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:
Doc Type: If docs needed, set a value
Doc Text:
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.
Note You need to log in before you can comment on or make changes to this bug.