#VU64400 Path traversal in Grafana - CVE-2022-32275

Vulnerability identifier: #VU64400

Vulnerability risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-32275

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Grafana
Web applications / Other software

Vendor: Grafana Labs

Description

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

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

Exploitation example:
/dashboard/snapshot/%7B%7Bconstructor.constructor'/.. /.. /.. /.. /.. /.. /.. /.. /etc/passwd

Mitigation
Install update from vendor's website.

Vulnerable software versions

Grafana: 8.4.3

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External links
https://github.com/BrotherOfJhonny/grafana/blob/main/README.md
https://github.com/grafana/grafana/issues/50336

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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. However, proof of concept for this vulnerability is available.