CVE-2019-11393 : Security Advisory and Response

A vulnerability was found in M/Monit version 3.7.3 and earlier, allowing regular users to elevate their privileges to administrator level.

Understanding CVE-2019-11393

What is CVE-2019-11393?

An issue was discovered in M/Monit before version 3.7.3, specifically in the /admin/users/update functionality, enabling unprivileged users to escalate their privileges to an administrator by manipulating a password change request.

The Impact of CVE-2019-11393

This vulnerability could lead to unauthorized access and potential misuse of administrative privileges within the M/Monit system.

Technical Details of CVE-2019-11393

Vulnerability Description

The vulnerability in M/Monit version 3.7.3 and earlier allows regular users to exploit the /admin/users/update functionality to gain administrator privileges by manipulating password change requests.

Affected Systems and Versions

Product: M/Monit
Vendor: N/A
Versions affected: 3.7.3 and earlier

Exploitation Mechanism

Unprivileged users can escalate their privileges by requesting a password change and specifying the admin parameter.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to the latest version of M/Monit to eliminate the vulnerability.
Monitor user activities and privilege changes closely.

Long-Term Security Practices

Implement least privilege access controls to limit user capabilities.
Regularly review and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.