Bug 2142764 (CVE-2022-41882) - CVE-2022-41882 nextcloud-client: desktop client can be tricked into opening/executing local files when clicking a nc://open/ link
Summary: CVE-2022-41882 nextcloud-client: desktop client can be tricked into opening/e...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-41882
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: 2142766 2142765
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-11-15 08:25 UTC by Marian Rehak
Modified: 2022-12-04 15:33 UTC (History)
0 users

Fixed In Version: nextcloud-client 3.6.1
Clone Of:
Environment:
Last Closed: 2022-12-04 15:33:27 UTC
Embargoed:


Attachments (Terms of Use)

Description Marian Rehak 2022-11-15 08:25:35 UTC
In version 3.6.0, if a user received a malicious file share and has it synced locally or the virtual filesystem enabled and clicked a nc://open/ link it will open the default editor for the file type of the shared file, which on Windows can also sometimes mean that a file depending on the type, e.g. "vbs", is being executed. It is recommended that the Nextcloud Desktop client is upgraded to version 3.6.1.

Reference:

https://github.com/nextcloud/server/pull/34559
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3w86-rm38-8w63
https://github.com/nextcloud/desktop/releases/tag/v3.6.1
https://github.com/nextcloud/desktop/pull/5039

Comment 1 Marian Rehak 2022-11-15 08:25:55 UTC
Created nextcloud-client tracking bugs for this issue:

Affects: epel-8 [bug 2142766]
Affects: fedora-all [bug 2142765]

Comment 2 Product Security DevOps Team 2022-12-04 15:33:25 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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