Details

This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryptographic mechanisms) are used for sessions, the contents of those sessions will be susceptible to eavesdropping, potentially putting sensitive data (including administrator passwords) at risk of compromise and potentially allowing hijacking of maintenance sessions.

Solution

Configure the router to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions using a FIPS 140-2 approved algorithm as shown in the example below.

[edit system services]
set ssh ciphers aes128-cbc

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_Router_Y21M02_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Maintenance.This control applies to the following type of system Juniper.

References

• 800-53|MA-4(6)
• CAT|I
• CCI|CCI-003123
• Rule-ID|SV-101271r1_rule
• STIG-ID|JUNI-ND-001200
• Vuln-ID|V-91171

Source

• Tenable.com/audits