Are emergency changes governed (post-implementation review, retroactive approval, documented)?
Demonstrate that all emergency changes implemented outside standard approval workflows undergo timely post-implementation review, receive retroactive management approval, and are comprehensively documented with justification and impact analysis.
Description
What this control does
Emergency changes, often implemented outside standard approval workflows to restore service or remediate critical security incidents, must still be subject to governance through post-implementation review and retroactive approval processes. Organizations must document the justification, actions taken, and approvers who validate the change after deployment. This control ensures that even urgent modifications receive proper oversight, are traceable, and do not become a pathway to bypass change management discipline. Without this control, emergency procedures can erode security posture and create undocumented configuration drift.
Control objective
What auditing this proves
Demonstrate that all emergency changes implemented outside standard approval workflows undergo timely post-implementation review, receive retroactive management approval, and are comprehensively documented with justification and impact analysis.
Associated risks
Risks this control addresses
- Unauthorized or malicious changes disguised as emergencies bypass detection and accountability mechanisms
- Critical system modifications lack sufficient documentation, preventing effective rollback or troubleshooting during subsequent incidents
- Emergency changes introduce security vulnerabilities or misconfigurations that are not identified through the standard pre-implementation review process
- Accumulation of undocumented emergency changes creates configuration drift and unknown state across production environments
- Absence of retroactive approval enables circumvention of segregation of duties and management oversight requirements
- Insufficient post-implementation review fails to capture lessons learned, perpetuating root causes that trigger future emergencies
- Audit trails become incomplete when emergency changes are not retrospectively logged with appropriate business justification
Testing procedure
How an auditor verifies this control
- Obtain the organization's written change management policy and procedures, specifically identifying the sections addressing emergency change processes, approval authorities, and post-implementation review requirements.
- Request a complete listing of all emergency changes executed during the audit period, including ticket identifiers, dates, requesters, implementers, and affected systems.
- Select a representative sample of emergency changes spanning different types of systems, severity levels, and time periods throughout the audit scope.
- For each sampled emergency change, verify the presence of documented business justification, incident or service restoration context, and timestamp of implementation.
- Examine evidence of post-implementation review for each sample, confirming that reviews occurred within the timeframe specified in policy and included technical assessment of the change outcome.
- Validate that retroactive approval was obtained from appropriate management or change advisory board members, with documented approval dates and approver identities.
- Compare the emergency change documentation against standard change records to confirm that emergency procedures are not being routinely misused to bypass normal controls.
- Interview change management personnel and a sample of change implementers to assess understanding of emergency change governance requirements and confirm operational adherence to documented procedures.