CVE-2021-27358 : Security Advisory and Response

Grafana versions 6.7.3 through 7.4.1 are affected by a vulnerability in the snapshot feature that could be exploited by unauthenticated remote attackers to trigger a Denial of Service attack using a remote API call.

Understanding CVE-2021-27358

This section will provide insight into the nature and impact of the CVE-2021-27358 vulnerability.

What is CVE-2021-27358?

The vulnerability in Grafana versions 6.7.3 through 7.4.1 allows unauthenticated remote attackers to exploit the snapshot feature and cause a Denial of Service through a remote API call under specific configurations.

The Impact of CVE-2021-27358

The impact of this vulnerability is significant as it exposes affected Grafana instances to the risk of a Denial of Service attack by remote threat actors.

Technical Details of CVE-2021-27358

In this section, we will delve into the technical aspects of the CVE-2021-27358 vulnerability.

Vulnerability Description

The vulnerability lies within the snapshot feature of Grafana versions 6.7.3 through 7.4.1, enabling unauthenticated remote attackers to exploit it for triggering a Denial of Service via a remote API call.

Affected Systems and Versions

Grafana versions 6.7.3 through 7.4.1 are confirmed to be affected by this vulnerability, putting users of these versions at risk.

Exploitation Mechanism

Remote threat actors can exploit the vulnerability by leveraging a commonly used configuration to engage in a remote API call, leading to a Denial of Service condition.

Mitigation and Prevention

To address the CVE-2021-27358 vulnerability effectively, it is crucial to implement appropriate mitigation strategies and security measures.

Immediate Steps to Take

Users are advised to update Grafana to versions beyond 7.4.1 to mitigate the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implementing robust authentication mechanisms, network segregation, and monitoring can enhance the security posture of systems running Grafana.

Patching and Updates

Regularly applying security patches and staying informed about software updates are essential practices to prevent vulnerabilities like CVE-2021-27358 from being exploited.