CVE-2020-12063

Katalog CVE

CVSS 5.3 · Medium EPSS 0,94%

Kerentanan pada postfix. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

A certain Postfix 2.10.1-7 package could allow an attacker to send an email from an arbitrary-looking sender via a homoglyph attack, as demonstrated by the similarity of \xce\xbf to the 'o' character. This is potentially relevant when the /etc/postfix/sender_login feature is used, because a spoofed outbound message that uses a configured sender address is blocked with a "Sender address rejected: not logged in" error message, but a spoofed outbound message that uses a homoglyph of a configured sender address is not blocked. NOTE: some third parties argue that any missed blocking of spoofed outbound messages - except for exact matches to a sender address in the /etc/postfix/sender_login file - is outside the design goals of Postfix and thus cannot be considered a Postfix vulnerability

Rincian

Terbit di NVD

24 April 2020

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:N/I:L/A:N · uraikan di kalkulator

EPSS (30 hari)

0,94% peluang dieksploitasi; lebih tinggi dari 59,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.openwall.com/lists/oss-security/2020/04/23/12 exploit · mailing list · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2020/04/23/3 mailing list · advisory pihak ketiga