Ssh Access Control

Test suite for validating SSH access control options

SSH User Deny

Description

Check that enforcing a user denial will work as expected. Test_user is set to be denied through SSH connection, then a connection through this user is tried expecting failure to connect. Admin user that hasn’t been denied is also tested to confirm unchanged behavior in this case.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh access-control deny user test_user
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system login user test_user authentication encrypted-password '$6$VCgs3BdlqrpCxUVr$HPz7dX0LfHtgDpTmjRk.F8eCG7XKpbkCZdd4V1u1mDSpNw8BcpxL5pxGzK.DXuDwVuMcUSbBY97lbXZjrt8Uq1'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.365 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.365/0.365/0.365/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user test_user:

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
test_user@10.215.168.20's password:

Step 5: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user admin:

admin@DUT1$ ssh admin@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
admin@10.215.168.20's password:
Welcome to Teldat OSDx v4.2.5.0

This system includes free software.
Contact Teldat for licenses information and source code.

Last login: Tue May 13 16:57:00 2025 from 10.215.168.21
admin@osdx$

SSH User Allow

Description

Check that allowing a user will only let that user connect to the device. Test_user is set to be unallowed through SSH connection, then a connection through this user is tried expecting to connect unsuccessfully. The next step will try a SSH connection through Admin which is the allowed user, then the connection is succesfull.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh access-control allow user admin
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system login user test_user authentication encrypted-password '$6$nFIkkq4ZC96roYy2$D5CRW7KZOQkNQW5IDSjxXAMGjOBVToyL7zSDRx9.g2kfapJ7m25b/4Yqi/a4Mh3AC2/z1pXq6PHEIzelWLLRo.'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.363 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.363/0.363/0.363/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user test_user:

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
test_user@10.215.168.20's password:

Step 5: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user admin:

admin@DUT1$ ssh admin@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
admin@10.215.168.20's password:
Welcome to Teldat OSDx v4.2.5.0

This system includes free software.
Contact Teldat for licenses information and source code.

Last login: Tue May 13 16:57:38 2025 from 10.215.168.21
admin@osdx$

SSH Role Deny

Description

Check that enforcing a role denial will work as expected. Test_user and test_role are created and then the role is assigned to the user. The role is set to be unallowed through SSH connection, then a connection through this user is tried expecting a failure. The admin user is also tried to ensure that users that haven’t been denied can still access the router.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh access-control deny role test_role
set system login role test_role level 14
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system login user test_user authentication encrypted-password '$6$zI5tLscqzyzoi7Sn$HQJtFXNY3MqpIi19iWpBsvoqeFo3p/bKobQXLarEUHpyLez1xwUfy30cGBgJKiJChDSel8ZI5DNfh56IPnOPD/'
set system login user test_user role test_role

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.235 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.235/0.235/0.235/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user test_user:

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
test_user@10.215.168.20's password:

Step 5: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user admin:

admin@DUT1$ ssh admin@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
admin@10.215.168.20's password:
Welcome to Teldat OSDx v4.2.5.0

This system includes free software.
Contact Teldat for licenses information and source code.

Last login: Tue May 13 16:58:16 2025 from 10.215.168.21
admin@osdx$

SSH Role Allow

Description

Check that enforcing a role permission will work as expected. Two users and two roles are created. The roles are assigned to each of the users. Test_role is then allowed and an SSH connection is tried with the test_user assigned that role, expecting to succeed. Test_user2 is tried to ensure the deny by default behavior once an allow is set.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh access-control allow role test_role
set system login role test_role level 14
set system login role test_role2 level 13
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set system login user test_user authentication encrypted-password '$6$W596j.F4T7qCuRRo$cezNKnBZGMm3xESUUNJkqIJ2Cu2JEa2PKwSf8eFdlHV6XhWTMhcUJYUM9zaP1kQqQIvTKrxKPs4KmAeC8JLKC1'
set system login user test_user role test_role
set system login user test_user2 authentication encrypted-password '$6$YNJ1HHBiS2GWQMJL$v/koHZ9vSxecw2ca7GyPoQ0cBRhnBem40cwhtq.RuWPsGtwXCtIbvm1JVSnB.HuH4jhklmw3fdC.Eb/CNwDLK.'
set system login user test_user2 role test_role2

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.352 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.352/0.352/0.352/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user test_user:

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
test_user@10.215.168.20's password:
Welcome to Teldat OSDx v4.2.5.0

This system includes free software.
Contact Teldat for licenses information and source code.

test_user@osdx$

Step 5: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user test_user2:

admin@DUT1$ ssh test_user2@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Warning: Permanently added '10.215.168.20' (ECDSA) to the list of known hosts.
test_user2@10.215.168.20's password: