CVE-2020-7020

elasticsearch: not properly preserving security permissions when executing complex queries may lead to information disclosure

Severity Score

3.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Elasticsearch versions before 6.8.13 and 7.9.2 contain a document disclosure flaw when Document or Field Level Security is used. Search queries do not properly preserve security permissions when executing certain complex 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.

Elasticsearch versiones anteriores a 6.8.13 y 7.9.2, contienen un fallo de divulgación de documentos cuando es usado Document o Field Level Security. Las consultas de búsqueda no conservan apropiadamente los permisos de seguridad al ejecutar determinadas consultas complejas. Esto podría resultar en que la búsqueda divulgue la existencia de documentos que el atacante no debería poder visualizar. Esto podría resultar en que un atacante pueda obtener información adicional sobre índices potencialmente confidenciales

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-14 CVE Reserved
2020-10-22 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-269: Improper Privilege Management
CWE-270: Privilege Context Switching Error

CAPEC

References (4)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20201123-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.elastic.co/t/elastic-stack-7-9-3-and-6-8-13-security-update/253033	2022-06-03
https://access.redhat.com/security/cve/CVE-2020-7020	2022-07-07
https://bugzilla.redhat.com/show_bug.cgi?id=1893125	2022-07-07

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"				< 6.8.13 Search vendor "Elastic" for product "Elasticsearch" and version " < 6.8.13"		-		Affected
Elastic Search vendor "Elastic"		Elasticsearch Search vendor "Elastic" for product "Elasticsearch"				>= 7.0.0 < 7.9.2 Search vendor "Elastic" for product "Elasticsearch" and version " >= 7.0.0 < 7.9.2"		-		Affected