CVE-2021-25971 Explained : Impact and Mitigation

Camaleon CMS - SVG File Upload Creates DoS for Media Upload Feature

Understanding CVE-2021-25971

Camaleon CMS versions 2.0.1 to 2.6.0 are vulnerable to an Uncaught Exception when handling specially crafted .svg files during media upload.

What is CVE-2021-25971?

The vulnerability in Camaleon CMS allows a low-privileged attacker to crash the media upload feature by uploading a malicious .svg file, resulting in a denial of service.

The Impact of CVE-2021-25971

With a CVSS base score of 4.3 (Medium severity), this vulnerability can disrupt the media upload functionality, affecting the availability of the application.

Technical Details of CVE-2021-25971

The following technical details shed light on the vulnerability within Camaleon CMS:

Vulnerability Description

Camaleon CMS versions 2.0.1 to 2.6.0 are susceptible to an Uncaught Exception triggered by a specially crafted .svg file uploaded by a low-privileged user.

Affected Systems and Versions

Product: camaleon_cms
Vendor: camaleon_cms
Vulnerable Versions: 2.0.1 to 2.6.0

Exploitation Mechanism

An attacker with low privileges can exploit the vulnerability by uploading a manipulated .svg file, causing the media upload feature to crash.

Mitigation and Prevention

To safeguard your system from CVE-2021-25971, consider the following mitigation strategies:

Immediate Steps to Take

Update Camaleon CMS to version 2.6.0.1 to eliminate the vulnerability and prevent DoS attacks via media uploads.

Long-Term Security Practices

Regularly monitor for security advisories and apply updates promptly to stay protected against known vulnerabilities.

Patching and Updates

Stay informed about security patches and new releases from Camaleon CMS to address potential security risks timely.