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Cyber security documentation
ASD ISMISM-0912

ASD ISM 0912 Establish and manage system configuration changes

What it says

Systems have a change and configuration management plan that includes: - the establishment and maintenance of authorised baseline configurations for systems - what constitutes routine and urgent changes to the configuration of systems - how changes to the configuration of systems will be requested, tracked and documented - who needs to be consulted prior to routine and urgent changes to the configuration of systems - who needs to approve routine and urgent changes to the configuration of systems - who needs to be notified of routine and urgent changes to the configuration of systems - what additional change management and configuration management processes and procedures need to be followed before, during and after routine and urgent changes to the configuration of systems.

Quoted as published. Everything else on this page is written by Control Stack.

What it means

In plain English

Ensure systems have a plan for managing changes, including approvals and notifications for both routine and urgent updates.

Managing how changes are made to your computer systems might seem straightforward, but without a clear plan, you risk things going wrong, like losing important data or making systems unusable. By having a set process for requesting, approving, and notifying about changes, you can significantly reduce the chance of causing disruptions to your business operations.

Why it matters

Without a robust change and configuration management plan, unapproved alterations can introduce vulnerabilities and disrupt critical operations.

How to implement

  1. System owners should establish a clear list of what counts as a routine or urgent change to their systems.

    They can do this by reviewing past system changes and categorising them based on their impact and how quickly they needed to be implemented.

  2. The IT team should create a formal change request process to request and document all proposed changes.

    This might involve filling out a simple form outlining the nature and urgency of the change, and submitting it for review.

  3. Managers need to determine who has the authority to approve changes and ensure this person is informed about their role.

    They can do this by assigning change approval responsibilities as part of each system owner's job description.

  4. Communication leads should set up a notification process for informing all relevant personnel of upcoming changes.

    This could include emails or meetings to discuss the impact and timing of the changes with affected staff.

  5. System owners and IT teams should regularly review and update the change management plan.

    This involves scheduling periodic meetings to discuss any process improvements and amendments based on feedback and incidents.

Keep it running

Log, track and document all routine and urgent change requests; obtain approvals/notifications and audit regularly to prevent drift from authorised baselines.

Evidence and audit

  1. Check 1 of 5What an auditor asks for

    Ask for

    The written change management plan documentation: Ensure it includes definitions for routine and urgent changes.

    Look at

    How changes are categorised and defined.

    Good evidence

    Shows there are clear categories with specific examples.

  2. Check 2 of 5What an auditor asks for

    Look at

    Completeness and clarity in change descriptions.

    Good evidence

    Has detailed records for every change made.

  3. Check 3 of 5What an auditor asks for

    Ask for

    The list of personnel authorised to approve changes: Verify it matches the people's job descriptions.

    Look at

    Explicit naming of roles.

    Good evidence

    Has a decision-maker clearly listed with authority for signing off changes.

  4. Check 4 of 5What an auditor asks for

    Look at

    Consistent dates and thorough communication records.

    Good evidence

    Shows organised and timely notification of each change.

  5. Check 5 of 5What an auditor asks for

    Ask for

    Past change review meeting notes: Assess if regular reviews of the process are occurring.

    Look at

    Agendas and action items in the notes.

    Good evidence

    Includes records showing that the plan was discussed, and necessary updates were made.

Mappings

Closest match in ISO/IEC 27001: A.5.37, Documented operating procedures for information processing, which partially overlaps with this control.

ISO 27001

ISO/IEC 27001: 5 mappings

ISO 42001

ISO/IEC 42001: 2 mappings

  • A.6.2.5AI system deploymentPartially overlaps

Mappings show how controls relate across frameworks. They do not imply full equivalence or certification.