Permissions, Privileges, and Access Controls in ZyXEL Communications Corp. products - CVE-2022-30526

Vulnerability identifier: #VU65410

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear

CVE-ID: CVE-2022-30526

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vendor: ZyXEL Communications Corp.

Affected software:
USG FLEX 200
USG FLEX 100W
USG FLEX 500
USG FLEX 700
USG FLEX 50W
USG20W-VPN
ATP series
VPN series
USG series
ZyWALL

The vulnerability allows a local attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the CLI command. A local attacker can execute arbitrary OS commands with root privileges.

Install updates from vendor's website.

• https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml