CVE-2021-26071 Explained : Impact and Mitigation

A detailed overview of the CVE-2021-26071 vulnerability affecting Jira Server and Data Center versions prior to specific releases.

Understanding CVE-2021-26071

This section covers the impact, technical details, and mitigation steps related to the CVE-2021-26071 vulnerability.

What is CVE-2021-26071?

The SetFeatureEnabled.jspa resource in Jira Server and Data Center before certain versions allows remote attackers to manipulate Jira Software configuration through a CSRF vulnerability.

The Impact of CVE-2021-26071

The vulnerability permits anonymous remote attackers to enable or disable Jira Software configuration via CSRF attacks.

Technical Details of CVE-2021-26071

This section provides insights into the vulnerability description, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability exists in specific versions of Jira Server and Data Center, enabling remote attackers to perform unauthorized configuration changes.

Affected Systems and Versions

Jira Server and Data Center versions before 8.5.13, between 8.6.0 and 8.13.5, and between 8.14.0 and 8.15.1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers exploit a CSRF vulnerability in SetFeatureEnabled.jspa to manipulate Jira Software configuration remotely.

Mitigation and Prevention

Learn about the immediate steps to take and long-term security practices to safeguard systems from CVE-2021-26071.

Immediate Steps to Take

Patch or update Jira instances to versions 8.5.13, 8.13.5, or 8.15.1 to address the vulnerability and prevent exploitation.

Long-Term Security Practices

Implement robust CSRF protection mechanisms, maintain regular security updates, and monitor for unauthorized configuration changes.

Patching and Updates

Regularly apply security patches and updates provided by Atlassian to mitigate the risk of CSRF attacks.