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The Juniper EX switch must be configured to implement cryptographic mechanisms using a FIPS 140-2/140-3 approved algorithm to protect the confidentiality of remote maintenance sessions.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-253929JUEX-NM-000520SV-253929r1167984_ruleCCI-003123high
Description
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. Use only CTR cipher block chaining modes in compliance with CVE-2008-5161, plugin 70658 based on vendor guidance in KB20853. This prevents certain plaintext attacks in OpenSSH.
STIGDate
Juniper EX Series Switches Network Device Management Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MNT-05.3Remote Maintenance Cryptographic Protection
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (26) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-2(4)Automated Audit Actions
1.00
AC-4Information Flow Enforcement
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-12Audit Record Generation
1.00
AU-3Content of Audit Records
1.00
AU-9(3)Cryptographic Protection
1.00
CM-5(1)Automated Access Enforcement and Audit Records
1.00
CM-6Configuration Settings
1.00

+16 more (top 10 by confidence shown)

CCI1 mapping
CCI-003123
1.00

Details

Check Text (C-253929r1167984_chk)

Review the network device configuration to determine if cryptographic mechanisms are implemented using a FIPS 140-2/FIPS 140-3 approved algorithm to protect the confidentiality of remote maintenance sessions. If using SNMPv3, verify (minimally) that authentication-sha is configured. Juniper devices also support authentication-sha224/256/384/512. Verify the strongest mutually supported HMAC between the network device and the Network Management Server (NMS) is configured. [edit system snmp] v3 { usm { local-engine { user <SNMPv3 user> { authentication-sha { authentication-key "PSK"; ## SECRET-DATA } } } } } Verify SSHv2 is configured for protocol V2 only, ciphers [ aes256-ctr ], key-exchange [ ecdh-sha2-nistp521 ecdh-sha2-nistp384 ecdh-sha2-nistp256 ], and macs [ hmac-sha2-512 hmac-sha2-256 ]. [edit system services ssh] : protocol-version v2; ciphers [ aes256-ctr]; macs [ hmac-sha2-512 hmac-sha2-256 ]; key-exchange [ ecdh-sha2-nistp521 ecdh-sha2-nistp384 ecdh-sha2-nistp256 ]; If the network device is not configured to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions using a FIPS 140-2/FIPS 140-3 approved algorithm, this is a finding.

Fix Text (F-57332r1167983_fix)

Configure the network device to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions using a FIPS 140-2/FIPS 140-3 approved algorithm. set snmp v3 usm local-engine user <SNMPv3 user> authentication-sha authentication-password "PSK" set snmp v3 usm local-engine user <SNMPv3 user> privacy-aes128 privacy-password "PSK" Note: Use the strongest HMAC mutually supported with the NMS (e.g., authentication-sha256, authentication-sha512) set system services ssh protocol-version v2 set system services ssh ciphers aes256-ctr set system services ssh macs hmac-sha2-512 set system services ssh macs hmac-sha2-256 set system services ssh key-exchange ecdh-sha2-nistp521 set system services ssh key-exchange ecdh-sha2-nistp384 set system services ssh key-exchange ecdh-sha2-nistp256