CVE-2021-41313 : Security Advisory and Response

CVE-2021-41313 pertains to an Improper Authorization vulnerability in Atlassian Jira Server and Data Center, allowing authenticated but unauthorized remote attackers to edit email batch configurations.

Understanding CVE-2021-41313

This CVE involves a specific vulnerability that affects Atlassian products, enabling unauthorized users to perform certain administrative actions.

What is CVE-2021-41313?

The vulnerability in Atlassian Jira Server and Data Center allows authenticated non-admin remote attackers to edit email batch configurations through a particular endpoint.

The Impact of CVE-2021-41313

This security flaw can be exploited by malicious actors to gain unauthorized access to email batch configurations, potentially leading to data manipulation or leakage.

Technical Details of CVE-2021-41313

The technical aspects of the CVE.

Vulnerability Description

The vulnerability is categorized as an Improper Authorization issue (CWE-285) within Atlassian products, specifically affecting versions prior to 8.20.7.

Affected Systems and Versions

Vendor: Atlassian
Affected Products: Jira Server, Jira Data Center
Vulnerable Versions: Before 8.20.7

Exploitation Mechanism

The vulnerability allows authenticated but unauthorized attackers to exploit the /secure/admin/ConfigureBatching!default.jspa endpoint to manipulate email batch configurations.

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Upgrade affected Jira Server and Data Center instances to version 8.20.7 or later.
Monitor and review email batch configurations for any unauthorized changes.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct security training to raise awareness about improper authorization vulnerabilities.

Patching and Updates

Apply security patches released by Atlassian promptly to address known vulnerabilities.