CVE-2014-6989 in Germanwings
Summary
by MITRE
The Germanwings (aka com.germanwings.android) application 2.1.13 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 • 09/24/2024
The vulnerability identified as CVE-2014-6989 affects the Germanwings Android application version 2.1.13, representing a critical security flaw in the application's implementation of secure communication protocols. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack vector for malicious actors seeking to compromise user data. The vulnerability specifically targets the certificate verification process that should ensure the authenticity and integrity of server identities in encrypted communications.
The technical flaw manifests in the application's inability to perform proper certificate chain validation and trust verification against established certificate authorities. When an Android application establishes SSL connections, it should validate the server certificate against a trusted root certificate store and verify that the certificate chain is properly constructed. The Germanwings application bypasses these critical security checks, allowing attackers to present fraudulent certificates that appear legitimate to the application. This weakness directly violates the fundamental principles of secure communication and certificate-based authentication mechanisms.
The operational impact of this vulnerability is severe and multifaceted, enabling man-in-the-middle attacks that can compromise sensitive user information including personal data, login credentials, and potentially financial information. Attackers can exploit this flaw by intercepting communications between the application and its servers, presenting forged certificates that the application accepts without proper validation. This creates an environment where malicious actors can eavesdrop on communications, inject malicious content, or redirect users to fraudulent endpoints while maintaining the appearance of legitimate service communication. The vulnerability essentially undermines the entire SSL/TLS security framework that protects mobile applications from unauthorized access.
From a cybersecurity perspective, this vulnerability aligns with CWE-295, which addresses improper certificate validation in security protocols, and represents a clear violation of the principle of certificate pinning and proper trust establishment in mobile applications. The ATT&CK framework categorizes this as a credential access technique through network protocol manipulation, where adversaries exploit weaknesses in authentication mechanisms to gain unauthorized access to sensitive information. Organizations using the affected application face significant risk of data breaches and user privacy violations, as the vulnerability can be exploited by attackers with minimal technical expertise to conduct sophisticated surveillance operations.
The mitigation strategies for this vulnerability require immediate implementation of proper certificate validation mechanisms within the application. Developers should implement robust certificate chain validation, utilize certificate pinning techniques, and ensure all SSL connections verify certificates against trusted root authorities. Additionally, regular security audits and code reviews should be conducted to identify similar vulnerabilities in other network communication components. The application should also implement proper error handling for certificate validation failures and establish clear protocols for dealing with untrusted certificate scenarios. Organizations should consider implementing network monitoring solutions to detect potential exploitation attempts and maintain up-to-date security patches to address similar vulnerabilities across their mobile application portfolio.