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CVE-2022-24812— FGAC API Key privilege escalation in Grafana

Quick assessment

Affected
grafana grafana
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grafana是Grafana实验室的一套提供可视化监控界面的开源监控工具。该工具主要用于监控和分析Graphite、InfluxDB和Prometheus等。 Grafana Enterprise 8.1.0-beta1 至 8.4.5 版本存在安全漏洞，该漏洞源于启用了细粒度访问控制测试版功能，并且至少有两个具有不同角色的 API 密钥。客户端使用 Grafana API 密钥发出请求以获取先前请求的权限，这可能导致权限升级，具体取决于上一个请求的权限。

CVSS 8.0 · High EPSS 2.32% · P82

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2022-24812

Vulnerability Information
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Vulnerability Title
FGAC API Key privilege escalation in Grafana
Source: CVE Program / CVE List V5
Vulnerability Description
Grafana is an open-source platform for monitoring and observability. When fine-grained access control is enabled and a client uses Grafana API Key to make requests, the permissions for that API Key are cached for 30 seconds for the given organization. Because of the way the cache ID is constructed, the consequent requests with any API Key evaluate to the same permissions as the previous requests. This can lead to an escalation of privileges, when for example a first request is made with Admin permissions, and the second request with different API Key is made with Viewer permissions, the second request will get the cached permissions from the previous Admin, essentially accessing higher privilege than it should. The vulnerability is only impacting Grafana Enterprise when the fine-grained access control beta feature is enabled and there are more than one API Keys in one organization with different roles assigned. All installations after Grafana Enterprise v8.1.0-beta1 should be upgraded as soon as possible. As an alternative, disable fine-grained access control will mitigate the vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Grafana 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grafana是Grafana实验室的一套提供可视化监控界面的开源监控工具。该工具主要用于监控和分析Graphite、InfluxDB和Prometheus等。 Grafana Enterprise 8.1.0-beta1 至 8.4.5 版本存在安全漏洞，该漏洞源于启用了细粒度访问控制测试版功能，并且至少有两个具有不同角色的 API 密钥。客户端使用 Grafana API 密钥发出请求以获取先前请求的权限，这可能导致权限升级，具体取决于上一个请求的权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
grafana grafana >= 8.1.0-beta1, < 8.4.6 -

II. Public POCs for CVE-2022-24812

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III. Intelligence Information for CVE-2022-24812

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Vendor Advisories for CVE-2022-24812 (2)

Security Blog Posts for CVE-2022-24812 (1)

Other References for CVE-2022-24812 (1)

IV. Related Vulnerabilities

Same product: grafana
Same vendor: grafana
Same weakness: CWE-269

V. Comments for CVE-2022-24812

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