Vulnerability identifier: #VU64273

Vulnerability 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-2021-43813

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Grafana
Web applications / Other software

Vendor: Grafana Labs

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker 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: 8.2.0 - 8.2.7, 8.1.0 - 8.1.8, 8.3.0 - 8.3.1, 8.0.0 - 8.0.7, 7.5.0 - 7.5.11, 7.3.0 - 7.3.10, 7.4.0 - 7.4.5, 7.2.0 - 7.2.3, 7.1.0 - 7.1.5, 7.0.0 - 7.0.6

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External links
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/security/advisories/GHSA-c3q8-26ph-9g2q
http://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/
http://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/
http://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0f
http://www.openwall.com/lists/oss-security/2021/12/10/4
http://security.netapp.com/advisory/ntap-20220107-0006/
http://bugzilla.redhat.com/show_bug.cgi?id=2031228

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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.