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CVE-2021-41090

6.5 · MEDIUM

Grafana Agent is a telemetry collector for sending metrics, logs, and trace data to the opinionated Grafana observability stack.

Published Dec 8, 2021CWE-200EPSS 0.76%

Overview

CVE-2021-41090 is a medium-severity vulnerability. It was published on December 8, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Grafana Agent is a telemetry collector for sending metrics, logs, and trace data to the opinionated Grafana observability stack. Prior to versions 0.20.1 and 0.21.2, inline secrets defined within a metrics instance config are exposed in plaintext over two endpoints: metrics instance configs defined in the base YAML file are exposed at `/-/config` and metrics instance configs defined for the scraping service are exposed at `/agent/api/v1/configs/:key`. Inline secrets will be exposed to anyone being able to reach these endpoints. If HTTPS with client authentication is not configured, these endpoints are accessible to unauthenticated users. Secrets found in these sections are used for delivering metrics to a Prometheus Remote Write system, authenticating against a system for discovering Prometheus targets, and authenticating against a system for collecting metrics. This does not apply for non-inlined secrets, such as `*_file` based secrets. This issue is patched in Grafana Agent versions

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21GitHubgithub.com/grafana/agent/pull/1152GitHubgithub.com/grafana/agent/releases/tag/v0.20.1GitHubgithub.com/grafana/agent/releases/tag/v0.21.2GitHubgithub.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3whRefsecurity.netapp.com/advisory/ntap-20211229-0004/GitHubgithub.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21GitHubgithub.com/grafana/agent/pull/1152GitHubgithub.com/grafana/agent/releases/tag/v0.20.1GitHubgithub.com/grafana/agent/releases/tag/v0.21.2

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41090?

CVE-2021-41090 is a medium-severity vulnerability. It was published on December 8, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-41090?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-41090?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-41090?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41090 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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