CVE-2016-5053 in Lightify Home
Summary
by MITRE
OSRAM SYLVANIA Osram Lightify Home before 2016-07-26 allows remote attackers to execute arbitrary commands via TCP port 4000.
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Analysis
by VulDB Data Team • 08/28/2020
The vulnerability identified as CVE-2016-5053 affects OSRAM SYLVANIA Osram Lightify Home systems prior to version 2016-07-26, representing a critical remote code execution flaw that exposes connected IoT devices to unauthorized command injection attacks. This vulnerability specifically targets TCP port 4000, which serves as the primary communication channel for the lighting system's management interface. The flaw stems from inadequate input validation and authentication mechanisms within the device's firmware, allowing malicious actors to bypass security controls and execute arbitrary commands on affected systems. Security researchers have classified this issue under CWE-78, which addresses improper neutralization of special elements used in OS command injection attacks, highlighting the fundamental weakness in command construction and execution processes.
The operational impact of this vulnerability extends beyond simple unauthorized access, as remote attackers can leverage TCP port 4000 to gain full control over connected lighting infrastructure and potentially use the compromised devices as entry points for broader network infiltration. This presents significant risks for both residential and commercial environments where the Lightify Home systems are deployed, as attackers could manipulate lighting schedules, disable security systems, or use compromised devices as pivoting points for attacking other network components. The vulnerability aligns with ATT&CK technique T1059, which covers command and scripting interpreter, specifically focusing on the execution of malicious commands through compromised network services. Organizations utilizing these devices face potential data breaches, physical security compromises, and extended attack surface expansion, particularly in environments where IoT devices are integrated with critical infrastructure or sensitive networks.
Mitigation strategies for CVE-2016-5053 require immediate deployment of firmware updates from OSRAM SYLVANIA, which address the authentication bypass and command injection vulnerabilities present in the affected versions. Network administrators should implement firewall rules to block external access to TCP port 4000, particularly in environments where the devices are not properly secured or isolated from external networks. Additionally, organizations should conduct comprehensive network segmentation to isolate IoT devices from critical business systems, ensuring that even if one device is compromised, attackers cannot easily move laterally through the network. The vulnerability demonstrates the importance of secure IoT device management practices, including regular firmware updates, network monitoring, and proper access control configurations. Security teams should also implement intrusion detection systems capable of identifying anomalous traffic patterns on port 4000, as this represents a common attack vector for IoT device exploitation. Organizations should consider adopting zero-trust network architectures that verify all communications, regardless of their source, and establish robust device lifecycle management processes to ensure timely patch deployment and security updates across all connected IoT infrastructure.