CVE-2021-41090

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 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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:*
cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:*

History

31 Mar 2022, 16:30

Type Values Removed Values Added
CWE CWE-200 CWE-312
References (CONFIRM) https://security.netapp.com/advisory/ntap-20211229-0004/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20211229-0004/ - Third Party Advisory

29 Dec 2021, 21:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20211229-0004/ -

13 Dec 2021, 16:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 4.3
v3 : 7.5
References (MISC) https://github.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21 - (MISC) https://github.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21 - Patch, Third Party Advisory
References (MISC) https://github.com/grafana/agent/pull/1152 - (MISC) https://github.com/grafana/agent/pull/1152 - Patch, Third Party Advisory
References (CONFIRM) https://github.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh - (CONFIRM) https://github.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh - Third Party Advisory
References (MISC) https://github.com/grafana/agent/releases/tag/v0.20.1 - (MISC) https://github.com/grafana/agent/releases/tag/v0.20.1 - Release Notes, Third Party Advisory
References (MISC) https://github.com/grafana/agent/releases/tag/v0.21.2 - (MISC) https://github.com/grafana/agent/releases/tag/v0.21.2 - Release Notes, Third Party Advisory
CPE cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:*

08 Dec 2021, 17:26

Type Values Removed Values Added
New CVE

Information

Published : 2021-12-08 17:15

Updated : 2023-12-10 14:09


NVD link : CVE-2021-41090

Mitre link : CVE-2021-41090

CVE.ORG link : CVE-2021-41090


JSON object : View

Products Affected

grafana

  • agent
CWE
CWE-312

Cleartext Storage of Sensitive Information

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor