CVE-2019-3401 Explained : Impact and Mitigation

CVE-2019-3401 is a vulnerability in Atlassian's Jira software that allows remote attackers to discover usernames by bypassing an incorrect authorization check on the ManageFilters.jspa resource.

Understanding CVE-2019-3401

This CVE affects certain versions of Jira software, potentially exposing user information to unauthorized parties.

What is CVE-2019-3401?

The vulnerability in Jira versions prior to 7.13.3 and from 8.0.0 to 8.1.1 enables remote attackers to enumerate usernames by exploiting an incorrect authorization check on the ManageFilters.jspa resource.

The Impact of CVE-2019-3401

The vulnerability could lead to unauthorized access to user information, compromising the confidentiality of user data within the affected Jira instances.

Technical Details of CVE-2019-3401

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The ManageFilters.jspa resource in Jira versions before 7.13.3 and from 8.0.0 to 8.1.1 allows remote attackers to enumerate usernames due to an incorrect authorization check.

Affected Systems and Versions

Product: Jira
Vendor: Atlassian
Affected Versions:
Versions less than 7.13.3
Version 8.0.0
Versions less than 8.1.1

Exploitation Mechanism

Remote attackers can exploit this vulnerability by bypassing the incorrect authorization check on the ManageFilters.jspa resource, enabling them to discover usernames within the Jira software.

Mitigation and Prevention

To address CVE-2019-3401 and enhance security, follow these mitigation strategies:

Immediate Steps to Take

Upgrade Jira to a version that includes a patch for this vulnerability.
Monitor user access and authentication activities for any suspicious behavior.

Long-Term Security Practices

Regularly update Jira software to the latest secure versions.
Implement strong access controls and authentication mechanisms to prevent unauthorized access.

Patching and Updates

Apply security patches provided by Atlassian promptly to mitigate the vulnerability and enhance system security.