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CVE-2021-43798

7.5 · HIGHActively Exploited

Grafana is an open-source platform for monitoring and observability.

Published Dec 7, 2021CWE-22EPSS 88.50%

Overview

CVE-2021-43798 is a high-severity vulnerability. It was published on December 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Grafana is an open-source platform for monitoring and observability. Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files. The vulnerable URL path is: `<grafana_host_url>/public/plugins//`, where is the plugin ID for any installed plugin. At no time has Grafana Cloud been vulnerable. Users are advised to upgrade to patched versions 8.0.7, 8.1.8, 8.2.7, or 8.3.1. The GitHub Security Advisory contains more information about vulnerable URL paths, mitigation, and the disclosure timeline.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/165198/Grafana-Arbitrary-File-Reading.htmlRefpacketstormsecurity.com/files/165221/Grafana-8.3.0-Directory-Traversal-Arbitrary-File-Read.htmlRefwww.openwall.com/lists/oss-security/2021/12/09/2Refwww.openwall.com/lists/oss-security/2021/12/10/4GitHubgithub.com/grafana/grafana/commit/c798c0e958d15d9cc7f27c72113d572fa58545ceGitHubgithub.com/grafana/grafana/security/advisories/GHSA-8pjx-jj86-j47pRefgrafana.com/blog/2021/12/08/an-update-on-0day-cve-2021-43798-grafana-directory-traversal/Refsecurity.netapp.com/advisory/ntap-20211229-0004/Refpacketstormsecurity.com/files/165198/Grafana-Arbitrary-File-Reading.htmlRefpacketstormsecurity.com/files/165221/Grafana-8.3.0-Directory-Traversal-Arbitrary-File-Read.html

How CyberStrike helps

Frequently asked questions

What is CVE-2021-43798?

CVE-2021-43798 is a high-severity vulnerability. It was published on December 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2021-43798?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-43798?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-43798?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-43798 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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