CVE-2023-45223 : Security Advisory and Response
Learn about CVE-2023-45223, a vulnerability in Mattermost Boards allowing user full name disclosure despite 'Show Full Name' option being disabled. Find mitigation steps here.
A detailed overview of CVE-2023-45223, its impact, technical details, and mitigation steps.
Understanding CVE-2023-45223
This section provides insight into the vulnerability identified in Mattermost that allows disclosure of a user's full name through Mattermost Boards even with the 'Show Full Name' option disabled.
What is CVE-2023-45223?
CVE-2023-45223 highlights a failure in validating the 'Show Full Name' option in specific endpoints within Mattermost Boards, enabling a user to access another user's full name despite the setting being disabled.
The Impact of CVE-2023-45223
The vulnerability poses a medium risk with a CVSS base score of 4.3. It can lead to exposure of sensitive information, specifically the full name of users, to unauthorized individuals.
Technical Details of CVE-2023-45223
Explore the key technical aspects of CVE-2023-45223 to understand the vulnerability better.
Vulnerability Description
Mattermost's failure to validate the 'Show Full Name' option in certain endpoints allows users to retrieve another user's full name, disregarding the intended privacy setting.
Affected Systems and Versions
Versions 7.8.12 and 8.1.3 of Mattermost are impacted, while versions 7.8.13 and 8.1.4 remain unaffected by this vulnerability.
Exploitation Mechanism
The vulnerability's low attack complexity and network-based attack vector make it easier for attackers to exploit, requiring minimal privileges and no user interaction.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2023-45223 and prevent exploitation.
Immediate Steps to Take
Administrators are advised to update Mattermost Server to versions 7.8.13, 8.1.4, or higher to address the vulnerability and protect user data.
Long-Term Security Practices
Regularly monitor for security updates and patches from Mattermost to stay protected against potential vulnerabilities in the future.
Patching and Updates
Stay informed about security advisories and updates from Mattermost to promptly apply patches and secure the platform against known threats.