CVE-2018-12673 in L-SERIES HD CAMERA
Summary
by MITRE
An attacker with remote access to the SV3C HD Camera (L-SERIES V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B) web interface can disclose information about the camera including camera hardware, wireless network, and local area network information.
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Analysis
by VulDB Data Team • 04/05/2020
The vulnerability identified as CVE-2018-12673 represents a critical information disclosure flaw in SV3C HD Camera models, specifically affecting L-SERIES firmware versions V2.3.4.2103-S50-NTD-B20170508B and V2.3.4.2103-S50-NTD-B20170823B. This vulnerability stems from inadequate access controls and improper authentication mechanisms within the camera's web interface, allowing unauthenticated remote attackers to gain unauthorized access to sensitive system information. The flaw exists due to the camera's failure to properly validate user credentials or implement appropriate authorization checks before serving sensitive data, creating a direct pathway for information leakage that violates fundamental security principles of least privilege and access control.
The technical implementation of this vulnerability manifests through the camera's web server component which fails to properly secure endpoints responsible for exposing hardware specifications, wireless network configurations, and local network details. Attackers can exploit this weakness by directly accessing specific URL paths or API endpoints without requiring valid authentication credentials, effectively bypassing the device's intended security boundaries. This type of vulnerability maps directly to CWE-200, which defines weaknesses related to exposure of sensitive information, and represents a clear violation of the principle that system information should only be accessible to authorized personnel. The flaw demonstrates poor input validation and insufficient access control mechanisms, as the web interface does not properly separate public from private information or implement proper session management controls.
The operational impact of CVE-2018-12673 extends beyond simple information disclosure, creating significant risks for network security and privacy. When an attacker can obtain detailed hardware specifications, they gain valuable intelligence for planning more sophisticated attacks against the device or the broader network infrastructure. Wireless network information disclosure allows adversaries to understand the network topology, SSID configurations, and potentially identify weak encryption methods or default credentials. Local area network information provides insights into IP addressing schemes, network segmentation, and potential internal network mapping opportunities. This vulnerability directly aligns with ATT&CK technique T1082, which covers system information discovery, and T1592, which addresses reconnaissance using network information discovery. The exposure of such information creates opportunities for lateral movement attacks, network mapping, and targeted exploitation of other vulnerable systems within the same network segment.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security enhancements. The primary recommendation involves firmware updates from the vendor to implement proper authentication mechanisms and access controls within the web interface. Network segmentation should be implemented to isolate these devices from critical network segments, reducing the potential impact of information disclosure. Additionally, administrators should disable unnecessary web services and implement firewall rules that restrict access to camera management interfaces to trusted IP addresses only. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in networked devices, while proper network monitoring should be implemented to detect unauthorized access attempts. The vulnerability demonstrates the importance of applying security patches promptly and maintaining comprehensive asset inventories to ensure all networked devices receive appropriate updates and security configurations.