Grafana up to 7.5.11/8.3.1 CSV File path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Grafana up to 7.5.11/8.3.1. Affected by this issue is some unknown functionality of the component CSV File Handler. Performing a manipulation results in path traversal. This vulnerability is reported as CVE-2021-43815. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Grafana up to 7.5.11/8.3.1. This affects an unknown code of the component CSV File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality.

The weakness was disclosed 12/11/2021 as GHSA-7533-c8qv-jm9m. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-43815 since 11/16/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 261462 (Linux Distros Unpatched Vulnerability : CVE-2021-43815), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.5.12 or 8.3.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d6ec6f8ad28f0212e584406730f939105ff6c6d3 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (261462). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Grafana

Version

• 7.5.0
• 7.5.1
• 7.5.2
• 7.5.3
• 7.5.4
• 7.5.5
• 7.5.6
• 7.5.7
• 7.5.8
• 7.5.9
• 7.5.10
• 7.5.11
• 8.3.0
• 8.3.1

License

• open-source

Website

• Product: https://github.com/grafana/grafana/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion