CVE-2021-43947 : Vulnerability Insights and Analysis

CVE-2021-43947, published on January 5, 2022, involves an RCE vulnerability in Atlassian Jira Server and Data Center versions. Attackers with administrator privileges can exploit the Email Templates feature to execute arbitrary code.

Understanding CVE-2021-43947

This CVE discloses a critical Remote Code Execution vulnerability in Atlassian Jira Server and Data Center, potentially leading to serious security breaches.

What is CVE-2021-43947?

Affected versions of Jira Server and Data Center allow malicious actors with admin rights to run arbitrary code through an RCE flaw in the Email Templates feature.

The Impact of CVE-2021-43947

The security breach permits unauthorized execution of code by attackers with administrative permissions, compromising system integrity and confidentiality.

Technical Details of CVE-2021-43947

Details about the vulnerability, affected systems, and how exploitation occurs.

Vulnerability Description

An RCE vulnerability in Email Templates enables threat actors to execute code with elevated privileges in Jira Server and Data Center.

Affected Systems and Versions

Products: Jira Server, Jira Data Center
Vulnerable Versions: Before 8.13.15, 8.14.0 to 8.20.3

Exploitation Mechanism

Hackers can leverage administrator access to exploit the Email Templates feature, executing malicious code remotely.

Mitigation and Prevention

How to address and prevent the impact of CVE-2021-43947.

Immediate Steps to Take

Upgrade Jira Server and Data Center to versions 8.13.15, 8.14.0, or above
Monitor system logs for unusual activities

Long-Term Security Practices

Implement the principle of least privilege for user access
Conduct regular security audits and penetration testing

Patching and Updates

Apply security patches promptly to prevent exploitation of known vulnerabilities