CVE-2026-34397 Himmelblau本地权限提升漏洞

# PoC to check if the current user is resolved as a member of a privileged group (e.g., sudo) # due to the CVE-2026-34397 naming collision. import subprocess import sys def check_vulnerability(): # Define a list of common privileged group names to check privileged_groups = ['sudo', 'wheel', 'docker', 'adm', 'root'] print("[*] Checking group memberships via NSS...") try: # Execute 'id -Gn' to get all group names the current user belongs to result = subprocess.run(['id', '-Gn'], capture_output=True, text=True, check=True) user_groups = set(result.stdout.strip().split()) # Check if any of the user's groups match the privileged list found_privileged = user_groups.intersection(privileged_groups) if found_privileged: print(f"[+] Potential Vulnerability Detected!") print(f"[+] User is resolved in the following privileged groups: {', '.join(found_privileged)}") print(f"[+] All groups: {', '.join(user_groups)}") return True else: print("[-] No privileged group resolution detected via NSS.") print(f"[-] Current groups: {', '.join(user_groups)}") return False except subprocess.CalledProcessError as e: print(f"[!] Error executing command: {e}") return False except Exception as e: print(f"[!] Unexpected error: {e}") return False if __name__ == "__main__": is_vulnerable = check_vulnerability() sys.exit(0 if is_vulnerable else 1)