CVE-2021-41560 : What You Need to Know

OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.

Understanding CVE-2021-41560

What is CVE-2021-41560?

OpenCATS through version 0.9.6 is vulnerable to a remote code execution exploit, allowing attackers to upload executable files through lib/FileUtility.php.

The Impact of CVE-2021-41560

This vulnerability permits remote attackers to execute malicious code on the affected system, potentially leading to unauthorized access and data breaches.

Technical Details of CVE-2021-41560

Vulnerability Description

The vulnerability in OpenCATS through 0.9.6 enables threat actors to upload and execute arbitrary code through the specified file, lib/FileUtility.php.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions up to and including 0.9.6 are impacted.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading executable files to the OpenCATS system via the vulnerable lib/FileUtility.php file.

Mitigation and Prevention

Immediate Steps to Take

Disable file uploading functionality if not essential
Implement strict file type validation checks
Regularly monitor and audit file uploads for any suspicious activity

Long-Term Security Practices

Keep OpenCATS updated with the latest patches and security fixes
Conduct regular security assessments and penetration testing to identify and address vulnerabilities

Patching and Updates

Apply the patch provided by OpenCATS to address this vulnerability in version 0.9.6.