CVE-2014-3691 in Foreman
Summary
by MITRE
Smart Proxy (aka Smart-Proxy and foreman-proxy) in Foreman before 1.5.4 and 1.6.x before 1.6.2 does not validate SSL certificates, which allows remote attackers to bypass intended authentication and execute arbitrary API requests via a request without a certificate.
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Analysis
by VulDB Data Team • 05/17/2022
The vulnerability identified as CVE-2014-3691 affects Smart Proxy components within the Foreman infrastructure management platform, specifically impacting versions prior to 1.5.4 and 1.6.x before 1.6.2. This represents a critical security flaw in the SSL certificate validation mechanism that governs secure communications between Foreman's management interface and its proxy components. The flaw stems from insufficient certificate validation processes that fail to properly verify the authenticity and integrity of SSL certificates presented during secure API communications. This vulnerability creates a dangerous condition where remote attackers can exploit the missing certificate validation to establish unauthorized connections and manipulate the system's API endpoints.
The technical implementation of this vulnerability resides in the certificate validation logic within the Smart Proxy service, which operates as a critical component in Foreman's architecture for managing and automating infrastructure tasks. When the proxy service receives API requests, it should validate the SSL certificates presented by clients to ensure they are properly signed by trusted Certificate Authorities and match the expected hostnames. However, in vulnerable versions, this validation process is either completely omitted or inadequately implemented, allowing attackers to bypass authentication mechanisms entirely. The flaw specifically impacts the authentication flow where certificate-based authentication should enforce secure access controls, but instead permits unauthenticated API operations.
The operational impact of this vulnerability extends far beyond simple unauthorized access, as it enables attackers to execute arbitrary API requests against the Foreman system with potentially elevated privileges. This capability allows malicious actors to manipulate the entire infrastructure management platform, including but not limited to creating or modifying system configurations, accessing sensitive data, and potentially escalating their privileges within the managed environment. The vulnerability effectively undermines the security model of the platform, as it permits remote exploitation without requiring any valid credentials or authentication tokens, making it particularly dangerous in production environments where Foreman manages critical infrastructure components.
Organizations affected by this vulnerability should immediately implement mitigations including upgrading to patched versions of Foreman that contain proper SSL certificate validation mechanisms. The recommended approach involves applying the security patches released by the Foreman project that address the certificate validation flaw and ensure proper verification of SSL certificates during API communications. Additionally, network-level security controls such as firewall rules and intrusion detection systems should be configured to monitor for unusual API activity patterns that might indicate exploitation attempts. Security teams should also conduct thorough audits of their Foreman deployments to identify any potential compromise indicators and implement enhanced monitoring for unauthorized API access attempts.
This vulnerability aligns with CWE-295, which specifically addresses improper certificate validation in security protocols, and represents a classic example of insufficient authentication mechanisms that can be exploited through man-in-the-middle attacks or unauthorized access scenarios. From an ATT&CK framework perspective, this vulnerability maps to techniques involving credential access and privilege escalation, as attackers can bypass authentication entirely and potentially gain elevated system privileges through the exposed API endpoints. The security implications extend beyond immediate exploitation to include potential data exfiltration, system compromise, and disruption of infrastructure management operations that could affect business continuity and regulatory compliance requirements.