CVE-2021-28911

Katalog CVE

CVSS 9.8 · Critical EPSS 1,7%

Kerentanan Improper Restriction of Excessive Authentication Attempts pada bab-technologie eibport firmware. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers access to /tmp path which contains some sensitive data (e.g. device serial number). Having those info, a possible loginId can be self-calculated in a brute force attack against BMX interface. This is usable and part of an attack chain to gain SSH root access.

Rincian

Terbit di NVD

9 September 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-307: Improper Restriction of Excessive Authentication Attempts
CWE-863: Incorrect Authorization

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 75,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://psytester.github.io/CVE-2021-28911 advisory pihak ketiga