CVE-2022-41882

nextcloud-desktop: The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer

CVE-2022-41882 is fixed in nextcloud-desktop on 1 platform, first by DEBIAN-CVE-2022-41882, released November 11, 2022. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. 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. As a workaround, users can block the Nextcloud Desktop client 3.6.0 by setting the `minimum.supported.desktop.version` system config to `3.6.1` on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing files can still be used. Another workaround would be to enforce shares to be accepted by setting the `sharing.force_share_accept` system config to `true` on the server, so new files designed to use this attack vector are not downloaded anymore. Already existing shares can still be abused.

Where it's fixed

ProductFixed inFixReleased
Linux
nextcloud-desktop · Debian 12.15 (bookworm) 3.6.1-1 DEBIAN-CVE-2022-41882 Nov 11, 2022
nextcloud-desktop · Debian 13.5 (trixie) 3.6.1-1 DEBIAN-CVE-2022-41882 Nov 11, 2022
nextcloud-desktop · Debian 14 3.6.1-1 DEBIAN-CVE-2022-41882 Nov 11, 2022

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