CVE-2022-41882
Nextcloud Desktop Client File Execution Vulnerability
Description
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.
INFO
Published Date :
Nov. 11, 2022, 7:15 p.m.
Last Modified :
Nov. 16, 2022, 4:40 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2022-41882
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-41882.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/desktop/pull/5039 | Patch Third Party Advisory |
| https://github.com/nextcloud/desktop/releases/tag/v3.6.1 | Release Notes Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3w86-rm38-8w63 | Third Party Advisory |
| https://github.com/nextcloud/server/pull/34559 | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-41882 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-41882 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Nov. 16, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:nextcloud:desktop:3.6.0:*:*:*:*:*:*:* OR *cpe:2.3:a:nextcloud:desktop:3.6.0:-:*:*:*:*:*:* -
Initial Analysis by [email protected]
Nov. 16, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/nextcloud/desktop/pull/5039 No Types Assigned https://github.com/nextcloud/desktop/pull/5039 Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/desktop/releases/tag/v3.6.1 No Types Assigned https://github.com/nextcloud/desktop/releases/tag/v3.6.1 Release Notes, Third Party Advisory Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3w86-rm38-8w63 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3w86-rm38-8w63 Third Party Advisory Changed Reference Type https://github.com/nextcloud/server/pull/34559 No Types Assigned https://github.com/nextcloud/server/pull/34559 Patch, Third Party Advisory Added CWE NIST CWE-94 Added CPE Configuration OR *cpe:2.3:a:nextcloud:desktop:3.6.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-41882 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-41882
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.01%
score
0.34186
percentile