CVE-2025-46774 FortiClient MacOS安装器加密签名验证不当漏洞

# CVE-2025-46774 PoC Concept - FortiClient MacOS Privilege Escalation # Note: This is a conceptual proof-of-concept based on the vulnerability description. # The vulnerability exists in FortiClient MacOS installer due to improper # verification of cryptographic signatures (CWE-347). import os import subprocess import sys # Step 1: Identify FortiClient installation paths FORTICLIENT_PATHS = [ "/Library/Application Support/Fortinet/FortiClient/", "/Applications/FortiClient.app/Contents/Resources/", "/usr/local/bin/fctupdate" ] def find_forticlient_executables(): """Locate FortiClient-related executables on the system.""" found_executables = [] for path in FORTICLIENT_PATHS: if os.path.exists(path): for root, dirs, files in os.walk(path): for file in files: full_path = os.path.join(root, file) if os.access(full_path, os.X_OK): found_executables.append(full_path) return found_executables def check_signature(executable_path): """Check the code signature of an executable.""" try: result = subprocess.run( ["codesign", "-dv", "--verbose=4", executable_path], capture_output=True, text=True ) return result.returncode == 0 except Exception as e: return False def exploit_concept(): """ Conceptual exploitation flow: 1. Locate FortiClient executables 2. Identify those with weak signature verification 3. Replace or symlink with malicious payload 4. Trigger execution via FortiClient installer mechanism 5. Achieve privilege escalation """ executables = find_forticlient_executables() print(f"[*] Found {len(executables)} FortiClient executables") for exe in executables: signed = check_signature(exe) if not signed: print(f"[!] Unsigned executable found: {exe}") # In a real exploit, attacker would replace this with # a malicious binary that gets executed with elevated privileges print("[*] PoC concept demonstration complete") print("[*] Refer to Fortinet PSIRT FG-IR-25-126 for official guidance") if __name__ == "__main__": if os.geteuid() == 0: print("[!] Already running as root") else: print(f"[*] Current UID: {os.geteuid()}") exploit_concept()