CVE-2014-7123 in Brevir Harian V2
Summary
by MITRE
The Brevir Harian V2 (aka com.brevir.harian.v) 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.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 10/01/2024
The vulnerability identified as CVE-2014-7123 affects the Brevir Harian V2 Android application version 2.0, specifically targeting its secure communication implementation. This represents a critical security flaw in the application's certificate validation mechanism that fundamentally undermines the integrity of encrypted communications between the mobile client and remote servers. The application's failure to properly validate X.509 certificates creates an exploitable condition that allows malicious actors to perform man-in-the-middle attacks without authentication or authorization.
The technical flaw manifests in the application's inability to perform proper certificate chain validation and trust verification processes. When establishing SSL connections, the application accepts any certificate presented by the server without validating the certificate authority, expiration dates, or domain name matching requirements. This vulnerability falls under CWE-295, which specifically addresses improper certificate validation, and represents a direct violation of secure communication protocols. The flaw enables attackers to generate or obtain fraudulent certificates that appear legitimate to the application, allowing them to intercept and potentially modify all data transmitted between the mobile device and target servers.
The operational impact of this vulnerability extends beyond simple data interception to encompass comprehensive information theft and system compromise. Attackers can exploit this weakness to obtain sensitive user information including personal data, login credentials, financial details, and any other information transmitted through the vulnerable application's communication channels. The vulnerability particularly affects mobile applications that handle confidential data, as the Android platform's trust model becomes compromised when applications fail to validate server certificates properly. This creates a persistent threat vector that can be exploited repeatedly during the application's runtime, potentially affecting multiple users and sessions.
Mitigation strategies for this vulnerability require immediate implementation of proper certificate validation mechanisms within the application. Developers should implement certificate pinning techniques to ensure that only specific certificates or certificate authorities are accepted for communication. The application must validate certificate chains against trusted root certificates, verify certificate expiration dates, and confirm domain name matching through Subject Alternative Name or Common Name fields. Additionally, implementing certificate transparency checks and regularly updating trusted certificate stores will enhance the application's security posture. This vulnerability aligns with ATT&CK technique T1566, which covers credential harvesting through phishing and man-in-the-middle attacks, and represents a fundamental failure in the application's secure coding practices that violates industry standards for mobile application security. Organizations should conduct comprehensive security assessments of all mobile applications to identify similar certificate validation weaknesses and implement robust cryptographic security measures across their mobile platforms.