CVE-2024-37016 in Wireless Door Alarm M70
Summary
by MITRE • 07/15/2024
Mengshen Wireless Door Alarm M70 2024-05-24 allows Authentication Bypass via a Capture-Replay approach.
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Analysis
by VulDB Data Team • 07/15/2024
The Mengshen Wireless Door Alarm M70 device presents a critical authentication bypass vulnerability that stems from its implementation of a capture-replay attack vector. This flaw allows unauthorized users to gain access to the device by capturing legitimate authentication tokens or credentials and replaying them at a later time. The vulnerability specifically affects the 2024-05-24 firmware version and represents a significant weakness in the device's security architecture that undermines its core purpose of providing physical security.
The technical implementation of this vulnerability involves the device's failure to properly validate the freshness of authentication credentials or tokens. When legitimate users authenticate to the device, the system generates tokens that should be time-bound or contain unique session identifiers to prevent replay attacks. However, the M70 device appears to accept previously captured tokens without sufficient validation mechanisms, creating an authentication bypass scenario. This weakness directly relates to CWE-346, which addresses the lack of validation of data freshness in authentication systems, and aligns with ATT&CK technique T1078.004, which covers valid accounts used for unauthorized access.
The operational impact of this vulnerability extends beyond simple unauthorized access to the device's configuration interface. An attacker who successfully exploits this vulnerability can potentially manipulate door alarm settings, disable security features, or gain persistent access to the security system. This creates a significant risk for physical security breaches, as the attacker could potentially disable alarms, modify access controls, or even trigger false alarms to disrupt security operations. The device's wireless communication capabilities further amplify the risk, as attackers may be able to exploit this vulnerability from remote locations without requiring physical access to the device.
Mitigation strategies for this vulnerability should focus on implementing proper session management and token validation mechanisms within the device firmware. The firmware should incorporate time-based validation of authentication tokens, implement unique session identifiers, and utilize challenge-response authentication protocols to prevent replay attacks. Additionally, network-level security measures including encrypted communication protocols and regular firmware updates should be implemented to address the vulnerability. Organizations should also consider implementing network segmentation and monitoring to detect anomalous authentication patterns that might indicate exploitation attempts. The vulnerability highlights the importance of robust authentication design principles and proper security testing of IoT devices before deployment in critical security applications.