The Edge SWG must limit the number of concurrent management sessions to a maximum of three.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-279274SRG-APP-000001-NDM-000200SYME-ND-000810SV-279274r1172805_rule2025-12-181
Description
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.
ℹ️ Check
1. Log in to the Edge SWG SSH CLI. 2. Enter "show security". If under "Account", "Maximum number of administrative sessions allowed per user" does not say "3" or less, this is a finding.
✔️ Fix
1. Log in to the Edge SWG SSH CLI. 2. Enter "enable" and "configure terminal". 3. Enter "security management max-user-sessions 3" or less.