CVE-2019-20846 Explained : Impact and Mitigation
Discover the impact of CVE-2019-20846 on Mattermost Server. Learn about the vulnerability, affected versions, exploitation risks, and mitigation steps to secure your system.
Prior to version 5.18.0, a vulnerability was identified in Mattermost Server related to inadequate permissions in server-local file storage.
Understanding CVE-2019-20846
An issue was discovered in Mattermost Server before version 5.18.0, where weak permissions for server-local file storage could lead to exploitation.
What is CVE-2019-20846?
The vulnerability in Mattermost Server before version 5.18.0 allows attackers to exploit inadequate permissions in server-local file storage.
The Impact of CVE-2019-20846
The vulnerability exposes the server to potential exploitation due to weak permissions in file storage.
Technical Details of CVE-2019-20846
Vulnerability Description
The issue in Mattermost Server before 5.18.0 arises from insufficient permissions in server-local file storage.
Affected Systems and Versions
- Product: Mattermost Server
- Versions affected: Before 5.18.0
Exploitation Mechanism
Attackers can exploit the vulnerability by leveraging the inadequate permissions in server-local file storage.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Mattermost Server to version 5.18.0 or later to address the vulnerability.
- Review and adjust file storage permissions to ensure adequate security.
Long-Term Security Practices
- Regularly monitor and update file storage permissions to prevent similar vulnerabilities.
Patching and Updates
- Stay informed about security updates from Mattermost and promptly apply patches to secure the server.