CVE-2020-21976 Explained : Impact and Mitigation

An arbitrary file upload vulnerability in the NewsOne CMS v1.1.0 allows attackers to execute arbitrary commands.

Understanding CVE-2020-21976

This CVE describes a critical security issue in the NewsOne CMS v1.1.0 that enables attackers to upload malicious files and execute commands.

What is CVE-2020-21976?

This CVE refers to an arbitrary file upload vulnerability in the NewsOne CMS v1.1.0, which can be exploited by attackers to execute arbitrary commands on the system.

The Impact of CVE-2020-21976

The vulnerability allows threat actors to upload malicious files, potentially leading to unauthorized access, data theft, and system compromise.

Technical Details of CVE-2020-21976

The technical aspects of the CVE provide insights into the vulnerability and its implications.

Vulnerability Description

The flaw resides in the <input type="file" name="user_image"> component of NewsOne CMS v1.1.0, enabling attackers to upload malicious files and execute arbitrary commands.

Affected Systems and Versions

Affected System: NewsOne CMS v1.1.0
Affected Version: Not specified

Exploitation Mechanism

Attackers can exploit the vulnerability by uploading a malicious file through the vulnerable component, leading to the execution of arbitrary commands.

Mitigation and Prevention

Protecting systems from CVE-2020-21976 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable file uploads in the vulnerable component
Implement input validation to restrict file types
Monitor system logs for suspicious activities

Long-Term Security Practices

Regular security assessments and audits
Keep software and systems updated
Educate users on safe computing practices

Patching and Updates

Apply patches or updates provided by the CMS vendor
Stay informed about security advisories and best practices