Vulnerability CVE-2021-43798
Published: 2021-12-07

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Grafana 8.3.0 Directory Traversal / Arbitrary File Read
s1gh
09.12.2021

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Grafana -> Grafana 

 References:
https://github.com/grafana/grafana/security/advisories/GHSA-8pjx-jj86-j47p
https://github.com/grafana/grafana/commit/c798c0e958d15d9cc7f27c72113d572fa58545ce
http://packetstormsecurity.com/files/165198/Grafana-Arbitrary-File-Reading.html
https://grafana.com/blog/2021/12/08/an-update-on-0day-cve-2021-43798-grafana-directory-traversal/
http://packetstormsecurity.com/files/165221/Grafana-8.3.0-Directory-Traversal-Arbitrary-File-Read.html
http://www.openwall.com/lists/oss-security/2021/12/09/2
http://www.openwall.com/lists/oss-security/2021/12/10/4
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