CVE-2021-43815— Grafana directory traversal for `.cvs` files
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I. Basic Information for CVE-2021-43815
Vulnerability Information
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Vulnerability Title
Grafana directory traversal for `.cvs` files
Source: NVD (National Vulnerability Database)
Vulnerability Description
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 has a directory traversal for arbitrary .csv files. It only affects instances that have the developer testing tool called TestData DB data source enabled and configured. The vulnerability is limited in scope, and only allows access to files with the extension .csv to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Versions 8.3.2 and 7.5.12 contain a patch for this issue. There is a workaround available for users who cannot upgrade. Running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Grafana 路径遍历漏洞
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 中存在路径遍历漏洞，该漏洞源于产品未对csv文件做有效处理。该漏洞只存在于配置了testdata db数据源的数据库中。攻击者可通过该漏洞进行目录遍历。以下产品及版本受到影响：Grafana 8.3.2 之前版本、Grafana 7.5.12 之前版本。
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
II. Public POCs for CVE-2021-43815
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- https://security.netapp.com/advisory/ntap-20220107-0006/x_refsource_CONFIRM
- https://github.com/grafana/grafana/releases/tag/v8.3.2x_refsource_MISC
- https://github.com/grafana/grafana/security/advisories/GHSA-7533-c8qv-jm9mx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-43815
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