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 '$6$b2J8Y30PXqMvu8BV$kcPKiFloxb7qIKR38cZPR4/Brt4n40phHz7OzSHEjWff9ksmEV61si4EBAyBVGbSNMyXi1EsvRe9RQcJhOCNQ.'

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=0.325 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.325/0.325/0.325/0.000 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 v4.2.6.1

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

Last login: Tue Jun 24 14:16:19 2025 from 11::3
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 '$6$P35vh6T3.UZz9SsW$ALgw9o9uWLFX/wXu0Bt61VJfu5mG36xXK1aet8eIMhsj7G7hN8WCd26/y/rJWWSkWofCYjQoLmkB6QjvXKtGT.'

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=0.347 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.347/0.347/0.347/0.000 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 v4.2.6.1

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

Last login: Tue Jun 24 14:16:55 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 '$6$o/PJKz.l9dX9bpSk$/3WqccRCstOowRLLVBiqB0q7RpxJYovGspblxBvX07Ah82k3y.ym902W65VeeVDUp/Dhft3kWmKZZK0ZRDD211'
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=0.348 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.348/0.348/0.348/0.000 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 v4.2.6.1

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

Last login: Tue Jun 24 14:17:34 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 '$6$WP221rkBRex6e9xH$EUec3vnofw7LCU3AVYZWhUE/.wRgvc9YEuUFYwrqww4IopibL5xQs1eSN5GJvljE5L3TzTh5Sg1k40Q7BCBaN/'
set system login user test_user role test_role
set system login user test_user2 authentication encrypted-password '$6$kER/lpx.eJ.49nuY$nko6s8rbAtQxceHFYKRAHdE78AqK.xounh.V9StQt2e/u4VBHKnOKO6//qHAiYKNSkaQKwg9uS8tzT4rPzcUI0'
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=0.310 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.310/0.310/0.310/0.000 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 v4.2.6.1

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: