#VU68121 Input validation error in Siemens products - CVE-2022-40227

Vulnerability identifier: #VU68121

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2022-40227

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
SIMATIC HMI Comfort Panels
SIMATIC HMI KTP400 Basic
SIMATIC HMI KTP700 Basic
SIMATIC HMI KTP900
SIMATIC HMI KTP1200
SIMATIC HMI KTP Mobile Panels
SIPLUS HMI KTP400 BASIC
SIPLUS HMI KTP700 BASIC
SIPLUS HMI KTP900 BASIC
SIPLUS HMI KTP1200 BASIC

Software vendor:
Siemens

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted TCP packet to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://cert-portal.siemens.com/productcert/pdf/ssa-384224.pdf