CVE-2025-6531 in BD S1
Summary
by MITRE • 06/24/2025
A vulnerability was found in SIFUSM/MZZYG BD S1 up to 20250611. It has been declared as problematic. This vulnerability affects unknown code of the component RTSP Live Video Stream Endpoint. The manipulation leads to improper access controls. Access to the local network is required for this attack to succeed. The exploit has been disclosed to the public and may be used. This dashcam is distributed by multiple resellers and different names.
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Analysis
by VulDB Data Team • 06/27/2025
The vulnerability identified as CVE-2025-6531 affects the SIFUSM/MZZYG BD S1 dashcam device, a security-sensitive embedded system designed for video surveillance and monitoring applications. This particular model represents a consumer-grade automotive dashcam that has been found to contain a critical access control flaw within its RTSP live video stream endpoint component. The device operates as a networked surveillance appliance that streams real-time video feeds over RTSP protocols, making it a potential target for unauthorized network intrusions. The vulnerability was discovered in firmware versions up to 20250611, indicating that this flaw has persisted through multiple release cycles without adequate remediation. The device's widespread distribution through multiple resellers and various brand names suggests a significant attack surface, as numerous end users may be unknowingly exposed to this security weakness.
The technical flaw manifests as improper access controls within the RTSP live video stream endpoint functionality, which serves as the primary interface for video data transmission and network communication. This represents a direct violation of the principle of least privilege and authorization controls, creating a scenario where unauthorized parties can potentially access the device's video streams without proper authentication. The vulnerability specifically affects the component responsible for managing real-time video streaming endpoints, which typically should enforce strict access controls and authentication mechanisms. The improper access control implementation allows for unauthenticated access to the video feed, potentially enabling attackers to capture sensitive visual data from vehicles, roads, or other locations where these devices are deployed. This flaw aligns with CWE-284, which describes improper access control vulnerabilities, and represents a critical weakness in the device's security architecture.
The operational impact of this vulnerability extends beyond simple unauthorized video access, as it creates a persistent security risk for all users of affected devices. Attackers requiring only local network access can exploit this vulnerability to gain access to live video streams, potentially compromising privacy and security of individuals captured in the footage. The device's deployment in automotive environments means that sensitive information about vehicle occupants, traffic conditions, and locations may be exposed to unauthorized parties. The public disclosure of exploitation methods further amplifies the risk, as malicious actors can readily implement attacks against vulnerable devices without requiring specialized knowledge or tools. The widespread distribution of this device through multiple resellers creates a significant number of potential attack vectors, making it a prime target for cybercriminals seeking to exploit surveillance systems. This vulnerability essentially transforms a legitimate security device into a potential surveillance tool for unauthorized parties, undermining the fundamental purpose of the device.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from the manufacturer, though the public disclosure of exploitation methods suggests that users may need to implement additional network security measures. Organizations and individuals should consider implementing network segmentation to isolate these devices from critical systems and limit the attack surface. Network monitoring should be enhanced to detect unauthorized access attempts and unusual traffic patterns associated with RTSP protocol usage. The implementation of network access controls and firewall rules can help restrict access to the device's ports and services. Users should also consider disabling unnecessary network services and ensuring that devices are properly configured with strong authentication mechanisms where available. Given the nature of the vulnerability and the device's deployment environment, it may be necessary to physically secure devices and implement additional layers of protection to prevent unauthorized access to the network infrastructure where these devices operate. This vulnerability demonstrates the critical importance of proper access control implementation in embedded systems and the need for continuous security assessment of networked devices.