CVE-2020-26031 Explained : Impact and Mitigation

An issue was discovered in Zammad before 3.4.1. The global-search feature leaks Knowledge Base drafts to Knowledge Base readers with insufficient permissions.

Understanding CVE-2020-26031

This CVE identifies a security vulnerability in Zammad that could lead to unauthorized access to Knowledge Base drafts.

What is CVE-2020-26031?

The vulnerability in Zammad before version 3.4.1 allows authenticated users with limited permissions to view Knowledge Base drafts through the global-search feature.

The Impact of CVE-2020-26031

This vulnerability could result in unauthorized access to sensitive information contained in Knowledge Base drafts by users who should not have permission to view them.

Technical Details of CVE-2020-26031

Zammad's security flaw is detailed below:

Vulnerability Description

The global-search functionality in Zammad before version 3.4.1 exposes Knowledge Base drafts to unauthorized users with restricted permissions.

Affected Systems and Versions

Product: Zammad
Vendor: N/A
Versions affected: N/A

Exploitation Mechanism

Unauthorized users with limited permissions can exploit the global-search feature to access Knowledge Base drafts they are not authorized to view.

Mitigation and Prevention

To address CVE-2020-26031, follow these steps:

Immediate Steps to Take

Upgrade Zammad to version 3.4.1 or later to mitigate the vulnerability.
Review and adjust user permissions to restrict access to sensitive information.

Long-Term Security Practices

Regularly review and update user permissions to ensure proper access control.
Conduct security training for users to raise awareness of data protection practices.

Patching and Updates

Stay informed about security advisories from Zammad and apply patches promptly to address any known vulnerabilities.