Path traversal in Grafana

1) Path traversal

EUVDB-ID: #VU64404

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43815

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing .csv files. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Grafana: 1.0 - 8.3.1

External links

http://github.com/grafana/grafana/security/advisories/GHSA-7533-c8qv-jm9m
http://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d
http://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/
http://github.com/grafana/grafana/commit/d6ec6f8ad28f0212e584406730f939105ff6c6d3
http://bugzilla.redhat.com/show_bug.cgi?id=2032574

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.