CVE-2019-20403 : Security Advisory and Response

An information disclosure vulnerability in the API of Atlassian Jira Server and Data Center prior to version 8.6.0 allows remote attackers to ascertain the presence or absence of a Jira project key.

Understanding CVE-2019-20403

This CVE involves an information disclosure vulnerability in Atlassian Jira Server and Data Center.

What is CVE-2019-20403?

The vulnerability in Atlassian Jira Server and Data Center before version 8.6.0 enables remote attackers to determine the existence of a Jira project key.

The Impact of CVE-2019-20403

The vulnerability poses a risk of exposing sensitive project information to unauthorized parties.

Technical Details of CVE-2019-20403

This section provides technical details of the CVE.

Vulnerability Description

The API in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to determine the presence of a Jira project key through an information disclosure vulnerability.

Affected Systems and Versions

Product: Jira Server
Vendor: Atlassian
Versions Affected: Less than 8.6.0 (unspecified version type)

Exploitation Mechanism

The vulnerability can be exploited remotely by attackers to discern the existence of a Jira project key.

Mitigation and Prevention

Protect your systems from CVE-2019-20403 with the following steps:

Immediate Steps to Take

Upgrade Atlassian Jira Server and Data Center to version 8.6.0 or higher.
Monitor and restrict access to sensitive project information.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Implement access controls and authentication mechanisms to prevent unauthorized access.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of information disclosure.