CVE-2020-4028 : Security Advisory and Response
Learn about CVE-2020-4028, an Information Disclosure vulnerability in Atlassian's Jira Server and Data Center versions before 8.9.1, potentially allowing unauthorized access to sensitive information.
This CVE involves an Information Disclosure vulnerability in Atlassian's Jira Server and Data Center versions prior to 8.9.1, potentially allowing unauthorized attackers to determine the existence of certain resources.
Understanding CVE-2020-4028
This CVE, published on June 17, 2020, highlights a security issue in Jira Server and Data Center.
What is CVE-2020-4028?
CVE-2020-4028 refers to a scenario where various resources in Jira may respond with a 404 error instead of redirecting unauthenticated users to the login page. This behavior could enable unauthorized individuals to ascertain the presence of specific resources, leading to an Information Disclosure vulnerability.
The Impact of CVE-2020-4028
The vulnerability could allow unauthenticated attackers to gain insights into the existence of certain resources within Jira, potentially compromising sensitive information.
Technical Details of CVE-2020-4028
This section delves into the specifics of the vulnerability.
Vulnerability Description
Before version 8.9.1, Jira resources may have exposed an Information Disclosure vulnerability by responding with a 404 error instead of redirecting unauthenticated users to the login page.
Affected Systems and Versions
- Product: Jira Server and Data Center
- Vendor: Atlassian
- Versions Affected: Prior to 8.9.1
Exploitation Mechanism
Unauthorized attackers could exploit this vulnerability to determine the existence of specific resources within Jira, potentially accessing sensitive information.
Mitigation and Prevention
To address CVE-2020-4028, consider the following steps:
Immediate Steps to Take
- Upgrade Jira Server and Data Center to version 8.9.1 or later.
- Monitor for any unauthorized access or unusual activities.
Long-Term Security Practices
- Regularly update and patch Jira installations to mitigate potential vulnerabilities.
- Implement access controls and authentication mechanisms to restrict unauthorized access.
Patching and Updates
- Apply security patches and updates provided by Atlassian promptly to ensure the latest security enhancements.