Permissions, Privileges, and Access Controls in ZyXEL Communications Corp. products - CVE-2022-45853

Vulnerability identifier: #VU76987

CSH Severity: Low

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

CVE-ID: CVE-2022-45853

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: ZyXEL Communications Corp.

Affected software:
GS1900-8
GS1900-8HP
GS1900-10HP
GS1900-16
GS1900-24
GS1900-24E
GS1900-24EP
GS1900-24HPv2
GS1900-48
GS1900-48HPv2

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

The vulnerability exists due to application does not properly impose security restrictions, which leads to security restrictions bypass and privilege escalation.

Install updates from vendor's website.

• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-privilege-escalation-vulnerability-in-gs1900-series-switches