CVE-2021-29395 : What You Need to Know

A directory traversal vulnerability has been identified in NorthStar Club Management 6.3 by Northstar Technologies Inc. This vulnerability allows remote unauthenticated users to download arbitrary files, including sensitive JSP source code, from the host's filesystem through the /northstar/filemanager/download.jsp endpoint.

Understanding CVE-2021-29395

This section provides an overview of the CVE-2021-29395 vulnerability.

What is CVE-2021-29395?

The CVE-2021-29395 vulnerability involves a directory traversal issue in the NorthStar Club Management 6.3 software, enabling unauthorized users to retrieve various files, including JSP source code, by exploiting the /northstar/filemanager/download.jsp endpoint.

The Impact of CVE-2021-29395

The impact of this vulnerability is severe as it allows remote attackers to access sensitive files stored on the host system, potentially leading to unauthorized information disclosure and further exploitation.

Technical Details of CVE-2021-29395

In this section, we delve into the technical aspects of CVE-2021-29395.

Vulnerability Description

The vulnerability in /northstar/filemanager/download.jsp in NorthStar Club Management 6.3 allows adversaries to perform directory traversal attacks and download arbitrary files, including critical JSP source code, from the host's filesystem.

Affected Systems and Versions

The affected system is NorthStar Club Management 6.3 by Northstar Technologies Inc, and the specific version impacted is 6.3.

Exploitation Mechanism

Remote unauthenticated users can exploit this vulnerability by sending specially crafted requests to the /northstar/filemanager/download.jsp endpoint, bypassing security controls and accessing files beyond their privileges.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent exploitation of CVE-2021-29395.

Immediate Steps to Take

Immediately restrict access to the /northstar/filemanager/download.jsp endpoint and conduct a thorough investigation to identify any unauthorized access or data exfiltration.

Long-Term Security Practices

Implement robust access controls and security mechanisms to prevent directory traversal attacks and regularly update and patch the NorthStar Club Management software to address known vulnerabilities.

Patching and Updates

Apply security patches provided by Northstar Technologies Inc to fix the directory traversal issue in NorthStar Club Management 6.3 and enhance the overall security posture of the application.