CVE-2014-7764 in Semper Invicta Fitness
Summary
by MITRE
The Semper Invicta Fitness (aka com.semper.invicta.fitness) application 1.1 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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Analysis
by VulDB Data Team • 10/18/2024
The Semper Invicta Fitness application version 1.1 for Android presents a critical security vulnerability through its improper implementation of SSL/TLS certificate validation mechanisms. This flaw fundamentally undermines the application's ability to establish secure communications with backend servers, creating a significant attack surface that malicious actors can exploit to compromise user data integrity and confidentiality. The vulnerability stems from the application's failure to properly validate X.509 certificates during the SSL handshake process, which is a fundamental security control designed to prevent unauthorized parties from impersonating legitimate services.
This certificate verification bypass represents a severe deviation from established security best practices and standards such as those outlined in the OWASP Mobile Security Project and NIST guidelines for secure mobile application development. The absence of proper certificate pinning or validation creates a man-in-the-middle attack vector where adversaries can intercept communications between the mobile application and its servers. Attackers can present forged certificates that appear legitimate to the application, allowing them to decrypt and potentially modify sensitive data in transit. This vulnerability directly maps to CWE-295, which specifically addresses "Improper Certificate Validation" in security protocols, and aligns with ATT&CK technique T1041 for data encryption and T1566 for credential access through network infiltration.
The operational impact of this vulnerability extends beyond simple data interception to encompass potential complete compromise of user accounts and personal fitness data. Fitness applications typically handle sensitive personal information including health metrics, location data, and user credentials that could be exploited for identity theft or other malicious purposes. The vulnerability affects all users of the application who engage in network communications with servers, making it particularly dangerous as it operates silently without user awareness. Attackers can leverage this weakness to capture login credentials, session tokens, and personal health information, potentially enabling further attacks against users' online accounts and identity.
Mitigation strategies for this vulnerability require immediate implementation of proper SSL certificate validation mechanisms within the application. Developers should implement certificate pinning techniques to ensure that only trusted certificates are accepted, rather than relying on the default trust store validation. The application must validate certificate chains against known good certificates or public key fingerprints, and implement proper error handling for certificate validation failures. Additionally, network security monitoring should be enhanced to detect unusual certificate behavior patterns, and regular security audits should be conducted to ensure ongoing compliance with security standards. Organizations should also consider implementing network-level protections such as deep packet inspection to detect and block malicious certificate exchanges, while users should be advised to avoid using the application until proper security patches are deployed. The vulnerability demonstrates the critical importance of robust cryptographic implementation in mobile applications and serves as a reminder of the necessity for comprehensive security testing throughout the software development lifecycle.