Summary
ChronoFrame contains a missing authentication vulnerability in its server-side wizard handlers, allowing unauthenticated requests to modify settings on already configured instances. An attacker may redirect storage operations to an attacker-controlled S3 or OpenList provider and overwrite site or map configuration when the affected endpoints are reachable.
ChronoFrame contains a missing authentication vulnerability in its server-side wizard handlers, allowing unauthenticated requests to modify settings on already configured instances. An attacker may redirect storage operations to an attacker-controlled S3 or OpenList provider and overwrite site or map configuration when the affected endpoints are reachable.
Affected context
The issue occurs in ChronoFrame instances that expose the server/api/wizard/ handlers, including the /api/wizard/storage endpoint, without requiring authentication for configuration-changing requests. Risk is higher when these endpoints are network-accessible and the application permits wizard operations after initial setup.
The issue occurs in ChronoFrame instances that expose the server/api/wizard/ handlers, including the /api/wizard/storage endpoint, without requiring authentication for configuration-changing requests. Risk is higher when these endpoints are network-accessible and the application permits wizard operations after initial setup.
Exploit preconditions
- Attack surface: HTTP API handlers under
/api/wizard/ - Required access: Network access to the affected ChronoFrame instance; no valid credentials are required
- Trigger point: A configuration-changing POST request to a wizard endpoint, including
/api/wizard/storage - Why exploitation is possible: The handlers accept sensitive reconfiguration requests without first enforcing authentication or verifying that the caller is authorized to change an already configured instance
- Attack surface: HTTP API handlers under
/api/wizard/ - Required access: Network access to the affected ChronoFrame instance; no valid credentials are required
- Trigger point: A configuration-changing POST request to a wizard endpoint, including
/api/wizard/storage - Why exploitation is possible: The handlers accept sensitive reconfiguration requests without first enforcing authentication or verifying that the caller is authorized to change an already configured instance
Why this happens
The vulnerability results from an authorization boundary being omitted from administrative configuration handlers. Sensitive wizard operations remain callable without establishing the caller's identity and permissions, which maps to CWE-306: Missing Authentication for Critical Function. The insecure pattern is treating a setup or configuration endpoint as trusted based on its route or deployment context rather than requiring authentication for every state-changing operation.
The vulnerability results from an authorization boundary being omitted from administrative configuration handlers. Sensitive wizard operations remain callable without establishing the caller's identity and permissions, which maps to CWE-306: Missing Authentication for Critical Function. The insecure pattern is treating a setup or configuration endpoint as trusted based on its route or deployment context rather than requiring authentication for every state-changing operation.
Potential impact
- An attacker may redirect uploads or storage reads to infrastructure they control
- Site and map settings could be overwritten
- Sensitive stored content may be exposed or altered
- Application availability or integrity could be disrupted
- Downstream users may be exposed to manipulated content or configuration
- An attacker may redirect uploads or storage reads to infrastructure they control
- Site and map settings could be overwritten
- Sensitive stored content may be exposed or altered
- Application availability or integrity could be disrupted
- Downstream users may be exposed to manipulated content or configuration
General mitigation guidance
Mitigation generally focuses on making authentication and authorization mandatory for all configuration-changing handlers.
Common defensive patterns include:
- Require authenticated, authorized sessions or service identities for wizard and administrative APIs
- Disable setup or reconfiguration endpoints after initialization unless explicitly re-enabled through a protected control
- Apply strict allowlists and validation to storage-provider settings and destination identifiers
- Separate read-only operations from state-changing administrative functions
- Use least-privilege credentials for storage access and restrict outbound connectivity where practical
- Add CSRF protections, secure session handling, and audit logging for configuration changes
- Enforce network policies that prevent unauthenticated external access to administrative endpoints
Mitigation generally focuses on making authentication and authorization mandatory for all configuration-changing handlers.
Common defensive patterns include:
- Require authenticated, authorized sessions or service identities for wizard and administrative APIs
- Disable setup or reconfiguration endpoints after initialization unless explicitly re-enabled through a protected control
- Apply strict allowlists and validation to storage-provider settings and destination identifiers
- Separate read-only operations from state-changing administrative functions
- Use least-privilege credentials for storage access and restrict outbound connectivity where practical
- Add CSRF protections, secure session handling, and audit logging for configuration changes
- Enforce network policies that prevent unauthenticated external access to administrative endpoints
How teams detect issues like this
Detection can combine static analysis, code review, runtime monitoring, and policy enforcement:
- Identify state-changing routes whose handlers do not invoke authentication and authorization middleware
- Review wizard and setup APIs for assumptions that they are reachable only during initial deployment
- Search for POST, PUT, PATCH, or DELETE handlers that modify provider, site, map, or credential settings without identity checks
- Test administrative endpoints from an unauthenticated client and verify that they consistently reject configuration changes
- Monitor audit logs for unexpected wizard requests, provider changes, and storage destination modifications
- Use automated application security testing or code review tools to flag unauthenticated sensitive endpoints
Detection can combine static analysis, code review, runtime monitoring, and policy enforcement:
- Identify state-changing routes whose handlers do not invoke authentication and authorization middleware
- Review wizard and setup APIs for assumptions that they are reachable only during initial deployment
- Search for POST, PUT, PATCH, or DELETE handlers that modify provider, site, map, or credential settings without identity checks
- Test administrative endpoints from an unauthenticated client and verify that they consistently reject configuration changes
- Monitor audit logs for unexpected wizard requests, provider changes, and storage destination modifications
- Use automated application security testing or code review tools to flag unauthenticated sensitive endpoints
