Wednesday, May 7, 2025
HomeCyber Security NewsNagios Monitoring Tool Vulnerabilities Let Attackers Perform SQL Injection

Nagios Monitoring Tool Vulnerabilities Let Attackers Perform SQL Injection

Published on

SIEM as a Service

Follow Us on Google News

Nagios XI is a prominent and frequently used commercial monitoring system for IT infrastructure and network monitoring. 

Vulnerability Research Engineer Astrid Tedenbrant found four distinct vulnerabilities in Nagios XI (version 5.11.1 and below) while conducting routine research.

By making use of three of these flaws classified as (CVE-2023-40931, CVE-2023-40933, and CVE-2023-40934), users with various levels of access rights can get access to the database field via SQL injection.

- Advertisement - Google News

Additionally, the vulnerability (CVE-2023-40932) permits Cross-Site Scripting through the Custom Logo component, rendering on all pages, including the login page.

Details of the Vulnerabilities

SQL Injection in Banner acknowledging endpoint (CVE-2023-40931)

“Announcement Banners” are a feature of Nagios XI that users may choose to recognize. This feature’s endpoint is susceptible to a SQL Injection attack.

When a user acknowledges a banner, a POST request is made to ‘/nagiosxi/admin/banner_message-ajaxhelper.php’ with the POST data ‘action=acknowledge banner message&id=3’.

“The ID parameter is assumed to be trusted but comes directly from the client without sanitization”, the researcher explains.

“This leads to a SQL Injection where an authenticated user with low or no privileges can retrieve sensitive data, such as from the `xi_session` and `xi_users` table containing data such as emails, usernames, hashed passwords, API tokens, and backend tickets”.

SQL Injection in Host/Service Escalation in CCM (CVE-2023-40934)

An authorized user with access to control host escalations can run any database query using Nagios XI’s Core Configuration Manager.

The same database access is possible through this vulnerability as through previous SQL Injection vulnerabilities, although it necessitates more privileges than CVE-2023-40931.

SQL Injection in Announcement Banner Settings (CVE-2023-40933)

In this case, while performing the `update_banner_message_settings` action on the affected endpoint, the `id` parameter is assumed to be trusted and is concatenated into a database query with no sanitization. This allows an attacker to modify the query, the researcher said.

Compared to CVE-2023-40931, successful exploitation of this vulnerability needs more privileges but provides the same database access as the other two SQL Injection Vulnerabilities.

Cross-Site Scripting in Custom Logo Component (CVE-2023-40932)

Reports say Nagios XI may be modified to include a unique corporate logo, which will be visible across the entire product. Included in this are the login page, various administration pages, and the landing page.

A cross-site scripting flaw in this functionality allows an attacker to inject arbitrary JavaScript, which any user’s browser will be able to execute.

“This can be used to read and modify page data, as well as perform actions on behalf of the affected user. Plain-text credentials can be stolen from users’ browsers as they enter them.,” reports said.

Fix Available

All of these vulnerabilities have been fixed, and users are encouraged to update to 5.11.2 or later.

The commercial version of the open-source Nagios Core monitoring platform, Nagios XI, offers more functionality that makes managing complicated IT settings easier.

Because of the access that Nagios XI requires, it is frequently used in highly privileged instances, making it an attractive target for attackers.

Keep informed about the latest Cyber Security News by following us on Google NewsLinkedinTwitter, and Facebook.

Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Latest articles

Severe Kibana Flaw Allowed Attackers to Run Arbitrary Code

A newly disclosed security vulnerability in Elastic’s Kibana platform has put thousands of businesses...

IT Worker from Computacenter Let Girlfriend Into Deutsche Bank’s Restricted Areas

A former information technology manager has filed a whistleblower lawsuit alleging a major security...

NSO Group Ordered to Pay $168 Million to WhatsApp in US Spyware Verdict

A federal jury in California has ordered Israeli spyware maker NSO Group to pay...

BFDOOR Malware Targets Organizations to Establish Long-Term Persistence

The BPFDoor malware has emerged as a significant threat targeting domestic and international organizations,...

Resilience at Scale

Why Application Security is Non-Negotiable

The resilience of your digital infrastructure directly impacts your ability to scale. And yet, application security remains a critical weak link for most organizations.

Application Security is no longer just a defensive play—it’s the cornerstone of cyber resilience and sustainable growth. In this webinar, Karthik Krishnamoorthy (CTO of Indusface) and Phani Deepak Akella (VP of Marketing – Indusface), will share how AI-powered application security can help organizations build resilience by

Discussion points


Protecting at internet scale using AI and behavioral-based DDoS & bot mitigation.
Autonomously discovering external assets and remediating vulnerabilities within 72 hours, enabling secure, confident scaling.
Ensuring 100% application availability through platforms architected for failure resilience.
Eliminating silos with real-time correlation between attack surface and active threats for rapid, accurate mitigation

More like this

Severe Kibana Flaw Allowed Attackers to Run Arbitrary Code

A newly disclosed security vulnerability in Elastic’s Kibana platform has put thousands of businesses...

IT Worker from Computacenter Let Girlfriend Into Deutsche Bank’s Restricted Areas

A former information technology manager has filed a whistleblower lawsuit alleging a major security...

NSO Group Ordered to Pay $168 Million to WhatsApp in US Spyware Verdict

A federal jury in California has ordered Israeli spyware maker NSO Group to pay...