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 '$6$HgUcUoenDRGUHszC$EhZXnIFd./BxR5TEs/wXB/yU47lk7dArGAtXx2jinUdIArmrrceNwKL72niQ/FG3VpMpj94h82swvOQCazEPC1'

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=0.743 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.743/0.743/0.743/0.000 ms

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

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Permission denied, please try again.
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 v4.2.8.3

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

Last login: Thu Feb 12 17:09:48 2026 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 '$6$t8f1N4JQw8v21gIQ$rbOPdE4ZNX9xCnbt578zd8ct66XmHGZQUlyu3Y6.PmLbJWr4LXI2K4meOYU4RriFkb59X1y2I7L67RNB35Hdq1'

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=0.410 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.410/0.410/0.410/0.000 ms

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

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Permission denied, please try again.
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 v4.2.8.3

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

Last login: Thu Feb 12 17:10:40 2026 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 '$6$NnI4yNiLelV5J3F7$9Acfn5dnBy2lDacBJSF5yV23WKLaN/DYbs8usp1yj8I/wMp0p4FEPI3c8R1./u30BQ3WJDb1edi35ykW7y0aU0'
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=0.532 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.532/0.532/0.532/0.000 ms

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

admin@DUT1$ ssh test_user@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Permission denied, please try again.
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 v4.2.8.3

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

Last login: Thu Feb 12 17:11:18 2026 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 '$6$F.Nprp0xes7biTu7$/sjgevzCzXM4SMnBYIRx5TY2hjI5O2t9.3BTGSHaaiCeO6NZ9ZAL.hH5G.cEvKoJLeBePNAv6bhgim1eT69Zt0'
set system login user test_user role test_role
set system login user test_user2 authentication encrypted-password '$6$dxSRonvZP5OkoghH$2Qd/Ux31Di2qyB56zsZAuNi6K5C7RdVoJTXksGVgN4Q4DvkVwgik1ouXfJRwSHxb4GlfngrLJOe3eWIGE81Qs/'
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=0.819 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.819/0.819/0.819/0.000 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 v4.2.8.3

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 which is going to fail:

admin@DUT1$ ssh test_user2@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
Permission denied, please try again.
test_user2@10.215.168.20's password: