CVE-2021-36368

Katalog CVE

CVSS 3.7 · Low EPSS 1,7%

Kerentanan Improper Authentication pada openbsd openssh, debian linux. Skor CVSS 3.1 3.7 (Low) menurut NVD.

Deskripsi (NVD)

An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user's behalf. NOTE: the vendor's position is "this is not an authentication bypass, since nothing is being bypassed.

Rincian

Terbit di NVD

13 Maret 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 76,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.openssh.com/security.html advisory vendor
• https://github.com/openssh/openssh-portable/pull/258 patch · advisory pihak ketiga
• https://bugzilla.mindrot.org/show_bug.cgi?id=3316 issue tracking · advisory pihak ketiga
• https://docs.ssh-mitm.at/trivialauth.html advisory pihak ketiga
• https://security-tracker.debian.org/tracker/CVE-2021-36368 advisory pihak ketiga