CVE-2014-4892 in Smart Home Automation
Summary
by MITRE
The uControl Smart Home Automation (aka de.ucontrol) application 1.2 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 • 08/23/2024
The uControl Smart Home Automation application version 1.2 for Android presents a critical security vulnerability through its improper handling of SSL certificate verification mechanisms. This flaw represents a fundamental breakdown in the application's cryptographic security architecture, creating an environment where malicious actors can exploit the lack of proper certificate validation to execute man-in-the-middle attacks. The vulnerability specifically affects the application's inability to properly verify X.509 certificates presented by SSL servers during secure communication sessions, fundamentally undermining the integrity and confidentiality guarantees that SSL/TLS protocols are designed to provide.
This security weakness directly corresponds to CWE-295, which identifies improper certificate validation as a critical flaw in cryptographic implementations. The vulnerability creates a dangerous attack surface where adversaries can present forged SSL certificates to the Android application, effectively bypassing the normal security measures that should protect user communications. The attack vector involves a malicious actor intercepting network traffic between the smart home application and legitimate servers, then presenting a crafted certificate that appears valid to the application's insecure verification process. This allows the attacker to establish seemingly secure connections while actually controlling the communication channel, enabling them to capture, modify, or redirect sensitive data flows.
The operational impact of this vulnerability extends beyond simple data interception, as the uControl application likely handles sensitive home automation data including user credentials, device control commands, and potentially personal information about household activities. Attackers exploiting this vulnerability could gain unauthorized access to smart home systems, potentially enabling them to control lighting, heating, security systems, and other connected devices. The implications are particularly severe given that smart home environments often contain personal data about users' daily routines, security configurations, and private living spaces. This vulnerability essentially transforms the secure communication layer into a potential attack vector, allowing adversaries to compromise not just data confidentiality but also the operational integrity of the entire smart home ecosystem.
Mitigation strategies for this vulnerability require immediate implementation of proper SSL certificate validation mechanisms within the application. The fix should involve implementing robust certificate pinning techniques or ensuring that the application performs thorough X.509 certificate validation against trusted certificate authorities. Organizations should also consider implementing certificate transparency monitoring and regular security audits of their mobile applications. From an ATT&CK framework perspective, this vulnerability maps to techniques such as T1046 (Network Service Scanning) and T1566 (Phishing), as attackers can leverage this weakness to establish persistent access points within home networks. The vulnerability also aligns with T1595 (Active Scanning) and T1190 (Exploit Public-Facing Application) as it represents an exploitable weakness in a publicly accessible application that could be leveraged for broader network infiltration. Additionally, this flaw demonstrates the critical importance of following secure coding practices and proper implementation of cryptographic protocols, as outlined in industry standards such as NIST SP 800-57 and ISO/IEC 27001 for information security management.