CVE-2025-15026: Centreon Auth Bypass Vulnerability

CVE-2025-15026 Overview

CVE-2025-15026 is a Missing Authentication for Critical Function vulnerability in Centreon Infra Monitoring's centreon-awie (AWIE import module). This authentication bypass flaw allows unauthenticated attackers to access critical functionality that should be constrained by Access Control Lists (ACLs), potentially leading to complete system compromise.

Critical Impact

Unauthenticated remote attackers can access critical import functions in the Centreon AWIE module, bypassing authentication entirely and potentially gaining full control over the monitoring infrastructure.

Affected Products

• Centreon Infra Monitoring versions 25.10.0 to 25.10.1
• Centreon Infra Monitoring versions 24.10.0 to 24.10.2
• Centreon Infra Monitoring versions 24.04.0 to 24.04.2

Discovery Timeline

• 2026-01-05 - CVE-2025-15026 published to NVD
• 2026-01-08 - Last updated in NVD database

Technical Details for CVE-2025-15026

Vulnerability Analysis

This vulnerability is classified under CWE-306 (Missing Authentication for Critical Function). The AWIE import module in Centreon Infra Monitoring fails to properly authenticate requests to critical functions, allowing unauthorized users to access functionality that should be restricted by ACLs.

The AWIE (Advanced Web Import/Export) module is designed to handle configuration imports and exports for the Centreon monitoring platform. When authentication checks are missing for critical operations, attackers can manipulate monitoring configurations, import malicious data, or extract sensitive infrastructure information without valid credentials.

The network-based attack vector with no required privileges or user interaction makes this vulnerability particularly dangerous in environments where the Centreon instance is network-accessible.

Root Cause

The root cause of this vulnerability is the absence of proper authentication mechanisms in the AWIE import module's critical endpoints. The module exposes functionality without verifying that the requesting user has been authenticated, allowing any network-accessible attacker to invoke these functions directly.

Attack Vector

An attacker with network access to the Centreon web interface can exploit this vulnerability by sending crafted requests directly to the AWIE module endpoints. Since no authentication is required, the attacker can:

1. Access the AWIE import functionality without credentials
2. Bypass ACL restrictions intended to limit access to authorized administrators
3. Potentially import malicious configurations or extract sensitive monitoring data
4. Achieve high impact on confidentiality, integrity, and availability of the monitoring infrastructure

For detailed technical information about exploitation mechanics, refer to the Centreon Security Bulletin CVE-2025-15026.

Detection Methods for CVE-2025-15026

Indicators of Compromise

• Unusual or unexpected requests to AWIE module endpoints from unauthenticated sessions
• Import operations occurring without corresponding authenticated user sessions in logs
• Configuration changes to monitored hosts or services without administrator activity
• Unexpected data exports or access patterns to the AWIE functionality

Detection Strategies

• Monitor web server access logs for requests to AWIE module endpoints, particularly from external or unknown IP addresses
• Implement alerting on configuration imports that occur outside of normal maintenance windows
• Review authentication logs for missing session identifiers on critical AWIE operations
• Deploy web application firewalls (WAF) with rules to detect unauthorized access attempts to the import module

Monitoring Recommendations

• Enable verbose logging for the Centreon AWIE module to capture all access attempts
• Implement network segmentation to restrict access to Centreon management interfaces
• Set up SIEM alerts for patterns of unauthenticated access to critical monitoring functions
• Regularly audit Centreon configuration changes and correlate with authenticated admin sessions

How to Mitigate CVE-2025-15026

Immediate Actions Required

• Upgrade Centreon Infra Monitoring to version 25.10.2, 24.10.3, or 24.04.3 or later immediately
• Restrict network access to the Centreon web interface to trusted management networks only
• Implement additional authentication layers such as VPN or reverse proxy with authentication
• Review logs for any indicators of exploitation prior to patching

Patch Information

Centreon has released patched versions that address this authentication bypass vulnerability:

Download the latest releases from the GitHub Centreon Releases page. Review the Centreon Security Bulletin CVE-2025-15026 for complete remediation guidance.

Workarounds

• Implement network-level access controls to restrict access to the Centreon web interface to authorized administrator IP ranges only
• Deploy a reverse proxy with authentication in front of the Centreon instance to add an additional authentication layer
• Disable the AWIE module temporarily if import/export functionality is not immediately required
• Monitor and alert on all access attempts to AWIE endpoints until patching is complete

# Example: Restrict Centreon access via Apache configuration
# Add to your Apache virtual host configuration
<Location "/centreon/api/internal.php">
    Require ip 10.0.0.0/8
    Require ip 192.168.0.0/16
</Location>

# Alternatively, use firewall rules to restrict access
# iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
# iptables -A INPUT -p tcp --dport 443 -j DROP