CVE-2019-20464 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. By default, a mobile application is used to stream over UDP. However, the device offers many more services that also enable streaming. Although the service used by the mobile application requires a password, the other streaming services do not. By initiating communication on the RTSP port, an attacker can obtain access to the video feed without authenticating.
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Analysis
by VulDB Data Team • 08/01/2024
The vulnerability identified as CVE-2019-20464 affects Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices, representing a critical security flaw in embedded network streaming services. This issue demonstrates a classic authentication bypass vulnerability where default configurations fail to enforce proper access controls across multiple streaming protocols. The device's design includes multiple streaming services that operate over different network ports, creating an attack surface that extends beyond the intended mobile application interface. The mobile application utilizes a password-protected UDP streaming service, establishing a baseline security expectation, but other streaming services lack equivalent authentication mechanisms, creating a significant security gap.
The technical flaw stems from improper service configuration where the Real Time Streaming Protocol (RTSP) port operates without mandatory authentication, allowing unauthenticated access to video feeds. This vulnerability falls under CWE-287 which addresses improper authentication issues in network services. The RTSP protocol typically requires authentication for access to streaming resources, yet this device fails to implement proper authentication checks on its RTSP port. Attackers can exploit this by simply initiating communication on the RTSP port without providing credentials, thereby gaining immediate access to the video stream. The attack vector is particularly concerning as it requires minimal technical expertise and can be executed remotely, making it accessible to both skilled and less experienced threat actors.
The operational impact of this vulnerability extends beyond simple privacy concerns to encompass potential physical security risks and data breaches. An attacker with access to the video feed can monitor activities in real-time, potentially identifying patterns of behavior, security vulnerabilities in physical locations, or sensitive information about occupants. This exposure creates risk for both residential and commercial environments where such cameras are deployed. The vulnerability also demonstrates poor defense-in-depth principles, as the device should have implemented consistent authentication mechanisms across all streaming services rather than relying on a single secure channel while leaving others unprotected. This flaw directly relates to ATT&CK technique T1566 which covers credential harvesting through network-based attacks, and T1046 which involves network service scanning to identify accessible ports.
Mitigation strategies should focus on implementing comprehensive authentication across all streaming services, including the RTSP port and other streaming protocols. Network administrators should disable unnecessary streaming services and ensure that all ports exposed to external networks require proper authentication mechanisms. The device should be configured to enforce strong authentication requirements for all streaming services, with proper access control lists implemented to restrict access to authorized users only. Regular security audits should verify that all network services are properly secured and that default configurations do not expose sensitive functionality. Additionally, network segmentation should be implemented to isolate security camera networks from general computing environments, reducing the attack surface and limiting potential lateral movement if other vulnerabilities are present. Organizations should also consider implementing network monitoring solutions that can detect unauthorized access attempts to streaming ports and generate alerts for security personnel to investigate potential breaches.