CVE-2019-20864 : Exploit Details and Defense Strategies
Learn about CVE-2019-20864, a vulnerability in Mattermost Plugins prior to 5.13.0 allowing unauthorized users to link their accounts with others. Find mitigation steps here.
A vulnerability has been identified in the previous versions of Mattermost Plugins (prior to 5.13.0) related to the GitHub plugin, allowing unauthorized users to link their Mattermost account with someone else's GitHub account.
Understanding CVE-2019-20864
This CVE identifies a security issue in Mattermost Plugins that could lead to account linking vulnerabilities.
What is CVE-2019-20864?
CVE-2019-20864 is a vulnerability in Mattermost Plugins prior to version 5.13.0, specifically affecting the GitHub plugin. It enables an unauthorized user to associate their Mattermost account with another user's GitHub account.
The Impact of CVE-2019-20864
The vulnerability could result in unauthorized access to sensitive information on the linked GitHub account, potentially leading to data breaches and misuse of the compromised accounts.
Technical Details of CVE-2019-20864
This section provides technical insights into the vulnerability.
Vulnerability Description
An issue in Mattermost Plugins before version 5.13.0 allows attackers to attach their Mattermost account to a different person's GitHub account through the GitHub plugin.
Affected Systems and Versions
- Affected Version: Mattermost Plugins prior to 5.13.0
Exploitation Mechanism
Unauthorized users can exploit this vulnerability to link their Mattermost account with another user's GitHub account, potentially gaining unauthorized access.
Mitigation and Prevention
Protect your systems and data from CVE-2019-20864 with the following measures:
Immediate Steps to Take
- Upgrade Mattermost Plugins to version 5.13.0 or newer to mitigate the vulnerability.
- Monitor account activities for any unauthorized linkages.
Long-Term Security Practices
- Regularly update and patch all software components to prevent security vulnerabilities.
- Educate users on the importance of secure account practices and permissions.
Patching and Updates
Ensure timely installation of security patches and updates to address known vulnerabilities and enhance system security.