QID 730253

Date Published: 2021-11-16

QID 730253: Grafana Enterprise Cross-Site Scripting (XSS) Vulnerability

Grafana is an open-source, general purpose dashboard and graph composer, which runs as a web application.

Affected By Below Vulnerabilies:
CVE-2021-41174: In affected versions if an attacker is able to convince a victim to visit a URL referencing a vulnerable page, arbitrary JavaScript content may be executed within the context of the victim's browser.

Affected Versions:
Grafana Version 8.0.0-beta1 to 8.2.2

QID Detection Logic (Unauthenticated):
This QID checks for vulnerable version of Grafana Enterprise from the server response

Successful exploitation could allows an unauthenticated remote attacker to trigger a Cross-Site Scripting attack.

  • CVSS V3 rated as High - 6.1 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Customers are advised to download Grafana Enterprise 8.2.3 to fix this vulnerability.
    Workaround:

    If for some reason you cannot upgrade, you can use a reverse proxy or similar to block access to block the literal string {{ in the path.
    Example of an Nginx rule to block the literal string {{:

    location ~ \{\{ {
    deny all;
    }
    Vendor References

    CVEs related to QID 730253

    CVE-2021-41174 |
    Software Advisories
    Advisory ID Software Component Link
    Grafana Release Note 8.2.3 URL Logo github.com/grafana/grafana/security/advisories/GHSA-3j9m-hcv9-rpj8
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