CVE-2021-42183 : Security Advisory and Response

MasaCMS 7.2.1 is affected by a path traversal vulnerability that allows unauthorized access to files.

Understanding CVE-2021-42183

What is CVE-2021-42183?

MasaCMS 7.2.1 contains a security flaw that enables attackers to traverse the file system using a specific URL.

The Impact of CVE-2021-42183

The vulnerability can lead to unauthorized access to sensitive files and data, potentially exposing private information.

Technical Details of CVE-2021-42183

Vulnerability Description

The path traversal vulnerability in MasaCMS 7.2.1 is present in the /index.cfm/_api/asset/image/ path, allowing attackers to access files outside the intended directory.

Affected Systems and Versions

Product: MasaCMS
Version: 7.2.1

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the URL path to access files on the server that are not meant to be public.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by MasaCMS promptly.
Restrict access to sensitive directories and files.
Monitor and log file access to detect suspicious activities.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential weaknesses.
Educate users and administrators on secure coding practices and data protection.
Implement access controls and encryption to safeguard sensitive information.

Patching and Updates

Ensure that MasaCMS is updated to the latest version containing fixes for the path traversal vulnerability.