Bug 2176820 (CVE-2023-27486)

Summary:	CVE-2023-27486 xcat: Insufficient authorization validation between zones when xCAT zones are enabled
Product:	[Other] Security Response	Reporter:	msiddiqu
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	xcat 2.16.5	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-09 15:54:17 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:	2176821
Bug Blocks:	2176822

Description msiddiqu 2023-03-09 12:06:22 UTC

xCAT is a toolkit for deployment and administration of computer clusters. In versions prior to 2.16.5 if zones are configured as a mechanism to secure clusters in XCAT, it is possible for a local root user from one node to obtain credentials to SSH to any node in any zone, except the management node of the default zone. XCAT zones are not enabled by default. Only users that use the optional zone feature are impacted. All versions of xCAT prior to xCAT 2.16.5 are vulnerable. This problem has been fixed in xCAT 2.16.5. Users making use of zones should upgrade to 2.16.5. Users unable to upgrade may mitigate the issue by disabling zones or patching the management node with the fix contained in commit `85149c37f49`.

References: 
https://github.com/xcat2/xcat-core/security/advisories/GHSA-hpxg-7428-6jvv
https://github.com/xcat2/xcat-core/pull/7247/commits/85149c37f49dbca7bd85f1f586960315604fc024
https://github.com/xcat2/xcat-core/pull/7247
https://github.com/xcat2/xcat-core/issues/7246

Comment 1 msiddiqu 2023-03-09 12:06:40 UTC

Created xcat tracking bugs for this issue:

Affects: fedora-all [bug 2176821]

Comment 2 Product Security DevOps Team 2023-03-09 15:54:16 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.