VRVul-Discovery: BiLSTM-based Vulnerability Discovery for Virtual Reality Devices in Metaverse

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The rapid development of the metaverse has brought about numerous security challenges. Virtual Reality (VR) , as one of the core technologies, plays a crucial role in the metaverse. The security of VR devices directly impacts user authentication and privacy. Currently, no attention has been paid to the vulnerabilities and security risks of VR devices. This article employs a bi-layer BiLSTM neural network to conduct a root cause analysis for user authentication and scene interaction when users enter metaverse environment using VR devices. By establishing the mapping between vulnerable VR firmware file attributes and metaverse interaction scenarios, we implement a vulnerability discovery and verification prototype called VRVul-Discovery, based on the concept of vulnerability discovery. Experiment results demonstrate that VRVul-Discovery provides high-accuracy determinations of firmware vulnerability attributes and scenarios susceptible to hijacking. In the end, the prototype system discovers seven unknown vulnerabilities, all of which are authenticated.