CVE-2022-20805

Katalog CVE

CVSS 4.1 · Medium EPSS 0,18%

Kerentanan Protection Mechanism Failure pada cisco umbrella secure web gateway. Skor CVSS 3.1 4.1 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the automatic decryption process in Cisco Umbrella Secure Web Gateway (SWG) could allow an authenticated, adjacent attacker to bypass the SSL decryption and content filtering policies on an affected system. This vulnerability is due to how the decryption function uses the TLS Sever Name Indication (SNI) extension of an HTTP request to discover the destination domain and determine if the request needs to be decrypted. An attacker could exploit this vulnerability by sending a crafted request over TLS from a client to an unknown or controlled URL. A successful exploit could allow an attacker to bypass the decryption process of Cisco Umbrella SWG and allow malicious content to be downloaded to a host on a protected network. There are workarounds that address this vulnerability.

Rincian

Terbit di NVD

21 April 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-693: Protection Mechanism Failure
CWE-327: Use of a Broken or Risky Cryptographic Algorithm

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 7,3% 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-uswg-fdbps-xtTRKpp6 advisory vendor