CVE-2023-5123 Improper Path Sanitization in JSON Datasource Plugin
Attackers can traverse paths to access unauthorized data or escalate privileges via malicious dashboard queries in the Grafana JSON datasource plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-5123?
CVE-2023-5123 is a high-severity path traversal vulnerability in grafana-json-datasource, published on 14 Feb 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The JSON datasource plugin ( https://grafana.com/grafana/plugins/marcusolsson-json-datasource/ ) is a Grafana Labs maintained plugin for Grafana that allows for retrieving and processing JSON data from a remote endpoint (including a specific sub-path) configured by an administrator. Due to inadequate sanitization of the dashboard-supplied path parameter, it was possible to include path traversal characters (../) in the path parameter and send requests to paths on the configured endpoint outside the configured sub-path.
This means that if the datasource was configured by an administrator to point at some sub-path of a domain (e.g. https://example.com/api/some_safe_api/ ), it was possible for an editor to create a dashboard referencing the datasource which issues queries containing path traversal characters, which would in turn cause the datasource to instead query arbitrary subpaths on the configured domain (e.g. https://example.com/api/admin_api/) .
In the rare case that this plugin is configured by an administrator to point back at the Grafana instance itself, this vulnerability becomes considerably more severe, as an administrator browsing a maliciously configured panel could be compelled to make requests to Grafana administrative API endpoints with their credentials, resulting in the potential for privilege escalation, hence the high score for this vulnerability.
Weakness: CWE-22
Which versions are affected by CVE-2023-5123?
It affects 1 product.
Products include Grafana Json Api Data Source.
How do I fix CVE-2023-5123?
No fix has been published for CVE-2023-5123 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-5123 being exploited?
There is no known exploitation of CVE-2023-5123 in the wild and no public exploit code.
Sources
Also known as GHSA-xg2r-m5g9-vr82.