CVE-2019-20465 in Smart HD Wifi Security Camera EAN 2
Summary
by MITRE • 04/02/2021
An issue was discovered on Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices. It is possible (using TELNET without a password) to control the camera's pan/zoom/tilt functionality.
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Analysis
by VulDB Data Team • 07/30/2024
This vulnerability exists within Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices where unauthorized remote access to camera control functions can be achieved through unauthenticated telnet connections. The flaw represents a critical security weakness that allows attackers to manipulate the camera's pan/zoom/tilt functionality without requiring any authentication credentials, effectively providing complete control over the device's physical movement capabilities. This vulnerability directly violates fundamental security principles by enabling privilege escalation through default unsecured administrative interfaces.
The technical implementation of this vulnerability stems from the device's failure to properly enforce authentication mechanisms for its telnet service. When telnet is enabled on the camera, it operates without requiring any password validation, creating an open backdoor that attackers can exploit to gain administrative control. This misconfiguration allows remote attackers to establish connections and issue commands that directly manipulate the camera's mechanical components, including pan, zoom, and tilt movements, which can be used for surveillance purposes or to compromise the device's operational integrity. The vulnerability is categorized under CWE-259 as the use of hard-coded passwords, though in this case it's more accurately described as the absence of authentication altogether. This weakness enables attackers to perform operations that fall under ATT&CK technique T1078 for Valid Accounts and T1082 for System Information Discovery, as well as T1046 for Network Service Scanning.
The operational impact of this vulnerability is severe and multifaceted. Attackers can remotely control camera positioning to monitor specific areas, potentially violating privacy and security protocols. The ability to manipulate pan/zoom/tilt functions allows for targeted surveillance that could be used for reconnaissance or to compromise the security of the surrounding environment. Additionally, since the camera's movement controls are accessible without authentication, attackers could potentially cause physical damage to the device through excessive movement or manipulate the camera to obscure critical surveillance areas. The vulnerability also poses risks to network security as it could serve as an entry point for further attacks within the local network, potentially enabling lateral movement and privilege escalation. This represents a significant risk for organizations relying on these cameras for security purposes, as the device becomes a potential vector for malicious activity.
Mitigation strategies should prioritize immediate actions to disable or secure the telnet service on affected devices. Network administrators should disable telnet access entirely and implement alternative secure management protocols such as SSH for remote administration. Devices should be updated with firmware patches that enforce proper authentication mechanisms and disable default administrative accounts. Network segmentation should be implemented to isolate security camera networks from general business networks, reducing the attack surface. Regular security audits should be conducted to ensure telnet services remain disabled and that authentication mechanisms are properly configured. Organizations should also implement network monitoring to detect unauthorized telnet connections and establish incident response procedures for handling potential exploitation attempts. The vulnerability highlights the importance of following security best practices such as the principle of least privilege and the defense-in-depth approach, ensuring that all network services are properly secured against unauthorized access attempts.