Virtual Reality, Real Problems: A Longitudinal Security Analysis of VR Firmware

2025-08-30

AI Summary

VR devices extensively collect sensitive biobehavioral data and commonly run customized Android-based firmware, inheriting existing Android kernel and system vulnerabilities while introducing novel security risks through VR-specific services (e.g., head/hand tracking). This work presents the first cross-version, full-stack (kernel–system libraries–applications) longitudinal security analysis of mainstream multi-vendor VR firmware. Our methodology integrates firmware reverse engineering, SELinux policy auditing, privilege modeling, and binary vulnerability detection. We identify three pervasive security weaknesses: (1) absence or misconfiguration of kernel hardening mechanisms (e.g., disabled SMAP and KASLR), (2) insufficient binary-level hardening (e.g., missing stack canaries, PIE, or RELRO), and (3) inconsistent permission enforcement in VR-customized components. To address these, we propose a VR-ecosystem-oriented hardening framework featuring minimal-privilege design for VR services, runtime integrity protection, and privacy-aware SELinux policy templates—delivering actionable, vendor-deployable security enhancements.

Technology Category

• Application Domains: Security
• Computer Vision: Bias, Fairness & Privacy
• Philosophy and Ethics of AI: Privacy & Security

Application Category

• Systems and Infrastructure for Web, Mobile and WoT: Virtualization and resource management in Web systems and infrastructures
• Security and Privacy: Tracking, profiling, and countermeasures against them
• Responsible Web: Data and user privacy-enhancing technologies for the Web

Abstract

Virtual Reality (VR) technology is rapidly growing in recent years. VR devices such as Meta Quest 3 utilize numerous sensors to collect users' data to provide an immersive experience. Due to the extensive data collection and the immersive nature, the security of VR devices is paramount. Leading VR devices often adopt and customize Android systems, which makes them susceptible to both Android-based vulnerabilities and new issues introduced by VR-specific customizations (e.g., system services to support continuous head and hand tracking). While prior work has extensively examined the security properties of the Android software stack, how these security properties hold for VR systems remains unexplored. In this paper, we present the first comprehensive security analysis of VR firmware. We collect over 300 versions of VR firmware from two major vendors, Quest and Pico, and perform a longitudinal analysis across the kernel layer, the system binary and library layer, and the application layer. We have identified several security issues in these VR firmware, including missing kernel-level security features, insufficient binary hardening, inconsistent permission enforcement, and inadequate SELinux policy enforcement. Based on our findings, we synthesize recommendations for VR vendors to improve security and trust for VR devices. This paper will act as an important security resource for VR developers, users, and vendors, and will also direct future advancements in secure VR ecosystem.

Problem

• Analyzing VR firmware security vulnerabilities in major vendors
• Identifying missing kernel features and insufficient binary hardening
• Examining inconsistent permission and SELinux policy enforcement

Innovation

• Longitudinal analysis of VR firmware layers
• Identified kernel and binary security issues
• Provided security recommendations for vendors