CVE-2021-30635 : What You Need to Know

A remote attacker can exploit CVE-2021-30635 in Sonatype Nexus Repository Manager 3.x before 3.30.1 to retrieve a list of files and directories in a UI-related folder through directory traversal.

Understanding CVE-2021-30635

This section will delve into the details of the security vulnerability identified as CVE-2021-30635 in Sonatype Nexus Repository Manager 3.x.

What is CVE-2021-30635?

CVE-2021-30635 allows a remote attacker to access a list of files and directories in a UI-related folder via directory traversal in Sonatype Nexus Repository Manager 3.x before version 3.30.1. It does not expose any customer-specific data.

The Impact of CVE-2021-30635

The vulnerability could be exploited by malicious actors to gather sensitive information, potentially leading to unauthorized access and further security breaches.

Technical Details of CVE-2021-30635

In this section, we will explore the technical aspects of CVE-2021-30635, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

Sonatype Nexus Repository Manager 3.x before 3.30.1 is susceptible to a directory traversal attack, enabling threat actors to retrieve a directory's contents remotely.

Affected Systems and Versions

The security flaw impacts Sonatype Nexus Repository Manager 3.x versions prior to 3.30.1, exposing them to the risk of unauthorized directory access.

Exploitation Mechanism

By leveraging directory traversal techniques, attackers can manipulate file requests to gain access to sensitive information in UI-related folders.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks posed by CVE-2021-30635 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their Sonatype Nexus Repository Manager to version 3.30.1 or above to mitigate the vulnerability and enhance security.

Long-Term Security Practices

Implementing strict input validation, access controls, and regular security audits can help prevent similar directory traversal attacks in the future.

Patching and Updates

Stay informed about security patches and updates released by Sonatype and promptly apply them to ensure the continued protection of your systems.