The Juniper SRX Services Gateway must implement replay-resistant authentication mechanisms for network access to privileged accounts.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-223216 | JUSX-DM-000124 | SV-223216r960993_rule | CCI-001941 | medium |
| Description | ||||
| A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be vulnerable to a replay attack. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. There are 2 approved methods for accessing the Juniper SRX which are, in order of preference, the SSH protocol and the console port. | ||||
| STIG | Date | |||
| Juniper SRX Services Gateway NDM Security Technical Implementation Guide | 2024-12-20 | |||
Details
Check Text (C-223216r960993_chk)
Verify SSH is configured to use a replay-resistant authentication mechanism.
[edit]
show system services ssh
If SSH is not configured to use the MAC authentication protocol, this is a finding.
Fix Text (F-24877r513336_fix)
Configure SSH to use a replay-resistant authentication mechanism. The following is an example stanza.
[edit]
set system services ssh macs hmac-sha2-512
set system services ssh macs hmac-sha2-256
set system services ssh macs hmac-sha1
set system services ssh macs hmac-sha1-96