1) Input validation error

EUVDB-ID: #VU68287

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-31766

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

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 when TCP Event service is enabled. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE WAM763-1: 1.1.0

SCALANCE WAM766-1: 1.1.0

SCALANCE WAM766-1 6GHz: 1.1.0

SCALANCE WAM766-1 EEC: 1.1.0

SCALANCE WAM766-1 EEC 6GHz: 1.1.0

SCALANCE WUM763-1: 1.1.0

SCALANCE WUM766-1: 1.1.0

SCALANCE WUM766-1 6GHz: 1.1.0

RUGGEDCOM RM1224 LTE: before 7.1.2

SCALANCE M804PB: before 7.1.2

SCALANCE M812-1 ADSL-Router (Annex A): before 7.1.2

SCALANCE M812-1 ADSL-Router (Annex B): before 7.1.2

SCALANCE M816-1 ADSL-Router (Annex A): before 7.1.2

SCALANCE M816-1 ADSL-Router (Annex B): before 7.1.2

SCALANCE M826-2 SHDSL-Router: before 7.1.2

SCALANCE M874-2: before 7.1.2

SCALANCE M874-3: before 7.1.2

SCALANCE M876-3: before 7.1.2

SCALANCE M876-4: before 7.1.2

SCALANCE MUM853-1: before 7.1.2

SCALANCE MUM856-1: before 7.1.2

SCALANCE S615: before 7.1.2

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CPE2.3

• cpe:2.3:h:siemens:scalance_wam763-1:*:*:*:*:*:*:*:*

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-697140.pdf

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?