CVE-2023-5195 : What You Need to Know

This CVE-2023-5195 was assigned by Mattermost and was published on September 29, 2023. The vulnerability affects Mattermost versions up to 8.1.0, allowing a team member to soft delete teams they are not part of due to improper permission validation.

Understanding CVE-2023-5195

This CVE highlights a security issue in Mattermost that could potentially compromise the integrity of teams within the application.

What is CVE-2023-5195?

CVE-2023-5195 involves a flaw in Mattermost's validation of permissions when soft deleting a team, enabling unauthorized team members to delete teams they are not part of.

The Impact of CVE-2023-5195

The impact of this vulnerability is considered medium with a CVSS base score of 6.5. Although confidentiality and integrity impacts are none, the availability impact is high, making it a concern for affected users.

Technical Details of CVE-2023-5195

This section outlines specific technical details related to the CVE.

Vulnerability Description

The vulnerability arises from Mattermost's failure to adequately validate permissions while executing the soft delete operation for a team, granting unauthorized members the ability to delete other teams.

Affected Systems and Versions

Versions up to 8.1.0 of Mattermost are impacted by this vulnerability, while versions 7.8.10, 8.0.2, and 8.1.1 have been identified as unaffected by the issue.

Exploitation Mechanism

The exploitation of CVE-2023-5195 involves exploiting the improper permission validation in the soft delete functionality within Mattermost, allowing unauthorized members to delete teams they are not part of.

Mitigation and Prevention

To address and prevent the risks associated with CVE-2023-5195, it is essential to take immediate action and implement long-term security practices.

Immediate Steps to Take

Users are advised to update their Mattermost server to versions 7.8.10, 8.0.2, 8.1.1, or higher as a crucial step in mitigating the vulnerability and reducing the associated risks.

Long-Term Security Practices

In the long term, it is recommended to regularly update and patch software, conduct security assessments, and educate users on secure practices to enhance overall system security posture. Regular monitoring and audits can also help in identifying and addressing vulnerabilities promptly.