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Status Not under consideration
Workspace IBM i
Categories IBM i Access Family
Created by Guest
Created on May 4, 2022

ACS - a security breach -- no way to log off requiring new credentials to be entered

One of my colleagues recently discovered a security breach i ACS. He was giving a user support in ACS and was the first to log on. The setting regarding passwords in ACS was "use shared credentials" ( roughly translated from our native language ). After finishing he suddently realised that the user could start additional sessions with his credentials thus gaining administrator rights !!! There were no way to log off. He had to restart the PC. The same thing happens for Printer output and probably for other options too.

There should be a way to log off so the credentials should be entered again like the first time you log on.

Idea priority High
  • Guest
    May 23, 2022

    A not-well-documented easter egg is to locate your acsbundle.jar file and run the following from command line:

    java -jar acsbundle.jar /plugin=maint /clearpwcaches /killdaemon

    (could be scripted also)

  • Guest
    May 9, 2022

    So this only leave me with option 1 that is almost equal to restarting the PC.

    Option 2 and 3 are not possible due to restrictions.

  • Guest
    May 4, 2022
    Thank you for submitting your Idea to enhance IBM i Access Client Solutions (ACS). Users do not log in to ACS. They log in to an IBM i partition when making a connection. For convenience, ACS provides a variety of ways to handle credentials when connecting to an IBM i partition. This gives the user options from entering their credentials for each connection or sharing them between connections. These are the options available today on the Connection tab for each System Configuration:
    1. Use shared credentials
    2. Use default user name to prompt once for each system (this is the default)
    3. Prompt for user name and password every time
    4. Use Kerberos authentication; do not prompt

    The option chosen will determine how ACS caches credentials for future connections. The option you choose should be chosen thoughtfully based on how a particular ACS session will be used. In the reported case, you basically had multiple users sharing the same ACS session. There are multiple ways to resolve the issue.
    Option 1: Log the user out of the PC session and log back in. This will reset any saved credentials.
    Option 2: Set all partitions to ???Prompt for user name and password every time".
    Option 3: Select the option from the main GUI Tools->Reset for Maintenance.

    Since the options currently available meet the requirement, the requested idea is being declined.

    IBM Power Systems Development