Privilege escalation in Elastic Kibana
CVE-2021-37938
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.
Vulnerability class: Privilege Escalation
EPSS: 0.007 (49.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Elastic Kibana — versions All versions from 7.9.0 through 7.15.1
Weakness classification (CWE)
References
- security@elastic.co (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-37938?
- CVE-2021-37938 is a medium-severity vulnerability in Elastic Kibana, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2021-11-18.
- How severe is CVE-2021-37938?
- Medium severity. CVSS v3 base score is 4.3 out of 10.