Improper Restriction of Rendered UI Layers or Frames in ZyXEL Communications Corp. products - CVE-2023-28768

Vulnerability identifier: #VU79883

CSH Severity: Low

CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-28768

CWE-ID: CWE-1021

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper frame handling. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

XS1930-10
XS1930-12HP
XGS2220-30
XGS2220-30HP
XGS2220-54
XGS2220-54HP
XGS2220-30F
XS1930-12F
XMG1930-30
XMG1930-30HP
XGS2220-54FP

Install updates from vendor's website.

XS1930-10 - update to 4.80(ABQE.2)
XS1930-12HP - update to 4.80(ABQF.2)
XGS2220-30 - update to 4.80(ABXN.2)
XGS2220-30HP - update to 4.80(ABXO.2)
XGS2220-54 - update to 4.80(ABXP.2)
XGS2220-54HP - update to 4.80(ABXQ.2)
XGS2220-30F - update to 4.80(ABYE.2)
XS1930-12F - update to 4.80(ABZV.2)
XMG1930-30 - update to 4.80(ACAR.2)
XMG1930-30HP - update to 4.80(ACAS.2)
XGS2220-54FP - update to 4.80(ACCE.2)

• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-xgs2220-xmg1930-and-xs1930-series-switches

• Denial of service in Zyxel XGS2220, XMG1930, and XS1930 series switches