CVE-2020-21481 Explained : Impact and Mitigation

An arbitrary file upload vulnerability in RGCMS v1.06 allows attackers to execute arbitrary code via a crafted .txt file which is later changed to a PHP file.

Understanding CVE-2020-21481

This CVE describes a critical vulnerability in RGCMS v1.06 that enables threat actors to execute malicious code through a specific file upload method.

What is CVE-2020-21481?

The CVE-2020-21481 vulnerability involves an arbitrary file upload issue in RGCMS v1.06, enabling attackers to run unauthorized code by manipulating a .txt file converted to a PHP file.

The Impact of CVE-2020-21481

This vulnerability poses a severe risk as it allows threat actors to execute arbitrary code on the affected system, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2020-21481

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in RGCMS v1.06 permits attackers to upload a malicious .txt file that can be later transformed into a PHP file, facilitating the execution of unauthorized code.

Affected Systems and Versions

Affected Systems: RGCMS v1.06
Affected Versions: Not specified

Exploitation Mechanism

The exploitation of this vulnerability involves uploading a specially crafted .txt file to the system, which is then manipulated to execute arbitrary PHP code.

Mitigation and Prevention

It is crucial to take immediate action to mitigate the risks associated with CVE-2020-21481.

Immediate Steps to Take

Disable file uploads in the application if not essential
Implement file type verification to prevent uploading executable files
Regularly monitor and review uploaded files for suspicious activities

Long-Term Security Practices

Conduct regular security assessments and penetration testing
Keep software and systems up to date with the latest security patches
Educate users and administrators about secure file upload practices

Patching and Updates

Apply patches or updates provided by the software vendor to address the vulnerability
Stay informed about security advisories and best practices to enhance system security