CVE-2021-42261 Explained : Impact and Mitigation

Revisor Video Management System (VMS) before 2.0.0 is impacted by a directory traversal vulnerability that could lead to sensitive data disclosure.

Understanding CVE-2021-42261

Revisor VMS has a security issue that allows attackers to access files outside the restricted directory, potentially compromising sensitive data.

What is CVE-2021-42261?

The vulnerability in Revisor VMS before version 2.0.0 enables malicious actors to navigate the file system beyond the intended boundaries, leading to unauthorized access to sensitive information on the server.

The Impact of CVE-2021-42261

Exploiting this vulnerability can result in the exposure of confidential data stored on the affected server, posing a significant risk to the security and integrity of the system.

Technical Details of CVE-2021-42261

Revisor VMS's directory traversal vulnerability is detailed below:

Vulnerability Description

Directory traversal flaw in Revisor VMS before 2.0.0
Allows attackers to access files/directories outside the restricted path

Affected Systems and Versions

Product: Revisor Video Management System
Vendor: N/A
Version: before 2.0.0

Exploitation Mechanism

Successful exploitation permits unauthorized access to sensitive files
Attackers can traverse the file system to reach restricted data

Mitigation and Prevention

To safeguard systems from this vulnerability, consider the following:

Immediate Steps to Take

Update Revisor VMS to version 2.0.0 or above
Implement access controls and restrict directory permissions

Long-Term Security Practices

Regularly monitor system logs for unusual activities
Conduct security audits to identify and address vulnerabilities proactively

Patching and Updates

Apply security patches promptly to mitigate known vulnerabilities in software