CVE-2023-47865 : What You Need to Know
Understand CVE-2023-47865 affecting Mattermost. Learn about the impact, technical details, and mitigation steps. Update to versions 7.8.13, 8.1.4, or higher to stay secure.
A detailed article on CVE-2023-47865 outlining the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2023-47865
This section provides insights into the security vulnerability identified as CVE-2023-47865 affecting Mattermost.
What is CVE-2023-47865?
CVE-2023-47865 highlights a security flaw in Mattermost where the system fails to verify if hardened mode is enabled when allowing users to override their username and icon when posting, potentially leading to unauthorized actions.
The Impact of CVE-2023-47865
The vulnerability in Mattermost could allow members to override their username and icon even with Hardened Mode enabled, posing risks related to unauthorized access and data manipulation.
Technical Details of CVE-2023-47865
Explore the specific technicalities of CVE-2023-47865 to understand its implications better.
Vulnerability Description
Mattermost overlooks the verification of hardened mode when users override their username and icon during post creation, potentially enabling unauthorized actions.
Affected Systems and Versions
The vulnerability affects Mattermost versions 7.8.12 and below. Versions 7.8.13, 8.1.3, and 8.1.4 are either unaffected or have patches available.
Exploitation Mechanism
Attackers could exploit this vulnerability by manipulating username and icon overrides in postings, bypassing the Hardened Mode setting to perform unauthorized actions.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2023-47865.
Immediate Steps to Take
It is advised to update Mattermost Server to versions 7.8.13, 8.1.4, or higher to patch the vulnerability and prevent unauthorized username and icon overrides.
Long-Term Security Practices
Ensure regular security updates and vulnerability assessments to maintain a secure environment and prevent similar issues in the future.
Patching and Updates
Stay informed about security updates and promptly apply patches provided by Mattermost to address CVE-2023-47865.