Main Vulnerability Database Vulnerabilities #VU53819

Authorization bypass through user-controlled key in Nextcloud Server - CVE-2021-32654

Published: June 4, 2021

Vulnerability identifier: #VU53819

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-32654

CWE-ID:

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper authorization. A remote attacker can receive write/read privileges on any Federated File Share.

Nextcloud Server

Install updates from vendor's website.

Nextcloud Server - addressed in versions 19.0.11, 20.0.10, 21.0.2