Summary
CheckCle through version 1.6.0 ships PocketBase collections with empty API authorization rules, allowing unauthenticated users to access records without permission checks. Depending on the exposed collection, an attacker may read, modify, or delete sensitive tokens, alert settings, status-page content, and monitoring data.
CheckCle through version 1.6.0 ships PocketBase collections with empty API authorization rules, allowing unauthenticated users to access records without permission checks. Depending on the exposed collection, an attacker may read, modify, or delete sensitive tokens, alert settings, status-page content, and monitoring data.
Affected context
The vulnerability affects CheckCle deployments that expose PocketBase collection APIs while retaining empty or otherwise ineffective API rules. Risk is greatest when collections contain server tokens, alert configuration secrets, monitoring records, or status-page data and the corresponding record endpoints are reachable by unauthenticated clients.
The vulnerability affects CheckCle deployments that expose PocketBase collection APIs while retaining empty or otherwise ineffective API rules. Risk is greatest when collections contain server tokens, alert configuration secrets, monitoring records, or status-page data and the corresponding record endpoints are reachable by unauthenticated clients.
Exploit preconditions
- Attack surface: PocketBase collection record API endpoints
- Required access: Network reachability to the exposed API; authentication may not be required
- Trigger point: Requests to collection record operations for affected collections
- Why exploitation is possible: Empty or missing authorization rules permit operations without verifying the caller's identity or privileges
- Attack surface: PocketBase collection record API endpoints
- Required access: Network reachability to the exposed API; authentication may not be required
- Trigger point: Requests to collection record operations for affected collections
- Why exploitation is possible: Empty or missing authorization rules permit operations without verifying the caller's identity or privileges
Why this happens
The underlying bug is an authorization design failure in which shipped collection rules do not enforce access control for record operations. The application therefore treats unauthenticated requests as authorized instead of applying deny-by-default rules and validating the caller's permissions. This behavior maps to CWE-862, Missing Authorization, because access checks are absent at the point where protected records are read or changed.
The underlying bug is an authorization design failure in which shipped collection rules do not enforce access control for record operations. The application therefore treats unauthenticated requests as authorized instead of applying deny-by-default rules and validating the caller's permissions. This behavior maps to CWE-862, Missing Authorization, because access checks are absent at the point where protected records are read or changed.
Potential impact
- Attackers may read server tokens and alert-configuration secrets.
- Attackers could disable or alter monitoring and alerting behavior.
- Attackers may modify public or internal status-page content.
- Attackers could delete monitoring records and impair incident investigation.
- Compromised secrets may enable further unauthorized access to connected services.
- Attackers may read server tokens and alert-configuration secrets.
- Attackers could disable or alter monitoring and alerting behavior.
- Attackers may modify public or internal status-page content.
- Attackers could delete monitoring records and impair incident investigation.
- Compromised secrets may enable further unauthorized access to connected services.
General mitigation guidance
Mitigation generally focuses on enforcing authorization at every collection
and record operation.
Common defensive patterns include:
- Configure explicit, deny-by-default API rules for every collection.
- Require authentication and verify role, ownership, and operation-specific permissions.
- Keep secrets out of broadly readable collections and minimize stored sensitive data.
- Separate administrative, monitoring, and public status-page data into distinct access domains.
- Apply least privilege to service identities and restrict network exposure of management APIs.
- Protect high-impact operations with server-side validation, audit logging, and change controls.
- Treat shipped configuration as a security boundary and review authorization rules before deployment.
Mitigation generally focuses on enforcing authorization at every collection
and record operation.
Common defensive patterns include:
- Configure explicit, deny-by-default API rules for every collection.
- Require authentication and verify role, ownership, and operation-specific permissions.
- Keep secrets out of broadly readable collections and minimize stored sensitive data.
- Separate administrative, monitoring, and public status-page data into distinct access domains.
- Apply least privilege to service identities and restrict network exposure of management APIs.
- Protect high-impact operations with server-side validation, audit logging, and change controls.
- Treat shipped configuration as a security boundary and review authorization rules before deployment.
How teams detect issues like this
Organizations can identify similar issues through:
- Static and configuration analysis that flags empty, permissive, or missing collection rules.
- Code and deployment reviews checking whether every record operation has an explicit authorization decision.
- Unauthenticated and low-privilege API tests covering read, create, update, and delete behavior.
- Monitoring for unexpected access to secret-bearing collections and destructive record activity.
- Policy enforcement requiring deny-by-default authorization and approval for publicly reachable data APIs.
- Automated security review tools that inspect PocketBase configuration and endpoint exposure can help surface these patterns.
Organizations can identify similar issues through:
- Static and configuration analysis that flags empty, permissive, or missing collection rules.
- Code and deployment reviews checking whether every record operation has an explicit authorization decision.
- Unauthenticated and low-privilege API tests covering read, create, update, and delete behavior.
- Monitoring for unexpected access to secret-bearing collections and destructive record activity.
- Policy enforcement requiring deny-by-default authorization and approval for publicly reachable data APIs.
- Automated security review tools that inspect PocketBase configuration and endpoint exposure can help surface these patterns.
