CVE-2021-41090
Grafana Agent Exposed Secrets
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 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.
INFO
Published Date :
Dec. 8, 2021, 5:15 p.m.
Last Modified :
March 31, 2022, 4:30 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-41090.
| URL | Resource |
|---|---|
| https://github.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21 | Patch Third Party Advisory |
| https://github.com/grafana/agent/pull/1152 | Patch Third Party Advisory |
| https://github.com/grafana/agent/releases/tag/v0.20.1 | Release Notes Third Party Advisory |
| https://github.com/grafana/agent/releases/tag/v0.21.2 | Release Notes Third Party Advisory |
| https://github.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211229-0004/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41090 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41090 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 31, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20211229-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20211229-0004/ Third Party Advisory Added CWE NIST CWE-312 -
CVE Modified by [email protected]
Dec. 29, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20211229-0004/ [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 13, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21 No Types Assigned https://github.com/grafana/agent/commit/af7fb01e31fe2d389e5f1c36b399ddc46b412b21 Patch, Third Party Advisory Changed Reference Type https://github.com/grafana/agent/pull/1152 No Types Assigned https://github.com/grafana/agent/pull/1152 Patch, Third Party Advisory Changed Reference Type https://github.com/grafana/agent/releases/tag/v0.20.1 No Types Assigned https://github.com/grafana/agent/releases/tag/v0.20.1 Release Notes, Third Party Advisory Changed Reference Type https://github.com/grafana/agent/releases/tag/v0.21.2 No Types Assigned https://github.com/grafana/agent/releases/tag/v0.21.2 Release Notes, Third Party Advisory Changed Reference Type https://github.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh No Types Assigned https://github.com/grafana/agent/security/advisories/GHSA-9c4x-5hgq-q3wh Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:* versions from (including) 0.14.0 up to (excluding) 0.20.1 *cpe:2.3:a:grafana:agent:*:*:*:*:*:*:*:* versions from (including) 0.21.0 up to (excluding) 0.21.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41090 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-41090
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.28 }} 0.03%
score
0.69189
percentile