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Ubuntu 22.04 LTS must use strong authenticators in establishing nonlocal maintenance and diagnostic sessions.

An XCCDF Rule

Description

<VulnDiscussion>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. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID
SV-260534r958510_rule
Severity
Medium
References
Updated



Remediation - Manual Procedure

Configure Ubuntu 22.04 LTS to use strong authentication when establishing nonlocal maintenance and diagnostic sessions.   
  
Add or modify the following line to /etc/ssh/sshd_config:  
  
UsePAM yes