CVE-2014-6961 in SudaniNet
Summary
by MITRE
The SudaniNet (aka com.sudaninet.wtwqiqbegq_btwlda) application 2.0 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 • 09/23/2024
The vulnerability identified as CVE-2014-6961 affects the SudaniNet Android application version 2.0, specifically targeting its implementation of secure communication protocols. This flaw represents a critical weakness in the application's security architecture that undermines the fundamental principles of secure network communication. The application's failure to properly validate X.509 certificates creates a pathway for malicious actors to conduct man-in-the-middle attacks against unsuspecting users. This vulnerability is particularly concerning given that the application operates on mobile devices where users often transmit sensitive personal and financial information. The flaw essentially removes the cryptographic verification that ensures the authenticity of SSL/TLS connections, leaving users exposed to various forms of cyber attacks that could compromise their data integrity and confidentiality.
The technical root cause of this vulnerability lies in the application's improper handling of SSL/TLS certificate validation mechanisms. When an Android application establishes a secure connection to a remote server, it should perform rigorous verification of the server's X.509 certificate against trusted certificate authorities. The SudaniNet application fails to implement this crucial verification step, allowing attackers to present fraudulent certificates that appear legitimate to the application. This behavior directly violates established security protocols and represents a violation of the principle of certificate chain validation as defined by cryptographic standards. The vulnerability is classified under CWE-295, which specifically addresses "Improper Certificate Validation," making it a well-documented weakness in secure communication implementations. The flaw essentially transforms the application from a secure communication channel into a potential data interception point, as attackers can create convincing fake certificates that bypass the application's security checks.
From an operational perspective, this vulnerability creates significant risks for users who interact with the application, particularly in environments where network security cannot be guaranteed. Mobile users are especially vulnerable as they frequently connect to public Wi-Fi networks, cellular data networks, and other potentially compromised communication channels. Attackers can exploit this weakness to intercept sensitive data such as login credentials, personal identification information, financial details, and other confidential communications. The impact extends beyond individual user privacy concerns to potentially enable broader attacks including credential theft, session hijacking, and data exfiltration. According to ATT&CK framework category T1566, this vulnerability represents a technique for initial access through credential harvesting, while also supporting T1041 for data encryption and T1567 for credential access. The attack surface is particularly broad given that the application operates on mobile platforms where users may not be aware of network security risks and where certificate validation is often transparent to end users.
The mitigation strategies for this vulnerability require immediate attention from both application developers and security administrators. The primary fix involves implementing proper certificate validation procedures that ensure all X.509 certificates presented by SSL servers are verified against trusted certificate authorities. This includes implementing certificate pinning mechanisms where the application explicitly trusts specific certificates or certificate authorities rather than relying on the system's default trust store. Security professionals should also consider implementing certificate revocation checking and ensuring that the application maintains up-to-date certificate trust lists. Network administrators should monitor for suspicious certificate activity and implement network-based detection measures to identify potential man-in-the-middle attacks. The application should also be updated to include proper error handling for certificate validation failures, ensuring that any certificate verification issues result in immediate connection termination rather than continued communication with unverified servers. Additionally, users should be educated about the risks of connecting to untrusted networks and the importance of verifying network security before transmitting sensitive information through vulnerable applications.