Bug 1944543 (CVE-2021-3127)

Summary:	CVE-2021-3127 nats-server: mishandling Import Token bindings may lead to Incorrect Access Control
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	eclipseo, go-sig, rhel8-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nats-server 2.2.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-04-01 11:35:09 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:	1944544
Bug Blocks:	1944545

Description Marian Rehak 2021-03-30 07:12:07 UTC

Any account can take an Import token used by any other account and re-use it for themselves because the binding to the importing account is not rejected, and use it to import *any* Subject from the Exporting account, not just the Subject referenced in the Import Token.

Upstream Advisory:

https://advisories.nats.io/CVE/CVE-2021-3127.txt

Comment 1 Marian Rehak 2021-03-30 07:13:03 UTC

Created nats-server tracking bugs for this issue:

Affects: fedora-all [bug 1944544]

Comment 2 Product Security DevOps Team 2021-04-01 11:35:09 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-2021-3127