CVE-2020-28911 Explained : Impact and Mitigation
Learn about CVE-2020-28911 affecting Nagios Fusion 4.1.8 and earlier versions, allowing low-privileged users to extract passwords. Find mitigation steps and prevention measures here.
Nagios Fusion 4.1.8 and earlier versions are affected by an Incorrect Access Control vulnerability that allows low-privileged authenticated users to extract passwords via a specific command.
Understanding CVE-2020-28911
This CVE identifies a security issue in Nagios Fusion versions 4.1.8 and earlier.
What is CVE-2020-28911?
The vulnerability in Nagios Fusion 4.1.8 and earlier enables authenticated users with low privileges to extract passwords used for managing fused servers through a specific command in ajaxhelper.php.
The Impact of CVE-2020-28911
The vulnerability could lead to unauthorized access to sensitive information, potentially compromising the security of the system and the data it manages.
Technical Details of CVE-2020-28911
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability arises from Incorrect Access Control in Nagios Fusion 4.1.8 and earlier, allowing unauthorized password extraction by low-privileged authenticated users.
Affected Systems and Versions
- Product: Nagios Fusion
- Vendor: Nagios
- Versions affected: 4.1.8 and earlier
Exploitation Mechanism
The vulnerability can be exploited by authenticated users with low privileges using the test_server command in ajaxhelper.php to extract passwords.
Mitigation and Prevention
Protecting systems from CVE-2020-28911 is crucial to maintaining security.
Immediate Steps to Take
- Update Nagios Fusion to the latest version that includes a patch for this vulnerability.
- Monitor system logs for any suspicious activities related to unauthorized password extraction.
- Restrict access to sensitive commands and functionalities to authorized personnel only.
Long-Term Security Practices
- Regularly review and update access control policies to prevent similar vulnerabilities.
- Conduct security training for users to raise awareness about the risks associated with unauthorized data extraction.
Patching and Updates
- Stay informed about security updates and patches released by Nagios for Nagios Fusion.
- Implement a robust patch management process to promptly apply security fixes to the system.