The Cisco router must be configured to limit the number of concurrent management sessions to an organization-defined number.
An XCCDF Rule
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.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215807r879511_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the router to limit the number of concurrent management sessions to an organization-defined number as shown in the example below.
R4(config)#ip http max-connections 2
R4(config)#line vty 0 1
R4(config-line)#transport input ssh
R4(config-line)#exit