CVE-2021-37938 Path traversal in Kibana
A path traversal vulnerability in Kibana on Windows allows attackers to read internal .pbf files from the host system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-37938?
CVE-2021-37938 is a medium-severity path traversal vulnerability in Elastic Kibana, published on 18 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
It was discovered that on Windows operating systems specifically, Kibana was not validating a user supplied path, which would load .pbf files. Because of this, a malicious user could arbitrarily traverse the Kibana host to load internal files ending in the .pbf extension. Thanks to Dominic Couture for finding this vulnerability.
Which versions are affected by CVE-2021-37938?
It affects 1 product.
Products include Elastic Kibana.
How do I fix CVE-2021-37938?
No fix has been published for CVE-2021-37938 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-2021-37938 being exploited?
There is no known exploitation of CVE-2021-37938 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as GHSA-pfm6-x9q4-rphr.