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The Juniper EX switch must be configured to terminate all sessions and network connections when nonlocal device maintenance is completed.

An XCCDF Rule

Description

<VulnDiscussion>If a device management session or connection remains open after management is completed, it may be hijacked by an attacker and used to compromise or damage the network device. Nonlocal device management 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. In the event the remote node has abnormally terminated or an upstream link from the managed device is down, the management session will be terminated, thereby freeing device resources and eliminating any possibility of an unauthorized user being orphaned to an open idle session of the managed device.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID
SV-253912r879621_rule
Severity
Medium
References
Updated



Remediation - Manual Procedure

Configure the network device to terminate all sessions and network connections when nonlocal device maintenance is completed.

set system services ssh client-alive-count-max <0..255>
set system services ssh client-alive-interval <0..65535 seconds>