Learn about CVE-2023-40932, a critical Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and prior versions. Understand the impact, technical details, and mitigation steps.
A Cross-site scripting (XSS) vulnerability in Nagios XI version 5.11.1 and below allows authenticated attackers to inject arbitrary javascript or HTML, potentially leading to credential theft.
Understanding CVE-2023-40932
This CVE identifies a critical XSS vulnerability in Nagios XI that can be exploited by authenticated attackers to execute malicious code.
What is CVE-2023-40932?
The CVE-2023-40932 is a Cross-site scripting (XSS) vulnerability found in Nagios XI version 5.11.1 and prior versions. It enables authenticated attackers to inject arbitrary javascript or HTML through the alt-text field, affecting various pages including the login page.
The Impact of CVE-2023-40932
The impact of this vulnerability is significant as it allows attackers to potentially steal plaintext credentials of users who interact with the affected pages.
Technical Details of CVE-2023-40932
This section delves into specific technical aspects of the CVE.
Vulnerability Description
The vulnerability arises from insufficient input sanitization, allowing attackers to inject and execute malicious code.
Affected Systems and Versions
Nagios XI version 5.11.1 and prior are affected by this vulnerability, leaving all instances running these versions vulnerable.
Exploitation Mechanism
Attackers with access to the custom logo component can exploit this vulnerability by injecting malicious scripts or HTML code into the alt-text field.
Mitigation and Prevention
To address and prevent exploitation of CVE-2023-40932, certain measures need to be implemented.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Keep the Nagios XI software updated with the latest security patches and fixes to mitigate the risk of exploitation.