Information disclosure in Elastic Elasticsearch
CVE-2021-22135
Elasticsearch versions before 7.11.2 and 6.8.15 contain a document disclosure flaw was found in the Elasticsearch suggester and profile API when Document and Field Level Security are enabled. The suggester and profile API are normally disabled for an index when document level security is enabled on the index. Certain queries are able to enable the profiler and suggester which could lead to disclosing the existence of documents and fields the attacker should not be able to view.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (65.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Elastic Elasticsearch — versions before 7.11.2 and 6.8.15
Weakness classification (CWE)
Public proof-of-concept exploits
References
- discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 (Vendor Advisory)
- security.netapp.com/advisory/ntap-20210625-0003/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22135?
- CVE-2021-22135 is a medium-severity vulnerability in Elastic Elasticsearch, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-05-13.
- How severe is CVE-2021-22135?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-22135 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.