CVE-2018-6296 in Smartcam
Summary
by MITRE
An undocumented (hidden) capability for switching the web interface in Hanwha Techwin Smartcams
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Analysis
by VulDB Data Team • 05/27/2020
The vulnerability identified as CVE-2018-6296 represents a critical security flaw in Hanwha Techwin Smartcams that exposes an undocumented administrative function through the web interface. This hidden capability allows unauthorized users to gain administrative access to the camera system without proper authentication, fundamentally undermining the device's security architecture. The flaw exists within the web interface implementation where developers inadvertently left accessible administrative functions that should have been properly secured or removed from the public interface. This type of vulnerability falls under the category of insecure direct object references and improper access control mechanisms, as outlined in CWE-284 and CWE-639 categories.
The technical exploitation of this vulnerability occurs through manipulation of the web interface parameters that control administrative access. Attackers can leverage the hidden administrative functions to perform actions such as changing system configurations, modifying user accounts, accessing video streams, or even resetting the device to factory defaults. The flaw demonstrates poor security-by-design principles where administrative functions were not properly secured or were exposed through unintended interface pathways. This vulnerability directly impacts the CIA triad by compromising confidentiality through unauthorized access to sensitive video data, integrity through potential configuration changes, and availability through possible device disruption. The exposure of such functionality suggests inadequate security testing and code review processes during the development lifecycle.
The operational impact of this vulnerability extends beyond individual device compromise to potentially affect entire network infrastructures where multiple Hanwha Techwin Smartcams are deployed. Organizations using these devices for security monitoring face significant risks including unauthorized surveillance access, data breaches, and potential use as entry points for broader network attacks. The hidden nature of the functionality makes detection particularly challenging for network administrators who may not be aware of its existence. This vulnerability aligns with ATT&CK technique T1078 which covers legitimate credentials use, as attackers can leverage the hidden administrative interface to maintain persistent access. The risk is compounded by the fact that these devices are often deployed in sensitive environments such as corporate offices, retail locations, and industrial facilities where unauthorized access could lead to significant operational and financial consequences.
Mitigation strategies for CVE-2018-6296 require immediate action including firmware updates from Hanwha Techwin that properly secure the administrative interface and remove the undocumented functionality. Organizations should conduct comprehensive network audits to identify all affected devices and implement network segmentation to limit access to these cameras. Additional security measures include disabling unnecessary web interface access, implementing strong authentication mechanisms, and monitoring network traffic for suspicious activity related to camera administration. The vulnerability highlights the importance of thorough security testing including penetration testing and code review processes that should identify and eliminate hidden administrative functions. Network administrators should also consider implementing intrusion detection systems specifically configured to monitor for access attempts to camera administrative interfaces, as the exploitation of such vulnerabilities often generates detectable network traffic patterns.