CVE-2014-7001 in Jian Ren
Summary
by MITRE
The Jian Ren (aka cn.sh.scustom.janren) 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.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 09/25/2024
The vulnerability identified as CVE-2014-7001 affects the Jian Ren application version 1.5.1 for Android platforms, representing a critical security flaw in the application's implementation of secure communication protocols. This issue resides within the application's handling of SSL/TLS certificate validation mechanisms, specifically targeting the X.509 certificate verification process that forms the cornerstone of secure network communications. The flaw enables attackers to perform man-in-the-middle attacks by presenting crafted certificates that the application accepts without proper validation, undermining the fundamental security assurances that SSL/TLS protocols are designed to provide.
The technical implementation of this vulnerability stems from the application's failure to properly validate X.509 certificates against established trust anchors and certificate chain validation rules. This represents a direct violation of security best practices and industry standards such as those outlined in CWE-295, which specifically addresses improper certificate validation. The application essentially bypasses the critical certificate verification steps that should confirm the authenticity of SSL servers, including checking certificate signatures, validating certificate authorities, and ensuring proper certificate expiration dates. This flaw aligns with ATT&CK technique T1046 which involves the exploitation of weak cryptographic implementations to gain unauthorized access to sensitive information.
The operational impact of this vulnerability extends beyond simple data interception, as it allows attackers to establish false trust relationships with users of the application. When users interact with services protected by SSL/TLS, they expect their communications to remain private and authentic, but this vulnerability removes those assurances entirely. Attackers can create malicious certificates that appear legitimate to the application, enabling them to capture sensitive user data including login credentials, personal information, financial details, and any other data transmitted through the vulnerable application's network connections. The vulnerability is particularly dangerous because it operates transparently to end users who may never realize their communications are being intercepted or manipulated.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements. Application developers should implement proper certificate pinning mechanisms that validate certificates against known good certificates or public keys rather than relying solely on certificate authority validation. The application should also enforce strict certificate chain validation including checking certificate signatures, verifying certificate expiration dates, and ensuring certificates are issued by trusted certificate authorities. Organizations should consider implementing network-level monitoring to detect unusual certificate behavior and establish proper security testing procedures including penetration testing and code reviews focused on cryptographic implementations. Additionally, users should be educated about the risks of using applications with known certificate validation vulnerabilities, and developers should follow security frameworks such as those recommended by NIST SP 800-52 for proper certificate management and validation practices.