CVE-2021-36369

Katalog CVE

CVSS 7.5 · High EPSS 1,9%

Kerentanan Improper Authentication pada dropbear ssh project dropbear ssh, debian linux. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.

Rincian

Terbit di NVD

12 Oktober 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 78,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/mkj/dropbear/pull/128 advisory pihak ketiga
• https://github.com/mkj/dropbear/releases release notes · advisory pihak ketiga
• https://github.com/mkj/dropbear/releases/tag/DROPBEAR_2022.82 release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/11/msg00015.html mailing list · advisory pihak ketiga