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CVE-2021-41241

MEDIUM

4.3

Description

Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.

CVE Details

CVSS v3.1 Score4.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/8/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nextcloud:nextcloud_server

Weaknesses (CWE)

CWE-863CWE-862

References

https://github.com/nextcloud/groupfolders/issues/1692(security-advisories@github.com)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m4wp-r357-4q94(security-advisories@github.com)

https://github.com/nextcloud/server/pull/29362(security-advisories@github.com)

https://security.gentoo.org/glsa/202208-17(security-advisories@github.com)

https://github.com/nextcloud/groupfolders/issues/1692(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m4wp-r357-4q94(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/nextcloud/server/pull/29362(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202208-17(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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