CVE-2018-12671 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 all password sets set within the camera. This information can then be used to gain access to the web interface.
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Analysis
by VulDB Data Team • 04/05/2020
This vulnerability represents a critical security flaw in SV3C HD Camera firmware versions 2.3.4.2103-S50-NTD-B20170508B and 2.3.4.2103-S50-NTD-B20170823B, where improper access controls allow remote attackers to extract sensitive authentication credentials. The vulnerability stems from insufficient input validation and authentication mechanisms within the web interface, creating an information disclosure channel that exposes all password sets configured within the device. This weakness aligns with CWE-200, which addresses improper information disclosure, and falls under the broader category of weak authentication mechanisms that enable unauthorized access to networked devices.
The technical implementation of this flaw involves the web interface failing to properly validate user credentials or implement adequate access controls when processing requests for camera configuration data. Attackers can exploit this vulnerability remotely without requiring physical access or prior authentication, making it particularly dangerous for surveillance deployments where cameras are often exposed to external networks. The disclosed information includes all password sets configured within the camera system, which provides attackers with comprehensive access credentials that could be used to gain full administrative control over the device and potentially compromise the entire surveillance network.
The operational impact of this vulnerability extends beyond individual camera compromise, as it enables attackers to establish persistent access to surveillance systems that may be protecting critical infrastructure or sensitive locations. Once credentials are obtained, attackers can manipulate camera settings, disable security features, or use the compromised devices as entry points for lateral movement within networked environments. This vulnerability particularly affects organizations relying on SV3C cameras for security monitoring, as it undermines the fundamental security assumptions of networked surveillance equipment and creates opportunities for advanced persistent threats to establish footholds within protected facilities. The ability to remotely access password information without authentication aligns with ATT&CK technique T1078.004, which covers legitimate credentials obtained through exploitation of remote services.
Mitigation strategies should include immediate firmware updates from SV3C to address the identified information disclosure vulnerability, along with network segmentation to isolate camera devices from general network access. Organizations should implement strong access controls and regularly audit camera configurations to ensure that default credentials are changed and unnecessary services are disabled. Network monitoring should be enhanced to detect unusual access patterns or unauthorized configuration changes, while security policies should mandate regular credential rotation and access control reviews for all networked security devices. The vulnerability highlights the importance of secure configuration management and proper access control implementation in IoT and surveillance devices, as outlined in NIST SP 800-125 guidelines for securing networked devices.