TPM-24.4: Third-Party Access Revocation
Mechanisms exist to timely revoke third-party physical and logical access to organizational Technology Assets, Applications, Services and Data (TAASD) upon cessation of third-party services or when such access is no longer required.
Control Question: Does the organization timely revoke third-party physical and logical access to organizational Technology Assets, Applications, Services and Data (TAASD) upon cessation of third-party services or when such access is no longer required?
Capability Maturity Model
Level 0 — Not Performed
Practices are non-existent, based on the inability to demonstrate an implemented and operational capability. A reasonable person would conclude the control is not being performed.
Level 1 — Performed Informally
Third-Party Management (TPM) domain capabilities are ad hoc and inconsistent. Capability criteria associated with this control may include: ▪ Policies, standards & procedures associated with TPM domain capabilities provide limited coverage due to the depth and breadth of the existing documentation. ▪ Third-party management-related activities are decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices.
Level 2 — Planned & Tracked
Third-Party Management (TPM) capabilities are requirements-driven, but are not standardized across the entity (e.g., local/regional level consistency). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with TPM domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with TPM domain capabilities are documented and maintained by process owners. ▪ IT and/or cybersecurity personnel work with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with TPM domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Third-party management-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines). ▪ Asset management may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel.
Level 3 — Well Defined
Third-Party Management (TPM) capabilities are standardized across the entity for applicability to People, Processes, Technologies, Data and/or Facilities (PPTDF) to ensure consistency for Technology Assets, Applications, Services and/or Data (TAASD). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with TPM domain capabilities are formally documented and centrally-managed by the entity's Governance, Risk & Compliance (GRC) team, or similar function. ▪ Standardized Operating Procedures (SOP) associated with TPM domain capabilities are well-documented and kept current by process owners. ▪ A procurement team, or similar function, is appropriately staffed and supported to implement and maintain TPM domain capabilities. ▪ Technology is leveraged to enhance the efficiency and accuracy of third-party management operations (e.g., TPRM risk management solution and vendor management solution). ▪ The entity's Governance, Risk & Compliance (GRC) team, or similar function, works with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with TPM domain capabilities to address Minimum Compliance Requirements (MCR) (e.g., applicable statutory, regulatory and/or contractual requirements) and Discretionary Security Requirements (DSR) (e.g., entity-required controls).
Level 4 — Quantitatively Controlled
Utilize SCR-CMM Level 3 criteria definitions: ▪ There are no defined Level 4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to operationalize this control. ▪ While it may be possible to develop “metrics-driven” capabilities for this control, the criteria would be organization-specific to define.
Level 5 — Continuously Improving
Utilize SCR-CMM Level 3 or Level 4 (if available) criteria definitions: ▪ There are no defined Level 5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to operationalize this control. ▪ Level 5 capabilities should be considered “world-class” where the control builds on Level 4 capabilities, but are continuously improving through Artificial Intelligence (AI) and/or Machine Learning (ML) technologies. ▪ While it may be possible to develop responsive capabilities for this control through the use of AI and/or ML technologies, the criteria would be organization-specific to define.
Assessment Objectives
- TPM-24.4_A01 the time period within which third-party physical and logical access is revoked upon cessation of services or when access is no longer required is defined.
- TPM-24.4_A02 third-party logical access (e.g., accounts, credentials, API keys, certificates, VPN and remote access) to organizational Technology Assets, Applications, Services and Data (TAASD) is revoked within the defined time period upon cessation of third-party services.
- TPM-24.4_A03 third-party physical access (e.g., badges, keys and visitor authorizations) to organizational facilities and Technology Assets, Applications, Services and Data (TAASD) is revoked within the defined time period upon cessation of third-party services.
- TPM-24.4_A04 third-party access that is no longer required during an ongoing relationship (e.g., completion of a project or change in personnel) is identified and revoked within the defined time period.
- TPM-24.4_A05 a record of third-party access revocations, including the date of cessation or determination and the date of revocation, is retained.
Evidence Requirements
- E-TPM-09 Third-Party Access Revocation Records
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Documented evidence that third-party physical and logical access was revoked upon cessation of services.
Third-Party Management
Technology Recommendations
Micro/Small
- Disable vendor accounts and remote access when the contract ends
- Collect keys/badges
Small
- Vendor offboarding checklist covering accounts, VPN, API keys and physical access
- Verification of revocation
Medium
- Third-party access tracked in the identity system with sponsor and end date
- Automated expiry of third-party accounts
- Offboarding tied to contract end in TPRM records
Large
- Identity Governance & Administration (IGA) for third-party identities with expiration and recertification
- PAM for vendor privileged access
- Physical access system integration
Enterprise
- Enterprise third-party identity lifecycle management (e.g., SailPoint, Saviynt, Okta)
- PAM-brokered vendor access with automatic termination
- Automated revocation triggered by contract status in TPRM/ERP