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githubGitHub Advisory DatabaseGHSA-4C7Q-M7HC-PC92
HistoryJun 12, 2024 - 3:31 p.m.

Elasticsearch Remote Cluster Search Cross Cluster API Key insufficient restrictions

2024-06-1215:31:44
CWE-200
GitHub Advisory Database
github.com
18
elasticsearch
remote cluster
cross cluster
security model
api key
replication
index
search restrictions
beta feature

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

AI Score

7

Confidence

High

EPSS

0

Percentile

9.0%

It was identified that if a cross-cluster API key https://www.elastic.co/guide/en/elasticsearch/reference/8.14/security-api-create-cross-cluster-api-key.html#security-api-create-cross-cluster-api-key-request-body restricts search for a given index using the query or the field_security parameter, and the same cross-cluster API key also grants replication for the same index, the search restrictions are not enforced during cross cluster search operations and search results may include documents and terms that should not be returned.

This issue only affects the API key based security model for remote clusters https://www.elastic.co/guide/en/elasticsearch/reference/8.14/remote-clusters.html#remote-clusters-security-models that was previously a beta feature and is released as GA with 8.14.0

Affected configurations

Vulners
Node
org.elasticsearchelasticsearchRange8.10.08.14.0
VendorProductVersionCPE
org.elasticsearchelasticsearch*cpe:2.3:a:org.elasticsearch:elasticsearch:*:*:*:*:*:*:*:*

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

AI Score

7

Confidence

High

EPSS

0

Percentile

9.0%