CVE-2021-41179

Katalog CVE

CVSS 6.5 · Medium EPSS 1,2%

Kerentanan Missing Critical Step in Authentication pada nextcloud server. Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

Nextcloud is an open-source, self-hosted productivity platform. Prior to Nextcloud Server versions 20.0.13, 21.0.5, and 22.2.0, the Two-Factor Authentication wasn't enforced for pages marked as public. Any page marked as `@PublicPage` could thus be accessed with a valid user session that isn't authenticated. This particularly affects the Nextcloud Talk application, as this could be leveraged to gain access to any private chat channel without going through the Two-Factor flow. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5 or 22.2.0. There are no known workarounds aside from upgrading.

Rincian

Terbit di NVD

25 Oktober 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-304: Missing Critical Step in Authentication

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 67,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nextcloud/server/pull/28725 patch · advisory pihak ketiga
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7hvh-rc6f-px23 advisory pihak ketiga
• https://hackerone.com/reports/1322865 permissions required