CVE-2021-41090

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Summary

CVECVE-2021-41090
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-08 17:15:00 UTC
Updated2022-03-31 16:30:00 UTC
DescriptionGrafana 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 0.20.1 and 0.21.2. A few workarounds are available. Users who cannot upgrade should use non-inline secrets where possible. Users may also desire to restrict API access to Grafana Agent with some combination of restricting the network interfaces Grafana Agent listens on through `http_listen_address` in the `server` block, configuring Grafana Agent to use HTTPS with client authentication, and/or using firewall rules to restrict external access to Grafana Agent's API.

Risk And Classification

Problem Types: CWE-312

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Grafana Agent All All All All

References

ReferenceSourceLinkTags
announce patch releases by rfratto · Pull Request #1152 · grafana/agent · GitHub MISC github.com
Release v0.20.1 · grafana/agent · GitHub MISC github.com
announce patch releases for cve-2021-41090 (#1152) · grafana/agent@af7fb01 · GitHub MISC github.com
Inline secrets exposure · Advisory · grafana/agent · GitHub CONFIRM github.com
Release v0.21.2 · grafana/agent · GitHub MISC github.com
December 2021 Grafana Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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