CVE-2019-7611

elasticsearch: Improper permission issue when attaching a new name to an index

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A permission issue was found in Elasticsearch versions before 5.6.15 and 6.6.1 when Field Level Security and Document Level Security are disabled and the _aliases, _shrink, or _split endpoints are used . If the elasticsearch.yml file has xpack.security.dls_fls.enabled set to false, certain permission checks are skipped when users perform one of the actions mentioned above, to make existing data available under a new index/alias name. This could result in an attacker gaining additional permissions against a restricted index.

Se ha encontrado un problema de permiso en versiones anteriores a las 5.6.15 y 6.6.1 de Elasticsearch cuando se encuentran deshabilitados Field Level Security y Document Level Security, y se utilizan los endpoints _aliases, _shrink o _split. Si el archivo elasticsearch.yml tiene la opción xpack.security.dls_fls.enabled configurada en ‘‘false’’, se omiten ciertas comprobaciones de permiso cuando los usuarios ejecutan una de las acciones mencionadas anteriormente, para hacer que los datos existentes sean disponibles bajo un nuevo alias o nombre de índice. Esto podría resultar en que un atacante logre permisos adicionales en un índice restringido.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-07 CVE Reserved
2019-03-25 CVE Published
2023-03-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control
CWE-285: Improper Authorization

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.elastic.co/t/elastic-stack-6-6-1-and-5-6-15-security-update/169077	2020-10-19
https://www.elastic.co/community/security	2020-10-19
https://access.redhat.com/security/cve/CVE-2019-7611	2020-03-18
https://bugzilla.redhat.com/show_bug.cgi?id=1696034	2020-03-18

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"				< 5.6.15 Search vendor "Elastic" for product "Elasticsearch" and version " < 5.6.15"		-		Affected
Elastic Search vendor "Elastic"		Elasticsearch Search vendor "Elastic" for product "Elasticsearch"				>= 6.0.0 < 6.6.1 Search vendor "Elastic" for product "Elasticsearch" and version " >= 6.0.0 < 6.6.1"		-		Affected