CVE-2020-3246

Katalog CVE

CVSS 4.3 · Medium EPSS 0,90%

Kerentanan Improper Neutralization of CRLF Sequences ('CRLF Injection') pada cisco umbrella. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the web server of Cisco Umbrella could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user of an affected service. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to the browser of the user.

Rincian

Terbit di NVD

6 Mei 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

EPSS (30 hari)

0,90% peluang dieksploitasi; lebih tinggi dari 58,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-head-inject-n4QArJH advisory vendor