Bug 1934745 (CVE-2021-22134)

Summary:	CVE-2021-22134 elasticsearch: requests do not properly apply security permissions when executing a query against a recently updated document
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aileenc, akoufoud, alazarot, almorale, anstephe, aos-bugs, apevec, apevec, bdettelb, bibryam, bmontgom, chazlett, dbecker, dbruno, drieden, eparis, etirelli, ganandan, ggaughan, gmalinko, gvarsami, hbraun, ibek, janstey, jburrell, jcantril, jcoleman, jjoyce, jochrist, jokerman, jschluet, jstastny, jwon, kconner, krathod, kverlaen, ldimaggi, lhh, lpeer, mburns, mmagr, mnovotny, nstielau, nwallace, pantinor, piotr1212, pjindal, rrajasek, rsynek, rwagner, sclewis, sdaley, sd-operator-metering, slinaber, sponnaga, steve.traylen, tcunning, tflannag, tkirby, tomckay
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	elasticsearch 7.11.0	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in elasticsearch. Get requests do not properly apply security permissions when executing a query against a recently updated document. This affects documents that have been updated and not yet refreshed in the index. This could result in the search disclosing the existence of documents and fields the attacker should not be able to view. A mitigating factor to this flaw is an attacker must know the document ID to run the get request.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-03-10 15:05:52 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1934747, 1934748, 1934749
Bug Blocks:	1934751

Description Guilherme de Almeida Suckevicz 2021-03-03 18:56:53 UTC

A document disclosure flaw was found in Elasticsearch when Document or Field Level Security is used. Get requests do not properly apply security permissions when executing a query against a recently updated document. This affects documents that have been updated and not yet refreshed in the index. This could result in the search disclosing the existence of documents and fields the attacker should not be able to view. A mitigating factor to this flaw is an attacker must know the document ID to run the get request.

Reference:
https://discuss.elastic.co/t/elastic-stack-7-11-0-security-update/265835

Comment 1 Guilherme de Almeida Suckevicz 2021-03-03 18:57:27 UTC

Created python-elasticsearch tracking bugs for this issue:

Affects: epel-all [bug 1934748]
Affects: fedora-all [bug 1934749]
Affects: openstack-rdo [bug 1934747]

Comment 2 Mark Cooper 2021-03-04 03:09:31 UTC

External References:

https://discuss.elastic.co/t/elastic-stack-7-11-0-security-update/265835

Comment 3 Mark Cooper 2021-03-04 03:16:14 UTC

OpenShift Container Platform (OCP) packages elasticsearch in its openshift-logging/elasticsearch[5|6] containers. However it is v6.8.x. 

Document and Field Level Security is only in the enterprise version of Elasticsearch [1] which is not included in OpenShift.

Given this, OpenShift has been marked not affected.


[1] https://www.elastic.co/subscriptions

Comment 4 Mark Cooper 2021-03-04 03:50:20 UTC

Statement:

In Elasticsearch, Document and Field Level Security is an enterprise only feature [1]. Hence the open source version is unaffected by this vulnerability.

[1] https://www.elastic.co/subscriptions

Comment 7 Product Security DevOps Team 2021-03-10 15:05:52 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-22134