Vulnerability identifier: #VU68121

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40227

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC HMI Comfort Panels
Server applications / SCADA systems
SIMATIC HMI KTP400 Basic
Server applications / SCADA systems
SIMATIC HMI KTP700 Basic
Server applications / SCADA systems
SIMATIC HMI KTP900
Server applications / SCADA systems
SIMATIC HMI KTP1200
Server applications / SCADA systems
SIMATIC HMI KTP Mobile Panels
Server applications / SCADA systems
SIPLUS HMI KTP400 BASIC
Server applications / SCADA systems
SIPLUS HMI KTP700 BASIC
Server applications / SCADA systems
SIPLUS HMI KTP900 BASIC
Server applications / SCADA systems
SIPLUS HMI KTP1200 BASIC
Server applications / SCADA systems

Vendor:

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-384224.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.