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Status Under review
Workspace IBM i
Categories Work Management and Messaging
Created by Guest
Created on May 7, 2025

RELATED IDEAS

Restrict Powerdown system command to run from Interactive environment

The PWRDWNSYS command is utilized within the environment to either shut down or restart the partition as necessary. This process is overseen by the technicians responsible for maintaining the platform. However, I have observed a potential security vulnerability, as this command can be executed from a standard interactive session. In contrast, the end all subsystems command is restricted from being used in an interactive session, and I believe the PWRDWNSYS command should adhere to the same restrictions. It is generally unwise to restart the partition without first terminating all subsystems. From my perspective, I can identify the following rationale for implementing this change:

  1. There may be a security vulnerability, as the system can be shut down through a standard session. In the event of an unauthorized intrusion, there is a risk that the system could be compromised.

  2. All subsystems must be terminated before initiating the IPL process, and the ENDBS command is permitted solely from the controlling subsystem. Therefore, the PWRDWNSYS command should adhere to the same secure protocol which is secure.

Idea priority High
  • Guest
    Jun 18, 2025

    Yes , exit program can be implemented for almost all the services running on IBM i. But the idea here is to restrict this powerful command to run from normal interactive session. Similar to end all subsystem command it should also be restricted to the console usage only. System administrators normally login to console sessions when doing maintenance and restarting the partitions so what's the point of granting access to shutdown/restart command from the server under normal session.


    Reply
  • Guest
    Jun 12, 2025
    The Power Down System exit program could be used to determine if the command issuer is running on the console and (optionally) cancel the request.
    https://www.ibm.com/docs/api/v1/content/ssw_ibm_i_76/apis/xpwrdwn.htm
    Reply

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