If the Arista network device uses role-based access control, the network device must enforce organization-defined role-based access control policies over defined subjects and objects.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-255957	ARST-ND-000550	SV-255957r882213_rule		Medium

Description
Organizations can create specific roles based on job functions and the authorizations (i.e., privileges) to perform needed operations on organizational information systems associated with the organization-defined roles. When administrators are assigned to the organizational roles, they inherit the authorizations or privileges defined for those roles. Role-based access control (RBAC) simplifies privilege administration for organizations because privileges are not assigned directly to every administrator (which can be a significant number of individuals for mid- to large-size organizations) but are instead acquired through role assignments. RBAC can be implemented either as a mandatory or discretionary form of access control. The RBAC policies and the subjects and objects are defined uniquely for each network device, so they cannot be specified in the requirement. Satisfies: SRG-APP-000329-NDM-000287, SRG-APP-000380-NDM-000304

Description

Organizations can create specific roles based on job functions and the authorizations (i.e., privileges) to perform needed operations on organizational information systems associated with the organization-defined roles. When administrators are assigned to the organizational roles, they inherit the authorizations or privileges defined for those roles. Role-based access control (RBAC) simplifies privilege administration for organizations because privileges are not assigned directly to every administrator (which can be a significant number of individuals for mid- to large-size organizations) but are instead acquired through role assignments. RBAC can be implemented either as a mandatory or discretionary form of access control. The RBAC policies and the subjects and objects are defined uniquely for each network device, so they cannot be specified in the requirement. Satisfies: SRG-APP-000329-NDM-000287, SRG-APP-000380-NDM-000304

STIG	Date
Arista MLS EOS 4.2x NDM Security Technical Implementation Guide	2023-01-11

Details

Check Text ( C-59633r882211_chk )
Determine if the network device enforces role-based access control policy over defined subjects and objects. This requirement may be met through use of a properly configured authentication server. Note: If not using role-based access for the network device, this check is Not Applicable. Step 2: Verify the Arista network device configured AAA servers are synchronized for all role-based authentication access control structure defined by role types and user-defined control policies over defined subjects and objects. switch(config)#show running-config \| section role role network-admin 10 permit command .* ! role operator 10 permit command show running-config [all\|detail] sanitized 20 deny command >\|>>\|extension\|\\|\|session\|do\|delete\|copy\|rmdir\|mkdir\|python-shell\|bash\|platform\|scp\|append\|redirect\|tee\|more\|less\|who\|show run.* 30 deny mode config command (no \|default )?(username\|role\|aaa\|tcpdump\|schedule\|event.) 40 permit command . ! role tester 10 permit command show running-config [all\|detail] sanitized 20 deny command >\|>>\|extension\|\\|\|session\|do\|delete\|copy\|rmdir\|mkdir\|python-shell\|bash\|platform\|scp\|append\|redirect\|tee\|more\|less\|who\|show run.* 30 deny mode config command (no \|default )(username\|role\|aaa\|tcpdump\|schedule\|event.) 40 permit command . If role-based access control policy is not enforced over defined subjects and objects, this is a finding.

Check Text ( C-59633r882211_chk )

Determine if the network device enforces role-based access control policy over defined subjects and objects. This requirement may be met through use of a properly configured authentication server.

Note: If not using role-based access for the network device, this check is Not Applicable.

Step 2: Verify the Arista network device configured AAA servers are synchronized for all role-based authentication access control structure defined by role types and user-defined control policies over defined subjects and objects.

switch(config)#show running-config | section role

role network-admin
10 permit command .*
!
role operator
10 permit command show running-config [all|detail] sanitized
20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.*
30 deny mode config command (no |default )?(username|role|aaa|tcpdump|schedule|event.*)
40 permit command .*
!
role tester
10 permit command show running-config [all|detail] sanitized
20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.*
30 deny mode config command (no |default )(username|role|aaa|tcpdump|schedule|event.*)
40 permit command .*

If role-based access control policy is not enforced over defined subjects and objects, this is a finding.

Fix Text (F-59576r882212_fix)
Configure the network device and its associated authentication server to enforce role-based access control policy over defined subjects and objects. switch(config)# role network-admin 10 permit command .* ! role operator 10 permit command show running-config [all\|detail] sanitized 20 deny command >\|>>\|extension\|\\|\|session\|do\|delete\|copy\|rmdir\|mkdir\|python-shell\|bash\|platform\|scp\|append\|redirect\|tee\|more\|less\|who\|show run.* 30 deny mode config command (no \|default )?(username\|role\|aaa\|tcpdump\|schedule\|event.) 40 permit command . ! role tester 10 permit command show running-config [all\|detail] sanitized 20 deny command >\|>>\|extension\|\\|\|session\|do\|delete\|copy\|rmdir\|mkdir\|python-shell\|bash\|platform\|scp\|append\|redirect\|tee\|more\|less\|who\|show run.* 30 deny mode config command (no \|default )(username\|role\|aaa\|tcpdump\|schedule\|event.) 40 permit command .

Fix Text (F-59576r882212_fix)

Configure the network device and its associated authentication server to enforce role-based access control policy over defined subjects and objects.

switch(config)#
role network-admin
10 permit command .*
!
role operator
10 permit command show running-config [all|detail] sanitized
20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.*
30 deny mode config command (no |default )?(username|role|aaa|tcpdump|schedule|event.*)
40 permit command .*
!
role tester
10 permit command show running-config [all|detail] sanitized
20 deny command >|>>|extension|\||session|do|delete|copy|rmdir|mkdir|python-shell|bash|platform|scp|append|redirect|tee|more|less|who|show run.*
30 deny mode config command (no |default )(username|role|aaa|tcpdump|schedule|event.*)
40 permit command .*