Improper access control in ZyXEL Communications Corp. products - CVE-2022-0910
Published: May 24, 2022
Vulnerability identifier: #VU63569
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2022-0910
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ZyXEL Communications Corp.
Affected software:
USG series
USG FLEX series
VPN series
ZyWALL
ATP series
USG series
USG FLEX series
VPN series
ZyWALL
ATP series
Detailed vulnerability description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the CGI program. A remote attacker can downgrade from two-factor authentication to one-factor authentication via an IPsec VPN client.
How to mitigate CVE-2022-0910
Install updates from vendor's website.