Improper Authorization in Nextcloud Server - CVE-2021-41241
Published: March 14, 2022
Vulnerability identifier: #VU61276
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-41241
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Nextcloud Server
Nextcloud Server
Software vendor:
Nextcloud
Nextcloud
Description
The vulnerability allows a remote attacker to bypass authorization check.
The vulnerability exists due to insufficient authorization validation in the groupfolders application. A remote user can gain access to the groupfolder but not specific subfolders.
Remediation
Install updates from vendor's website.