CVE-2021-22137

elasticsearch: Document disclosure flaw when Document or Field Level Security is used

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En Elasticsearch versiones anteriores a 7.11.2 y la 6.8.15, se encontró un fallo en la divulgación del documento cuando Document o Field Level Security es usado. Las consultas de Búsqueda no conservan apropiadamente los permisos de seguridad al ejecutar determinadas consultas de búsqueda cross-cluster. Esto podría resultar en que la búsqueda revele la existencia de documentos que el atacante no sería capaz de visualizar. Esto podría resultar en que un atacante obtenga información adicional sobre índices potencialmente confiables

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-04 CVE Reserved
2021-05-13 CVE Published
2024-01-27 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-281: Improper Preservation of Permissions

CAPEC

References (4)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20210625-0003	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125	2022-11-04
https://access.redhat.com/security/cve/CVE-2021-22137	2022-09-09
https://bugzilla.redhat.com/show_bug.cgi?id=1943189	2022-09-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Elastic Search vendor "Elastic"		Elasticsearch Search vendor "Elastic" for product "Elasticsearch"				< 6.8.15 Search vendor "Elastic" for product "Elasticsearch" and version " < 6.8.15"		-		Affected
Elastic Search vendor "Elastic"		Elasticsearch Search vendor "Elastic" for product "Elasticsearch"				>= 7.11.0 < 7.11.2 Search vendor "Elastic" for product "Elasticsearch" and version " >= 7.11.0 < 7.11.2"		-		Affected