Bug 1944543 (CVE-2021-3127) - CVE-2021-3127 nats-server: mishandling Import Token bindings may lead to Incorrect Access Control
Summary: CVE-2021-3127 nats-server: mishandling Import Token bindings may lead to Inco...
Alias: CVE-2021-3127
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1944544
Blocks: 1944545
TreeView+ depends on / blocked
Reported: 2021-03-30 07:12 UTC by Marian Rehak
Modified: 2021-04-27 04:45 UTC (History)
3 users (show)

Fixed In Version: nats-server 2.2.0
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2021-04-01 11:35:09 UTC

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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:


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):


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