CVE-2025-34273
📋 TL;DR
Nagios Log Server versions before 2024R2.0.3 have an authorization flaw that lets non-admin users delete global dashboards. This affects all organizations using vulnerable Nagios Log Server instances where multiple users have dashboard access.
💻 Affected Systems
- Nagios Log Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Malicious insider or compromised account deletes all global dashboards, disrupting monitoring visibility and potentially hiding security incidents from administrators.
Likely Case
Accidental or intentional deletion of important monitoring dashboards by authorized non-admin users, causing operational disruption and requiring dashboard restoration.
If Mitigated
Limited impact if dashboards are regularly backed up and can be quickly restored, though still causes temporary monitoring gaps.
🎯 Exploit Status
Requires authenticated access as any non-admin user. Exploitation involves accessing dashboard deletion functionality that should be restricted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024R2.0.3 or later
Vendor Advisory: https://www.nagios.com/changelog/#log-server
Restart Required: No
Instructions:
1. Backup current configuration and dashboards. 2. Download Nagios Log Server 2024R2.0.3 or later from Nagios website. 3. Follow Nagios upgrade documentation for your deployment type. 4. Verify authorization checks are working post-upgrade.
🔧 Temporary Workarounds
Restrict dashboard access
allLimit non-admin user access to dashboard management functions through role-based controls
Review and modify user permissions in Nagios Log Server admin interface
🧯 If You Can't Patch
- Implement strict access controls and monitor dashboard deletion activities
- Regularly backup dashboard configurations and maintain restore procedures
🔍 How to Verify
Check if Vulnerable:
Check Nagios Log Server version in admin interface or via command line. Versions below 2024R2.0.3 are vulnerable.Check Version:
Check web interface admin panel or consult Nagios Log Server documentation for version check commands specific to your installation.Verify Fix Applied:
After upgrading to 2024R2.0.3+, test with non-admin account that dashboard deletion is properly restricted.📡 Detection & Monitoring
Log Indicators:
- Log entries showing dashboard deletion by non-admin users
- Unauthorized access attempts to dashboard management endpoints
Network Indicators:
- HTTP requests to dashboard deletion API endpoints from non-admin accounts
SIEM Query:
source="nagios_log_server" AND (event_type="dashboard_delete" OR uri_path="/dashboards/delete") AND user_role!="admin"