CVE-2021-41177

Katalog CVE

CVSS 8.1 · High EPSS 1,6%

Kerentanan Improper Control of Interaction Frequency pada nextcloud server. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as `AnonRateThrottle` or `UserRateThrottle`) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5, or 22.2.0. As a workaround, enable a memory cache backend in `config.php`.

Rincian

Terbit di NVD

25 Oktober 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-799: Improper Control of Interaction Frequency

EPSS (30 hari)

1,6% peluang dieksploitasi; lebih tinggi dari 74,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nextcloud/server/pull/28728 patch · advisory pihak ketiga
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2 advisory pihak ketiga
• https://hackerone.com/reports/1265709 permissions required · advisory pihak ketiga
• https://security.gentoo.org/glsa/202208-17 advisory pihak ketiga