CVE-2020-36289 : Exploit Details and Defense Strategies

Atlassian Jira Server and Data Center versions before 8.5.13, from 8.6.0 before 8.13.5, and from 8.14.0 before 8.15.1 are affected by an Information Disclosure vulnerability.

Understanding CVE-2020-36289

This CVE identifies a security issue in Atlassian Jira Server and Data Center that allows unauthorized users to enumerate users through a specific endpoint.

What is CVE-2020-36289?

The vulnerability in Atlassian Jira Server and Data Center enables unauthenticated users to gather user information via the QueryComponentRendererValue!Default.jspa endpoint.

The Impact of CVE-2020-36289

The vulnerability poses a risk of exposing sensitive user data to unauthorized individuals, potentially leading to privacy breaches and targeted attacks.

Technical Details of CVE-2020-36289

This section provides detailed technical insights into the CVE.

Vulnerability Description

The vulnerability allows unauthenticated users to enumerate users through the QueryComponentRendererValue!Default.jspa endpoint in Atlassian Jira Server and Data Center.

Affected Systems and Versions

Atlassian Jira Server versions before 8.5.13
Atlassian Jira Server versions from 8.6.0 before 8.13.5
Atlassian Jira Server versions from 8.14.0 before 8.15.1

Exploitation Mechanism

Unauthorized users can exploit the vulnerability by accessing the QueryComponentRendererValue!Default.jspa endpoint to extract user information.

Mitigation and Prevention

Protect your systems from CVE-2020-36289 with the following measures.

Immediate Steps to Take

Upgrade Atlassian Jira Server and Data Center to versions 8.5.13, 8.13.5, or 8.15.1 to mitigate the vulnerability.
Monitor user enumeration attempts and investigate any suspicious activities.

Long-Term Security Practices

Implement strict access controls to limit unauthorized access to sensitive endpoints.
Regularly update and patch Atlassian Jira Server and Data Center to address security vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Atlassian to ensure the ongoing protection of your systems.