PT-2021-6622 · Zyxel · Zyxel Nbg6816+1

Published 2021-11-29 · Updated 2022-03-02 · CVE-2021-4030

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ZyXEL NBG6816 (Armor Z1) and NBG6817 (Armor Z2) (affected versions not specified)

Description The issue is related to a cross-site request forgery vulnerability in the HTTP daemon of the firmware. This could allow an attacker to execute arbitrary commands if they trick a local user into visiting a compromised website with malicious scripts.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

BDU:2022-01916

CVE-2021-4030

Affected Products

Zyxel Nbg6816

Zyxel Nbg6817

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-4030 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4030 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01916 · Security Note
• https://zyxel.com/support/forgery-vulnerabilities-of-select-Armor-home-routers.shtml · Vendor Advisory
• https://t.me/cvenotify/27267 · Telegram Post