CVE-2016-20012

Katalog CVE

CVSS 5.3 · Medium EPSS 5,3%

Kerentanan Observable Discrepancy pada openbsd openssh, netapp clustered data ontap +3 lainnya. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product

Rincian

Terbit di NVD

15 September 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-203: Observable Discrepancy

EPSS (30 hari)

5,3% peluang dieksploitasi; lebih tinggi dari 92,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/openssh/openssh-portable/pull/270 patch · advisory pihak ketiga
• https://github.com/openssh/openssh-portable/blob/d0fffc88c8fe90c1815c6f4097bc8cbcabc0f3dd/auth2-pubkey.c#L261-... exploit · advisory pihak ketiga
• https://github.com/openssh/openssh-portable/pull/270#issuecomment-920577097 issue tracking · advisory pihak ketiga
• https://github.com/openssh/openssh-portable/pull/270#issuecomment-943909185 issue tracking · advisory pihak ketiga
• https://rushter.com/blog/public-ssh-keys/ exploit · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20211014-0005/ advisory pihak ketiga
• https://utcc.utoronto.ca/~cks/space/blog/tech/SSHKeysAreInfoLeak advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2018/08/24/1 mailing list · advisory pihak ketiga