Cloud Defense Logo

Products

Solutions

Company

Book A Live Demo

CVE-2021-21307 : Vulnerability Insights and Analysis

Critical CVE-2021-21307 allows unauthenticated remote code exploit in Lucee Admin. Understand the impact, technical details, and mitigation steps to secure your systems.

A critical vulnerability in Lucee Admin allows for unauthenticated remote code exploit, affecting versions before 5.3.7.47, 5.3.6.68, or 5.3.5.96. Learn more about the impact, technical details, and mitigation steps below.

Understanding CVE-2021-21307

This CVE identifies a remote code exploit in Lucee Admin, impacting versions before 5.3.7.47, 5.3.6.68, or 5.3.5.96.

What is CVE-2021-21307?

Lucee Server, a Java-based web development platform, is vulnerable to unauthenticated remote code exploitation in versions prior to 5.3.7.47, 5.3.6.68, or 5.3.5.96.

The Impact of CVE-2021-21307

The vulnerability poses a high severity risk with a CVSS base score of 8.6, allowing attackers to execute remote code without authentication.

Technical Details of CVE-2021-21307

The technical aspects of the vulnerability include:

Vulnerability Description

An unauthenticated remote code exploit in Lucee Admin versions before 5.3.7.47, 5.3.6.68, or 5.3.5.96.

Affected Systems and Versions

Versions of Lucee Server affected are >= 5.3.5.0, < 5.3.5.96, >= 5.3.6.0, < 5.3.6.68, and >= 5.3.7.0, < 5.3.7.47.

Exploitation Mechanism

Attack complexity is low, with a network vector and high integrity impact, requiring no user privileges.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-21307, consider the following steps:

Immediate Steps to Take

Update Lucee Server to versions 5.3.7.47, 5.3.6.68, or 5.3.5.96. Alternatively, block access to the Lucee Administrator.

Long-Term Security Practices

Regularly update Lucee Server and implement secure coding practices to prevent future vulnerabilities.

Patching and Updates

Stay informed about security advisories regarding Lucee Server and apply patches promptly to protect against known vulnerabilities.

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now