For nonlocal maintenance sessions using SSH, the Juniper SRX Services Gateway must securely configured SSHv2 with privacy options to protect the confidentiality of maintenance and diagnostic communications for nonlocal maintenance sessions.
An XCCDF Rule
Description
<VulnDiscussion>To protect the confidentiality of nonlocal maintenance sessions when using SSH communications, SSHv2, AES ciphers, and key-exchange commands are configured. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. The SSHv2 protocol suite includes Layer 7 protocols such as SCP and SFTP which can be used for secure file transfers. The key-exchange commands limit the key exchanges to FIPS and DoD-approved methods.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-223227r961557_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure SSH confidentiality options to comply with DoD requirements.
[edit]
set system services ssh protocol-version v2
set system services ssh ciphers aes256-ctr
set system services ssh ciphers aes256-cbc