CVE-2014-7507 in Hector Leal
Summary
by MITRE
The Hector Leal (aka ad.hector.leal.com) application 13/08/14 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.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 10/09/2024
The vulnerability identified as CVE-2014-7507 resides within the Hector Leal Android application version 13/08/14, representing a critical security flaw in the application's implementation of secure communication protocols. This issue manifests as a failure to properly validate X.509 certificates during SSL/TLS connections, creating an exploitable weakness that fundamentally undermines the application's ability to establish secure communications with remote servers. The vulnerability specifically affects the application's certificate verification process, which is a cornerstone of secure network communications and essential for maintaining data integrity and confidentiality.
The technical flaw constitutes a failure in certificate validation mechanisms that should normally be enforced by the Android operating system's security framework. When an application fails to verify X.509 certificates, it essentially disables the cryptographic trust model that SSL/TLS protocols rely upon to prevent unauthorized parties from impersonating legitimate servers. This vulnerability directly maps to CWE-295, which addresses "Improper Certificate Validation," and represents a classic example of weak cryptographic implementation that leaves applications susceptible to man-in-the-middle attacks. The absence of proper certificate validation allows attackers to present forged certificates that appear legitimate to the vulnerable application, bypassing the security assurances that should normally be provided by the SSL/TLS protocol stack.
The operational impact of this vulnerability is severe and multifaceted, as it enables sophisticated attackers to conduct successful man-in-the-middle attacks against users of the affected application. An attacker positioned between the user and the target server can intercept, modify, or steal sensitive information transmitted through the application's network communications. This includes but is not limited to personal data, login credentials, financial information, and other confidential communications that the application is designed to protect. The vulnerability essentially provides attackers with a backdoor into the application's secure communication channels, potentially compromising the privacy and security of all users who rely on the application for sensitive operations. This weakness also aligns with ATT&CK technique T1046, which describes the use of network service scanning and manipulation to establish persistent access to target systems.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements to prevent similar issues from occurring in future implementations. The primary solution involves implementing proper certificate verification mechanisms within the application code, ensuring that all X.509 certificates are validated against trusted certificate authorities and that certificate chains are properly verified. Developers should utilize Android's built-in certificate pinning mechanisms and ensure that certificate validation follows industry best practices as outlined in NIST SP 800-57 and RFC 5280 standards. Additionally, implementing certificate transparency measures and regularly updating certificate validation libraries can help prevent exploitation of known vulnerabilities in cryptographic implementations. Organizations should also consider implementing network monitoring solutions to detect potential man-in-the-middle attacks and establish incident response procedures to quickly address any exploitation attempts against vulnerable applications.