Finding ID | Version | Rule ID | IA Controls | Severity |
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V-255947 | ARST-ND-000010 | SV-255947r882183_rule | Medium |
Description |
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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 must 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. |
STIG | Date |
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Arista MLS EOS 4.2x NDM Security Technical Implementation Guide | 2023-01-11 |
Check Text ( C-59623r882181_chk ) |
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Verify the device is configured to limit the number of concurrent management sessions with the following commands: switch#sh run | section management ssh management ssh connection limit 5 ! If the Arista network device is not configured to limit the number of SSH concurrent sessions, this is a finding. |
Fix Text (F-59566r882182_fix) |
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Configure the switch to limit SSH concurrent connections to the device with the following commands: switch#configure switch(config)#management ssh switch(config-mgmt-ssh)#connection limit 5 switch(config-mgmt-ssh)#exit switch#wr ! |