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CVE-2025-28059: Access Control Vulnerability in Nagios Network Analyzer

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Overview

The alert pertains to a significant access control vulnerability identified in the 2024R1.0.3 version of Nagios Network Analyzer. The vulnerability, tracked as CVE-2025-28059, can potentially lead to unauthorized access to system resources and functions, impacting the integrity of the system. The flaw is particularly concerning for businesses and organizations that utilize this software for network analysis, as it could lead to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-28059
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthorized access to restricted system functions, potential system compromise and data leakage

Affected Products

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Product | Affected Versions

Nagios Network Analyzer | 2024R1.0.3

How the Exploit Works

The exploit takes advantage of an access control flaw in Nagios Network Analyzer. When a user account is deleted by an administrator, the system fails to invalidate the active sessions and revoke associated API tokens. This means a user whose account has been deleted can still access system resources via these stale sessions and tokens, leading to potential unauthorized access to restricted functions.

Conceptual Example Code

The following example presents a conceptual representation of how an HTTP request might be manipulated to exploit this vulnerability:

GET /restricted_function HTTP/1.1
Host: target.example.com
Authorization: Bearer <stale_token>
{ "user": "deleted_user" }

In this example, `` would be the API token still valid after the user account deletion. The server, not properly invalidating these stale tokens, will grant access to the `deleted_user` to the `restricted_function` endpoint.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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