Detections
Analytics
PHTN-40-000007 - The Photon operating system must limit the number of concurrent sessions to ten for all accounts and/or account types.
Information
Operating system management includes the ability to control the number of users and user sessions that utilize an operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to Denial of Service (DoS) attacks.This requirement addresses concurrent sessions for information system accounts and does not address concurrent sessions by single users via multiple system accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system.
Solution
Navigate to and open:/etc/security/limits.conf
Add or update the following line:
* hard maxlogins 10
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y24M08_STIG.zip
Item Details
Category: ACCESS CONTROL
References: 800-53|AC-10, CAT|III, CCI|CCI-000054, Rule-ID|SV-258804r958398_rule, STIG-ID|PHTN-40-000007, Vuln-ID|V-258804
Plugin: Unix
Control ID: fd7c2d3e6cebab5e61b5ef409c47dc73d86193cccf334bb8f8c7716e5852dc7e