CVE-2014-5676 in Township
Summary
by MITRE
The Township (aka com.playrix.township) application 1.5.1 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 • 08/28/2024
The vulnerability identified as CVE-2014-5676 affects the Township mobile application version 1.5.1 for Android platforms, representing a critical security flaw in the application's cryptographic implementation. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS communications, creating a significant attack vector that undermines the fundamental security guarantees of encrypted network connections. The flaw specifically impacts the certificate verification process, which is a core component of secure communication protocols designed to establish trust between client and server entities.
The technical implementation of this vulnerability lies in the absence of proper certificate chain validation within the application's SSL/TLS handshake process. When the Township application establishes secure connections to its backend servers, it fails to perform the essential validation steps required to verify certificate authenticity, including checking certificate signatures, validating certificate authorities, and ensuring proper certificate expiration dates. This weakness allows attackers to exploit the trust model by presenting fraudulent certificates that appear legitimate to the application, effectively bypassing the security mechanisms designed to prevent unauthorized access to sensitive data.
From an operational perspective, this vulnerability exposes users to severe man-in-the-middle attacks that can compromise the confidentiality and integrity of all data transmitted between the mobile application and its servers. Attackers can intercept and modify communications, potentially gaining access to user credentials, personal information, financial data, and other sensitive details that the application processes during normal operation. The impact extends beyond individual user privacy concerns to potential financial fraud, identity theft, and corporate data breaches, particularly given the nature of mobile applications that often handle user accounts and payment information.
The vulnerability aligns with CWE-295, which specifically addresses improper certificate validation in security protocols, and represents a clear violation of security best practices outlined in industry standards such as NIST SP 800-57 and ISO/IEC 27001. This flaw also maps to ATT&CK technique T1046, which involves network service scanning and exploitation of weak security implementations, and T1566, which covers credential harvesting through social engineering and man-in-the-middle attacks. The lack of certificate verification creates an attack surface that allows adversaries to establish persistent access to user sessions and potentially escalate privileges within the application's ecosystem.
Mitigation strategies for this vulnerability require immediate implementation of proper certificate validation mechanisms within the application code. Developers should implement certificate pinning techniques, utilize trusted certificate authorities, and ensure that all SSL/TLS connections perform comprehensive certificate chain validation. Security patches must include proper error handling for certificate validation failures, implement certificate revocation checking, and establish robust logging mechanisms to detect potential certificate-related attacks. Additionally, regular security audits and penetration testing should be conducted to identify similar implementation flaws in other network communication components. The application should also incorporate automatic updates to ensure that users receive security patches promptly, as well as educate users about the importance of maintaining updated applications to protect against known vulnerabilities.