Insecure Direct Object Reference
Also known as:IDOR
Insecure Direct Object Reference: Access control flaw where object identifiers enable unauthorized access. The term is relevant for the assessment and design of modern security architecturesSecurity ArchitectureThe structured design of security controls, trust boundaries, data flows, and operational responsibilities. and should be applied within the specific technical and organizational context.
How it works and where it fits
Insecure Direct Object Reference denotes a vulnerability or weakness class whose risk depends on technical cause, reachable attack surface, required conditions, and potential impact. The presence of a flaw is not the same as successful exploitation. Context such as exposed interfaces, available privileges, asset value, and compensating controls determines the actual urgency.
Practical security relevance
Proper treatment covers identification, reproducibility, risk assessment, remediation, and verification. A patch is only one possible measure; secure configuration, input validation, segmentation, or architectural change may be required depending on the cause. After remediation, targeted retesting should confirm that the original attack path is closed and that the change did not introduce harmful side effects.
Related concepts
- Application SecurityApplication SecurityProtects software against vulnerabilities during development, operation, and maintenance.: Protects software against vulnerabilities during development, operation, and maintenance.
- AuthenticationAuthenticationVerification of the claimed identity of a user or system.: Verification of the claimed identity of a user or system.
- AuthorizationAuthorizationDecision regarding which actions an authenticated identity is permitted to perform.: Decision regarding which actions an authenticated identity is permitted to perform.
- Identity and Access ManagementIdentity and Access ManagementManages digital identities, roles, permissions, and access lifecycles.: Manages digital identities, roles, permissions, and access lifecycles.