Medium severity · published May 13, 2021
CVE-2021-22137
In Elasticsearch versions before 7.11.2 and 6.8.15 a document disclosure flaw was found when Document or Field Level Security is used
5.3
CVSS
1.2%
EPSS
No
On KEV
Description
In Elasticsearch versions before 7.11.2 and 6.8.15 a document disclosure flaw was found when Document or Field Level Security is used. Search queries do not properly preserve security permissions when executing certain cross-cluster search queries. This could result in the search disclosing the existence of documents the attacker should not be able to view. This could result in an attacker gaining additional insight into potentially sensitive indices.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Elasticsearch · Elastic
before 6.8.15; 7.11.0 before 7.11.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22137
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22137
Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0003/
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