description
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.

STIG	Date
Juniper Router NDM Security Technical Implementation Guide	2018-11-14

Details

Check Text ( C-90315r2_chk )
Review the router configuration to verify that it is compliant with this requirement. The configuration example below depicts a class JR_ENGINEER that is not permitted to add or change software installed on the router. login { class JR_ENGINEER { permissions all; deny-commands "request system software"; } Note: The following are the options under request system software: abort -Abort software upgrade add -Add extension or upgrade package delete -Remove extension or upgrade package rollback -Roll back to previous set of packages validate -Verify package compatibility with current configuration If the router is not configured to prohibit installation of software without explicit privileged status, this is a finding.

Check Text ( C-90315r2_chk )

Review the router configuration to verify that it is compliant with this requirement. The configuration example below depicts a class JR_ENGINEER that is not permitted to add or change software installed on the router.

login {
class JR_ENGINEER {
permissions all;
deny-commands "request system software";
}

Note: The following are the options under request system software:
abort -Abort software upgrade
add -Add extension or upgrade package
delete -Remove extension or upgrade package
rollback -Roll back to previous set of packages
validate -Verify package compatibility with current configuration

If the router is not configured to prohibit installation of software without explicit privileged status, this is a finding.

Fix Text (F-97359r2_fix)
Configure one or more classes as shown in the example below whose users will not be permitted to add or change software installed on the router. [edit system] set login class JR_ENGINEER permissions all set login class JR_ENGINEER deny-commands “(request system software)” Note: The predefined classes operator and Read-only do not have permissions to install software.