CVE-2023-3582 : Vulnerability Insights and Analysis
Learn about CVE-2023-3582, a vulnerability in Mattermost allowing low-privileged users to link boards to private channels without proper verification. Includes impact, affected versions, and mitigation steps.
This CVE record, assigned by Mattermost, pertains to a vulnerability that allows a low-privileged authenticated user to link a board to a private channel without proper channel membership verification.
Understanding CVE-2023-3582
This section delves into the specific details surrounding CVE-2023-3582.
What is CVE-2023-3582?
The vulnerability in Mattermost occurs due to a failure to verify channel membership when linking a board to a channel. This oversight enables a low-privileged authenticated user to link a board to a private channel they do not have access to.
The Impact of CVE-2023-3582
With a CVSSv3.1 base score of 4.3 (Medium severity), the impact of this vulnerability is notable. It has a low attack complexity and requires low privileges, making it exploitable by authenticated users. While the confidentiality impact is none, the integrity impact is rated as low.
Technical Details of CVE-2023-3582
In this section, the technical aspects of CVE-2023-3582 are explored.
Vulnerability Description
The vulnerability stems from Mattermost's inability to verify channel membership when linking boards to channels, enabling unauthorized access.
Affected Systems and Versions
Mattermost versions 7.8.6, 7.9.4, and 7.10.2 are affected by this vulnerability, while versions 7.8.7, 7.9.5, and 7.10.3 and higher are unaffected.
Exploitation Mechanism
An authenticated user with low privileges can exploit this vulnerability by linking a board to a private channel without the necessary access permissions.
Mitigation and Prevention
This section focuses on steps to mitigate and prevent the exploitation of CVE-2023-3582.
Immediate Steps to Take
To address this vulnerability, it is recommended to update the Mattermost Server to versions v7.8.7, v7.9.5, v7.10.3, or higher as provided by Mattermost.
Long-Term Security Practices
Implementing strong access control mechanisms and conducting regular security audits can help prevent similar authorization issues in the future.
Patching and Updates
Regularly applying software updates and patches released by Mattermost is crucial in maintaining a secure environment and safeguarding against known vulnerabilities.