CVE-2014-5731 in Word Search
Summary
by MITRE
The Word Search (aka com.virtuesoft.wordsearch) application 2.3.0 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 • 08/30/2024
The vulnerability identified as CVE-2014-5731 affects the Word Search application version 2.3.0 for Android operating systems, representing a critical security flaw in the application's handling of secure communications. This issue stems from the application's failure to properly validate X.509 certificates during SSL/TLS connections, creating a significant attack vector that compromises the integrity of network communications between the mobile application and remote servers. The vulnerability specifically targets the certificate verification process, which is fundamental to establishing trust in secure network communications and preventing unauthorized access to sensitive data.
The technical flaw manifests as a missing certificate validation mechanism within the application's SSL implementation, allowing attackers to perform man-in-the-middle attacks by presenting fraudulent certificates that appear legitimate to the vulnerable application. This weakness directly violates established security protocols and standards, as the application fails to perform the essential step of verifying certificate authenticity against trusted Certificate Authorities. The vulnerability falls under the category of improper certificate validation, which is classified as CWE-295 in the Common Weakness Enumeration framework, specifically addressing the failure to validate certificates or trust anchors. This flaw enables attackers to intercept and potentially modify data transmitted between the mobile application and its servers, compromising the confidentiality and integrity of sensitive information.
The operational impact of this vulnerability extends beyond simple data interception, as it creates opportunities for attackers to gain unauthorized access to user data, session tokens, and potentially personal information stored or transmitted through the application. Mobile applications that rely on secure communication channels for user authentication, data synchronization, or transaction processing become particularly vulnerable to exploitation, as the attacker can effectively impersonate legitimate servers and capture credentials or sensitive user information. The attack surface is further expanded because the vulnerability affects the entire communication stack of the application, making it difficult for users to detect unauthorized access attempts. This type of vulnerability aligns with tactics described in the MITRE ATT&CK framework under the T1566 technique for "Phishing with Malicious Attachments" and T1041 for "Exfiltration Over C2 Channel," as attackers can leverage the compromised communication channel to exfiltrate data or establish persistent access.
The mitigation strategies for this vulnerability require immediate implementation of proper SSL certificate validation mechanisms within the application. Developers must ensure that the application performs comprehensive certificate chain validation, including checking certificate expiration dates, verifying certificate signatures against trusted CAs, and implementing certificate pinning where appropriate. The solution should incorporate robust error handling for certificate validation failures and implement proper logging mechanisms to detect potential attacks. Additionally, security updates should include thorough testing of the SSL implementation to verify that all certificate validation checks are properly enforced. Organizations should also consider implementing network monitoring to detect unusual communication patterns that might indicate exploitation attempts, while users should be advised to avoid using the vulnerable application until proper patches are deployed. The vulnerability highlights the critical importance of secure coding practices in mobile applications and demonstrates how seemingly minor implementation flaws can create significant security risks in the mobile ecosystem.