CVE-2021-43941 Explained : Impact and Mitigation
Learn about CVE-2021-43941 affecting Atlassian Jira Server and Data Center, allowing remote attackers to modify resources via a CSRF vulnerability. Take immediate steps to upgrade versions and implement security practices.
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to modify several resources via a Cross-Site Request Forgery (CSRF) vulnerability.
Understanding CVE-2021-43941
What is CVE-2021-43941?
CVE-2021-43941 pertains to a CSRF vulnerability in Atlassian Jira Server and Data Center that enables remote attackers to alter various resources.
The Impact of CVE-2021-43941
The vulnerability allows unauthorized users to manipulate resources like CsvFieldMappingsPage.jspa and ImporterValueMappingsPage.jspa through CSRF attacks.
Technical Details of CVE-2021-43941
Vulnerability Description
The issue affects versions of Jira Server and Data Center prior to 8.13.15 and versions from 8.14.0 to 8.20.3.
Affected Systems and Versions
- Product: Jira Server
- Versions before 8.13.15
- Versions from 8.14.0 to 8.20.3
- Product: Jira Data Center
- Versions before 8.13.15
- Versions from 8.14.0 to 8.20.3
Exploitation Mechanism
The vulnerability allows attackers to perform unauthorized modifications to resources, leading to potential data breaches or unauthorized changes.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Jira Server and Data Center to version 8.20.3 or newer.
- Implement CSRF protection mechanisms.
Long-Term Security Practices
- Regularly monitor for unauthorized changes in Jira configurations.
- Train users on identifying and reporting suspicious activities.
Patching and Updates
Apply security patches promptly to ensure protection against known vulnerabilities.