CVE-2020-13977 : Vulnerability Insights and Analysis

Nagios 4.4.5 allows an attacker with administrative access to modify the Alert Histogram and Trends code through crafted versions of specific files.

Understanding CVE-2020-13977

This CVE involves a vulnerability in Nagios 4.4.5 that enables an attacker to manipulate certain configuration settings to alter code functionality.

What is CVE-2020-13977?

This CVE pertains to a security flaw in Nagios 4.4.5 that allows an attacker with administrative privileges to change the "URL for JSON CGIs" configuration setting, leading to the modification of the Alert Histogram and Trends code using specific files.

The Impact of CVE-2020-13977

The vulnerability can be exploited by an attacker who already has administrative access, potentially resulting in unauthorized code modifications and security breaches.

Technical Details of CVE-2020-13977

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in Nagios 4.4.5 allows an attacker with administrative access to manipulate the Alert Histogram and Trends code through crafted versions of archivejson.cgi, objectjson.cgi, and statusjson.cgi files.

Affected Systems and Versions

Product: Nagios 4.4.5
Vendor: N/A
Version: N/A

Exploitation Mechanism

The attacker needs administrative access to change the "URL for JSON CGIs" configuration setting to exploit this vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2020-13977 requires immediate actions and long-term security practices.

Immediate Steps to Take

Monitor and restrict administrative access to critical configurations.
Regularly review and update access controls to prevent unauthorized changes.
Implement network segmentation to limit the impact of potential breaches.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Stay informed about security updates and patches for Nagios software.
Educate users on best practices for maintaining secure configurations.

Patching and Updates

Apply relevant patches and updates provided by Nagios to address this vulnerability and enhance system security.