CVE-2020-21881 Explained : Impact and Mitigation

CVE-2020-21881 is a Cross Site Request Forgery (CSRF) vulnerability in admin.php in DuxCMS 2.1, allowing remote attackers to modify application data via article/admin/content/add.

Understanding CVE-2020-21881

What is CVE-2020-21881?

The CVE-2020-21881 vulnerability is a CSRF issue in DuxCMS 2.1 that permits unauthorized remote users to alter application data through a specific URL.

The Impact of CVE-2020-21881

This vulnerability can lead to unauthorized modifications of application data, potentially compromising the integrity and confidentiality of the system.

Technical Details of CVE-2020-21881

Vulnerability Description

The CSRF flaw in admin.php of DuxCMS 2.1 enables attackers to manipulate application data through a crafted request.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions are affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking authenticated users into visiting a malicious website or clicking on a crafted link, leading to unauthorized data modifications.

Mitigation and Prevention

Immediate Steps to Take

Implement CSRF tokens to validate requests and prevent unauthorized actions.
Regularly monitor and review application logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Educate users about safe browsing practices and the risks associated with clicking on unknown links.

Patching and Updates

Apply patches or updates provided by the software vendor to fix the CSRF vulnerability in DuxCMS 2.1.