The Juniper EX switch must be configured to limit the number of concurrent management sessions to 10 or less.

Description

<VulnDiscussion>Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator based on account type, role, or access type is helpful in limiting risks related to denial of service (DoS) attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system. At a minimum, limits must be set for SSH, HTTPS, account of last resort, and root account sessions. Juniper switches apply session limits per access method (e.g., web management, SSH), which means the limit is applicable to local, remote, and root account sessions. Some services, like SSH and NETCONF, also support connection rate-limiting. Connection rate limiting is the number of connections per one minute interval. Unconfigured management access methods are disabled. For instance, if there is no [edit system services ssh] stanza, that service is unavailable and a connection-limit should not be configured because that will enable the service.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>