CVE-2014-6911 in HD 2015
Summary
by MITRE
The diziturky HD 2015 (aka com.adv.diziturky) application 2014 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 • 09/22/2024
The vulnerability identified as CVE-2014-6911 affects the diziturky HD 2015 Android application, which is classified as a mobile security flaw under the broader category of insecure cryptographic implementation. This application, developed by com.adv.diziturky, fails to properly validate X.509 certificates during SSL/TLS communications, creating a critical security weakness that exposes users to sophisticated man-in-the-middle attacks. The flaw represents a fundamental failure in the application's security architecture, specifically in its certificate validation mechanisms that should be enforcing cryptographic trust boundaries.
The technical nature of this vulnerability stems from the application's inability to perform proper certificate chain validation and trust verification processes that are essential for secure SSL communications. When an Android application establishes a secure connection to a remote server, it must validate the server's X.509 certificate against a trusted certificate authority to ensure the authenticity of the server. The diziturky HD 2015 application bypasses this critical validation step, allowing attackers to present malicious certificates that appear legitimate to the application. This weakness directly violates established security protocols and represents a violation of the principle of secure communication that is fundamental to mobile application security.
The operational impact of this vulnerability is severe and multifaceted, as it creates opportunities for attackers to intercept and manipulate sensitive data transmitted between the mobile application and its backend services. An attacker positioned between the vulnerable application and its target server can present a forged certificate that the application accepts without verification, enabling them to decrypt and modify communications. This capability allows for credential theft, session hijacking, and data exfiltration, particularly concerning user authentication information, personal data, and potentially financial transactions if the application handles such sensitive information. The vulnerability affects the confidentiality and integrity of communications, undermining the fundamental security assurances that users expect from mobile applications.
This vulnerability aligns with CWE-295, which specifically addresses "Improper Certificate Validation," and represents a classic example of how inadequate cryptographic implementation can compromise entire security architectures. From an attack perspective, the flaw maps to ATT&CK technique T1041, which covers "Exfiltration Over C2 Channel," and T1566, covering "Phishing," as attackers can leverage the compromised communication channel to gather sensitive information. The vulnerability also relates to the broader category of weak cryptographic practices that are commonly exploited in mobile application attacks. Organizations should consider this vulnerability as part of their mobile application security assessment frameworks, particularly when evaluating applications that handle sensitive user data or perform authentication functions. The remediation requires implementing proper certificate validation procedures, including certificate pinning where appropriate, and ensuring that all SSL/TLS communications are properly validated against trusted certificate authorities to prevent such man-in-the-middle attacks from succeeding.