CVE-2014-7115 in Letters to God - soc. network
Summary
by MITRE
The Letters to God - soc. network (aka com.wPismakBoguLetterstoGod) application 0.1 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 • 09/30/2024
The vulnerability identified as CVE-2014-7115 affects the Letters to God social network application version 0.1 for Android platforms, representing a critical security flaw in the application's secure communication implementation. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack surface that exposes users to sophisticated man-in-the-middle assaults. The vulnerability specifically impacts the application's cryptographic handshake process, where it neglects to perform certificate chain validation and trust verification that are fundamental to establishing secure communications between mobile clients and remote servers.
The technical flaw manifests in the application's improper handling of SSL/TLS certificate validation mechanisms, which falls under the CWE-295 weakness category related to improper certificate validation. When the application establishes secure connections to its backend services, it fails to validate the server certificates against trusted certificate authorities, instead accepting any certificate presented by the server regardless of its authenticity or trustworthiness. This behavior directly violates established security protocols and creates an environment where attackers can successfully perform man-in-the-middle attacks by presenting forged certificates that appear legitimate to the vulnerable application. The attack vector involves intercepting network traffic between the Android device and the application servers, where the attacker can present a malicious certificate that the application accepts without proper verification.
The operational impact of this vulnerability extends beyond simple data interception, as it enables attackers to obtain sensitive user information through crafted certificate manipulation techniques. Mobile applications that rely on this flawed certificate validation process become susceptible to comprehensive data breaches, including user credentials, personal communications, and potentially financial information if the application handles such data. The vulnerability is particularly concerning in the context of mobile security as it undermines the fundamental security model of SSL/TLS protection, effectively nullifying the encryption and authentication mechanisms that users expect when communicating with secure services. This weakness creates persistent exposure for all users of the affected application, as the vulnerability exists within the application's core security implementation rather than being dependent on external factors or network conditions.
Mitigation strategies for this vulnerability must address the fundamental certificate validation flaw within the application's networking code. Developers should implement proper certificate pinning mechanisms that validate server certificates against known good certificates or certificate authorities, ensuring that only trusted certificates are accepted during SSL/TLS handshakes. The implementation should follow industry best practices for mobile security and align with guidelines from organizations such as the National Institute of Standards and Technology and the Open Web Application Security Project. Security patches should enforce strict certificate validation procedures that include chain of trust verification, expiration date checking, and proper hostname validation. Additionally, the application should be updated to use modern cryptographic libraries that properly handle certificate validation and avoid the use of deprecated or weak cryptographic implementations that may contribute to similar security weaknesses. Organizations should also consider implementing network monitoring solutions to detect potential man-in-the-middle attacks and establish incident response procedures for addressing certificate-related security incidents.