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Bug 1934839 (CVE-2021-22877) - CVE-2021-22877 nextcloud: Stored credentials accessible by other users
Summary: CVE-2021-22877 nextcloud: Stored credentials accessible by other users
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-22877
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1934840
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-03 21:17 UTC by Pedro Sampaio
Modified: 2021-03-04 01:02 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-03-04 01:02:06 UTC
Embargoed:


Attachments (Terms of Use)

Description Pedro Sampaio 2021-03-03 21:17:27 UTC
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.

https://github.com/nextcloud/server/issues/24600
https://github.com/nextcloud/server/pull/25224
https://hackerone.com/reports/1061591
https://nextcloud.com/security/advisory/?id=NC-SA-2021-004

Comment 1 Pedro Sampaio 2021-03-03 21:17:48 UTC
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1934840]

Comment 2 Product Security DevOps Team 2021-03-04 01:02:06 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.


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