CVE-2020-4029 : Exploit Details and Defense Strategies

Atlassian Jira Server and Data Center versions before 8.5.5, from 8.6.0 to 8.7.2, and from 8.8.0 to 8.8.1 are affected by an improper authorization vulnerability.

Understanding CVE-2020-4029

This CVE involves a security issue in Atlassian Jira Server and Data Center that allows remote attackers to enumerate project names due to improper authorization.

What is CVE-2020-4029?

The vulnerability in the /rest/project-templates/1.0/createshared resource in Atlassian Jira Server and Data Center versions before 8.5.5, from 8.6.0 to 8.7.2, and from 8.8.0 to 8.8.1 enables attackers to discover project names through unauthorized access.

The Impact of CVE-2020-4029

This vulnerability poses a risk of exposing sensitive project information to unauthorized parties, potentially leading to data breaches and security compromises.

Technical Details of CVE-2020-4029

Atlassian Jira Server and Data Center versions are susceptible to unauthorized project name enumeration due to an improper authorization flaw.

Vulnerability Description

The /rest/project-templates/1.0/createshared resource in affected versions allows remote attackers to enumerate project names through unauthorized access.

Affected Systems and Versions

Atlassian Jira Server and Data Center versions before 8.5.5
Versions from 8.6.0 to 8.7.2
Versions from 8.8.0 to 8.8.1

Exploitation Mechanism

Attackers can exploit this vulnerability remotely to gather project names without proper authorization, potentially compromising sensitive information.

Mitigation and Prevention

To address CVE-2020-4029, follow these steps:

Immediate Steps to Take

Upgrade Atlassian Jira Server and Data Center to version 8.5.5, 8.7.2, or 8.8.1 to mitigate the vulnerability.
Monitor and restrict access to sensitive project information.

Long-Term Security Practices

Regularly review and update access controls and permissions within Jira Server and Data Center.
Conduct security assessments to identify and address any authorization vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Atlassian to ensure the latest security fixes are in place.