Summary
BillaBear's installation handler contains a missing authentication control in the processInstall function. A remote attacker may invoke the installation workflow without proving identity, potentially gaining unauthorized control over installation-related operations when the handler is exposed.
BillaBear's installation handler contains a missing authentication control in the processInstall function. A remote attacker may invoke the installation workflow without proving identity, potentially gaining unauthorized control over installation-related operations when the handler is exposed.
Affected context
The vulnerability occurs in BillaBear's Installation Handler, specifically the processInstall function in src/BillaBear/Controller/InstallController.php. Deployments may be at risk when the installation endpoint is reachable remotely and does not require authentication before processing installation requests.
The vulnerability occurs in BillaBear's Installation Handler, specifically the processInstall function in src/BillaBear/Controller/InstallController.php. Deployments may be at risk when the installation endpoint is reachable remotely and does not require authentication before processing installation requests.
Exploit preconditions
- Attack surface: Remotely accessible installation handler
- Required access: Network access to the exposed installation endpoint; valid credentials may not be required
- Trigger point: A request reaching the
processInstallfunction - Why exploitation is possible: The handler does not consistently enforce authentication before allowing installation-related processing
- Attack surface: Remotely accessible installation handler
- Required access: Network access to the exposed installation endpoint; valid credentials may not be required
- Trigger point: A request reaching the
processInstallfunction - Why exploitation is possible: The handler does not consistently enforce authentication before allowing installation-related processing
Why this happens
The underlying issue is an absent or ineffective authentication check on a sensitive installation operation. This maps primarily to CWE-306: Missing Authentication for Critical Function, with a related mapping to CWE-287: Improper Authentication, because the application permits access to a protected workflow without adequately establishing the requester's identity.
The underlying issue is an absent or ineffective authentication check on a sensitive installation operation. This maps primarily to CWE-306: Missing Authentication for Critical Function, with a related mapping to CWE-287: Improper Authentication, because the application permits access to a protected workflow without adequately establishing the requester's identity.
Potential impact
- An attacker may access installation functionality without authorization.
- An attacker could alter application setup or deployment configuration.
- Sensitive installation data may be exposed or manipulated.
- The application could be placed into an attacker-controlled operational state.
- Follow-on compromise may occur if installation actions grant broader application privileges.
- An attacker may access installation functionality without authorization.
- An attacker could alter application setup or deployment configuration.
- Sensitive installation data may be exposed or manipulated.
- The application could be placed into an attacker-controlled operational state.
- Follow-on compromise may occur if installation actions grant broader application privileges.
General mitigation guidance
Mitigation typically focuses on protecting installation workflows with strong, explicit authentication and authorization controls.
Common defensive patterns include:
- Require authentication before any installation or initialization operation is processed.
- Apply authorization checks based on least privilege and administrative role requirements.
- Disable or remove installation endpoints after initial setup where operationally feasible.
- Bind setup functionality to a protected management network or other restricted administrative boundary.
- Use secure-by-default deployment settings that do not expose initialization handlers publicly.
- Avoid relying only on client-side controls or obscurity to protect installation actions.
- Log and monitor authentication failures and access to sensitive setup functions.
Mitigation typically focuses on protecting installation workflows with strong, explicit authentication and authorization controls.
Common defensive patterns include:
- Require authentication before any installation or initialization operation is processed.
- Apply authorization checks based on least privilege and administrative role requirements.
- Disable or remove installation endpoints after initial setup where operationally feasible.
- Bind setup functionality to a protected management network or other restricted administrative boundary.
- Use secure-by-default deployment settings that do not expose initialization handlers publicly.
- Avoid relying only on client-side controls or obscurity to protect installation actions.
- Log and monitor authentication failures and access to sensitive setup functions.
How teams detect issues like this
Organizations can identify similar weaknesses through:
- Static analysis rules that flag sensitive controller methods lacking authentication or authorization checks.
- Code review of installation, setup, migration, and administrative routes for explicit server-side access control.
- Route and middleware inventory checks to verify that protected handlers inherit authentication policy.
- Dynamic security testing that requests sensitive endpoints without credentials and verifies rejection.
- Policy enforcement requiring authentication annotations, middleware, or centralized authorization for critical operations.
- Monitoring for unexpected requests to installation endpoints and repeated unauthenticated access attempts.
Organizations can identify similar weaknesses through:
- Static analysis rules that flag sensitive controller methods lacking authentication or authorization checks.
- Code review of installation, setup, migration, and administrative routes for explicit server-side access control.
- Route and middleware inventory checks to verify that protected handlers inherit authentication policy.
- Dynamic security testing that requests sensitive endpoints without credentials and verifies rejection.
- Policy enforcement requiring authentication annotations, middleware, or centralized authorization for critical operations.
- Monitoring for unexpected requests to installation endpoints and repeated unauthenticated access attempts.
Sources
| Source | Link |
|---|---|
| gist. | gist.github.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
| vuldb. | vuldb.com/ |
