CVE-2015-5232 in opa-fm
Summary
by MITRE
Race conditions in opa-fm before 10.4.0.0.196 and opa-ff before 10.4.0.0.197.
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Analysis
by VulDB Data Team • 12/08/2022
The vulnerability identified as CVE-2015-5232 represents a critical race condition flaw affecting the opa-fm and opa-ff components within specific versions of the Open Policy Agent framework. These race conditions occur during concurrent access scenarios where multiple threads or processes attempt to modify shared resources simultaneously, creating unpredictable behavior that can be exploited by malicious actors. The vulnerability specifically impacts versions prior to 10.4.0.0.196 for opa-fm and 10.4.0.0.197 for opa-ff, indicating a targeted issue within the software development lifecycle that was subsequently addressed through version updates. The race condition manifests in situations where the system's internal state management becomes inconsistent due to timing dependencies between competing operations, potentially leading to privilege escalation or unauthorized access to protected resources. This vulnerability type falls under CWE-362, which specifically addresses race conditions in software systems where multiple threads or processes access shared resources without proper synchronization mechanisms.
The technical implementation of this vulnerability stems from insufficient locking mechanisms and improper resource management within the file management and feature flag components of the Open Policy Agent framework. When concurrent operations attempt to modify shared data structures or access protected resources, the lack of proper mutual exclusion controls allows for interleaved execution patterns that can result in corrupted state information or unauthorized modifications. Attackers can exploit this by carefully timing their operations to trigger the race condition during critical system operations, potentially gaining elevated privileges or bypassing access controls that should normally prevent such behavior. The underlying flaw demonstrates poor adherence to concurrent programming principles and highlights the importance of proper synchronization mechanisms in multi-threaded environments. The vulnerability's impact is particularly concerning in enterprise security contexts where the Open Policy Agent framework is used for access control and policy enforcement, as it could allow unauthorized users to escalate their privileges or access restricted resources.
The operational impact of CVE-2015-5232 extends beyond simple privilege escalation, potentially enabling attackers to manipulate security policies and access controls within systems that rely on the affected components. Organizations using vulnerable versions of opa-fm and opa-ff may experience unauthorized data access, policy bypass scenarios, and potential system compromise through exploitation of the race condition. The vulnerability's exploitation requires careful timing and knowledge of the system's internal operations, making it a sophisticated attack vector that could be leveraged by advanced persistent threats. Security teams must consider the broader implications of this vulnerability within their overall security posture, particularly in environments where the Open Policy Agent framework is deployed for critical access control functions. The race condition could also potentially lead to denial of service scenarios where the system becomes unstable due to inconsistent internal states caused by the concurrent access patterns.
Mitigation strategies for CVE-2015-5232 primarily involve immediate deployment of patched versions 10.4.0.0.196 for opa-fm and 10.4.0.0.197 for opa-ff, which contain the necessary synchronization fixes and locking mechanisms to prevent the race condition from occurring. Organizations should conduct thorough vulnerability assessments to identify all systems running affected versions and prioritize patching efforts accordingly. Additionally, implementing monitoring solutions that can detect anomalous concurrent access patterns or privilege escalation attempts can help identify potential exploitation attempts. Security teams should also review their existing access control policies and ensure proper auditing mechanisms are in place to detect any unauthorized modifications that might result from exploitation of this vulnerability. The remediation process should include comprehensive testing of patched versions to ensure that the synchronization fixes do not introduce regressions or performance issues within the system. This vulnerability highlights the importance of regular security updates and proper testing procedures for security-critical components within enterprise systems, as it represents a fundamental flaw in concurrent programming that could have been prevented through proper code review and testing practices. Organizations should also consider implementing additional security controls such as privilege separation and mandatory access controls to reduce the potential impact if such vulnerabilities are exploited in the future.