CVE-2021-23261 Explained : Impact and Mitigation

A detailed overview of CVE-2021-23261, a vulnerability in Crafter CMS that allows authenticated administrators to override the system configuration file, leading to a denial of service.

Understanding CVE-2021-23261

This section covers what CVE-2021-23261 is, its impact, technical details, mitigation, and prevention.

What is CVE-2021-23261?

CVE-2021-23261 is a vulnerability in Crafter CMS that enables authenticated administrators to override the system configuration file, resulting in a denial of service.

The Impact of CVE-2021-23261

The vulnerability poses a medium severity risk with a CVSS base score of 4.5. Authenticated users with high privileges can exploit this issue, causing a significant availability impact.

Technical Details of CVE-2021-23261

This section provides technical insights into the vulnerability including its description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

Authenticated administrators of Crafter CMS can manipulate the system configuration file, leading to a denial of service.

Affected Systems and Versions

Crafter CMS versions less than 3.1.13 are impacted by this vulnerability, specifically version 3.1.

Exploitation Mechanism

Users with high privileges can exploit this vulnerability by overriding the system configuration file, disrupting normal service.

Mitigation and Prevention

Explore the steps to address and prevent CVE-2021-23261, ensuring the security of Crafter CMS installations.

Immediate Steps to Take

Administrators should update Crafter CMS to version 3.1.13 or higher to mitigate the risk of this vulnerability.

Long-Term Security Practices

Regularly review and restrict access to system configuration files, implement principle of least privilege, and monitor for unauthorized changes.

Patching and Updates

Stay informed about security advisories from Crafter Software and apply patches promptly to address known vulnerabilities.