Bug 2036252 (CVE-2021-43858)

Summary:	CVE-2021-43858 minio: user privilege escalation in AddUser() admin API
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	caswilli, code, crarobin, go-sig, gparvin, jburrell, jmadigan, jramanat, kaycoth, ngough, njean, pahickey, pamccart, stcannon, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RELEASE.2021-12-27T07-23-18Z	Doc Type:	If docs needed, set a value
Doc Text:	MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version `RELEASE.2021-12-27T07-23-18Z` changes the accepted request body type and removes the ability to apply policy changes through this API.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-09 04:49:39 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:	2036253, 2038206, 2038207, 2038208, 2038209, 2038210, 2038211, 2038212, 2038213, 2038214, 2038215, 2038216, 2038217, 2038218, 2038219, 2038220, 2038221, 2038222, 2038223, 2038224, 2038225, 2038226, 2038227, 2038228, 2038229, 2038230, 2038231, 2038232, 2038233, 2038234, 2038235, 2038236, 2040439
Bug Blocks:	2036258

Description Guilherme de Almeida Suckevicz 2021-12-30 17:55:58 UTC

MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version `RELEASE.2021-12-27T07-23-18Z` changes the accepted request body type and removes the ability to apply policy changes through this API. There is a workaround for this vulnerability: Changing passwords can be disabled by adding an explicit `Deny` rule to disable the API for users.

Reference:
https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx

Comment 1 Guilherme de Almeida Suckevicz 2021-12-30 17:56:17 UTC

Created golang-github-minio tracking bugs for this issue:

Affects: fedora-all [bug 2036253]

Comment 3 errata-xmlrpc 2022-03-03 06:58:14 UTC

This issue has been addressed in the following products:

  Red Hat Advanced Cluster Management for Kubernetes 2.4 for RHEL 8

Via RHSA-2022:0735 https://access.redhat.com/errata/RHSA-2022:0735

Comment 4 errata-xmlrpc 2022-06-09 02:06:13 UTC

This issue has been addressed in the following products:

  Red Hat Advanced Cluster Management for Kubernetes 2.5 for RHEL 8

Via RHSA-2022:4956 https://access.redhat.com/errata/RHSA-2022:4956

Comment 5 Product Security DevOps Team 2022-06-09 04:49:36 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-2021-43858