PT-2021-19835 · Nextcloud+1 · Nextcloud Server+1

Demonia · Published 2021-06-01 · Updated 2022-10-26 · CVE-2021-32657

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Server versions prior to 10.0.11 Nextcloud Server versions prior to 20.0.10 Nextcloud Server versions prior to 21.0.2

Description A malicious user may be able to break the user administration page, disallowing administrators to administrate users on the Nextcloud instance.

Recommendations For versions prior to 10.0.11, update to version 10.0.11 or later. For versions prior to 20.0.10, update to version 20.0.10 or later. For versions prior to 21.0.2, update to version 21.0.2 or later. As a temporary workaround, administrators can use the OCC command line tool to administrate the Nextcloud users.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALT-PU-2021-3108

ALT-PU-2021-3224

CVE-2021-32657

GHSA-FX62-Q47F-F665

Affected Products

Alt Linux

Nextcloud Server

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2021-32657 · Security Note
• https://security.gentoo.org/glsa/202208-17 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-32657 · Vendor Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fx62-q47f-f665 · Note
• https://t.me/cvenotify/34527 · Telegram Post
• https://t.me/cvenotify/15362 · Telegram Post
• https://hackerone.com/reports/1147611 · Note