CVE-2021-43950 : What You Need to Know

This CVE involves a security vulnerability in Atlassian Jira Service Management Server and Data Center that allows authenticated remote attackers to access import source configuration information.

Understanding CVE-2021-43950

What is CVE-2021-43950?

Affected versions of Atlassian Jira Service Management Server and Data Center have a Broken Access Control vulnerability in the Insight Import Source feature, enabling attackers to view import source configuration.

The Impact of CVE-2021-43950

Exploiting this vulnerability could lead to unauthorized access to sensitive configuration information, potentially compromising the confidentiality and integrity of data stored in Jira Service Management instances.

Technical Details of CVE-2021-43950

Vulnerability Description

The vulnerability arises from improper access control in the Insight Import Source feature, allowing authenticated attackers to view import source configuration settings.

Affected Systems and Versions

Atlassian Jira Service Management Server versions less than 4.21.0
Atlassian Jira Service Management Data Center versions less than 4.21.0

Exploitation Mechanism

Authenticated remote attackers can exploit the vulnerability to access import source configuration details.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to Atlassian Jira Service Management Server and Data Center versions 4.21.0 or newer.
Monitor access logs for any suspicious activities related to the import source feature.

Long-Term Security Practices

Implement the principle of least privilege to restrict access to sensitive configuration settings.
Regularly review and update access control policies to prevent unauthorized access.

Patching and Updates

Stay informed about security patches and updates released by Atlassian for Jira Service Management to address known vulnerabilities.