2025-02-24
Mattermost, a popular collaboration platform, has been found to have a critical vulnerability that allows attackers to read arbitrary files on the system. This vulnerability is related to the improper validation of board blocks when importing boards. Specifically, Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, and 10.2.x <= 10.2.2 are affected. An attacker could exploit this by importing and exporting a specially crafted import archive in Boards, leading to unauthorized access to sensitive files.
The vulnerability was published by the National Vulnerability Database 12 hours ago and added to the GitHub Advisory Database 11 hours ago. It was reviewed and updated 2 hours ago. Patched versions include 8.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, and 10.4.2. Users are strongly advised to update to these patched versions to mitigate the risk.
Form:
Platform: Mattermost
Version: <10.4.2
Vulnerability: Arbitrary File Read
Severity: Critical
Date: Feb 24, 2025
What Undercode Say:
Mattermost, a widely used collaboration platform, has been identified with a critical vulnerability that allows attackers to read arbitrary files on the system. This issue stems from improper validation of board blocks during the import process. The affected versions include 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, and 10.2.x <= 10.2.2. Attackers can exploit this flaw by crafting a malicious import archive, enabling them to access sensitive files without authorization.
The vulnerability was disclosed by the National Vulnerability Database and GitHub Advisory Database within the last 12 hours. Patched versions, such as 8.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, and 10.4.2, have been released to address this issue. Users are urged to update their systems immediately to prevent potential exploitation.
This vulnerability highlights the importance of robust validation mechanisms in software development, especially in platforms handling sensitive data. The rapid response from Mattermost in releasing patches demonstrates their commitment to security, but users must act swiftly to apply these updates. Organizations relying on Mattermost should also review their security practices and ensure that all systems are up to date to mitigate risks associated with such vulnerabilities.
The discovery of this vulnerability underscores the need for continuous monitoring and timely updates in software ecosystems. As collaboration platforms like Mattermost become integral to business operations, ensuring their security is paramount to protecting sensitive information and maintaining user trust. This incident serves as a reminder for developers and organizations to prioritize security in their software lifecycle and stay vigilant against emerging threats.
References:
Reported By: https://github.com/advisories/GHSA-5fwx-p6xh-vjrh
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