CVE-2021-41241
Assigner: GitHub_M
Published: 2022-03-08T18:25:10
State: PUBLISHED
affected: product: security-advisories
vendor: nextcloud
versions: status: affected
version: < 20.0.14
status: affected
version: >= 21.0.0, < 21.0.6
status: affected
version: >= 22.2.0, < 22.2.1
descriptions: value: 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.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
problemTypes: descriptions: cweId: CWE-863
description: CWE-863: Incorrect Authorization
type: CWE
source: advisory: GHSA-m4wp-r357-4q94
discovery: UNKNOWN
title: Advanced permissions is not respected for subfolders in Nextcloud server