CVE-2021-37861 Explained : Impact and Mitigation

This CVE-2021-37861 article provides an in-depth overview of the vulnerability found in Mattermost version 6.0.2 and earlier, impacting password sanitization in audit logs.

Understanding CVE-2021-37861

This section delves into the specifics of CVE-2021-37861, including the vulnerability description, impact, affected systems and versions, exploitation mechanism, as well as mitigation and prevention techniques.

What is CVE-2021-37861?

The vulnerability in Mattermost version 6.0.2 and earlier leads to inadequate sanitization of a user's password in audit logs when a user creation process fails, posing a risk to the confidentiality of user data.

The Impact of CVE-2021-37861

With a CVSS base score of 5.8 and a Medium severity rating, the impact of CVE-2021-37861 lies in the exposure of sensitive user password information due to insufficient sanitization, potentially compromising user confidentiality.

Technical Details of CVE-2021-37861

This section provides detailed technical insights into the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

Mattermost version 6.0.2 and earlier fail to adequately sanitize a user's password in audit logs, creating a security loophole when user creation fails, potentially exposing sensitive information.

Affected Systems and Versions

The vulnerability affects Mattermost version 6.0.2 and earlier, with custom versions falling under the specified range, making them susceptible to the password exposure risk.

Exploitation Mechanism

Malicious actors can potentially exploit this vulnerability by triggering a user creation failure scenario in Mattermost, leading to the exposure of user passwords in the audit logs.

Mitigation and Prevention

Explore the essential steps to mitigate and prevent the risks associated with CVE-2021-37861, ensuring the security of user data and maintaining system integrity.

Immediate Steps to Take

Immediate actions include updating Mattermost to a patched version, monitoring audit logs for potential password exposure, and informing users about potential risks.

Long-Term Security Practices

Implement robust password handling practices, conduct regular security audits, and enhance user education on secure password management to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates from Mattermost, apply patches promptly, and prioritize cybersecurity measures to safeguard against password exposure threats.