Executive Summary

This vulnerability is an authentication bypass in OpenFlagr versions up to 1.1.18. It occurs because the HTTP middleware improperly handles path normalization in the whitelist logic, allowing crafted requests to bypass authentication and access protected API endpoints without valid credentials.

Useful 0 Not Useful 0

Impact Analysis

The vulnerability can allow unauthorized users to access protected API endpoints, potentially modifying feature flags and exporting sensitive data, which could lead to security breaches and data exposure.

Useful 0 Not Useful 0

Compliance Impact

The vulnerability allows unauthorized access to protected API endpoints, enabling attackers to modify feature flags and export sensitive data. Such unauthorized data access and modification can lead to violations of data protection regulations like GDPR and HIPAA, which require strict controls on access to sensitive information and maintaining data integrity and confidentiality. Therefore, exploitation of this vulnerability could result in non-compliance with these common standards and regulations. [2, 3]

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by monitoring for crafted HTTP requests that exploit path traversal sequences to bypass authentication, such as requests containing paths like '/api/v1/health/../export/sqlite'. Network or application logs should be inspected for such suspicious requests. Specific commands are not provided in the resources, but using tools like curl or HTTP request interceptors to test access to protected API endpoints with crafted paths can help detect the issue. [2, 3]

Useful 0 Not Useful 0

Mitigation Strategies

The immediate mitigation step is to upgrade OpenFlagr to version 1.1.19 or later, where this authentication bypass vulnerability has been fixed. Until the upgrade can be applied, restrict access to the affected API endpoints via network controls or firewall rules to prevent unauthorized access. [1, 3]

Useful 0 Not Useful 0