Denial of service in Siemens SCALANCE and RUGGEDCOM Products



Published: 2022-10-13
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-31766
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SCALANCE WAM763-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WAM766-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WAM766-1 6GHz
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WAM766-1 EEC
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WAM766-1 EEC 6GHz
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WUM763-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WUM766-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE WUM766-1 6GHz
Hardware solutions / Routers & switches, VoIP, GSM, etc

RUGGEDCOM RM1224 LTE
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M804PB
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M812-1 ADSL-Router (Annex A)
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M812-1 ADSL-Router (Annex B)
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M816-1 ADSL-Router (Annex A)
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M816-1 ADSL-Router (Annex B)
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M826-2 SHDSL-Router
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M874-2
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M874-3
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M876-3
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE M876-4
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE MUM853-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE MUM856-1
Hardware solutions / Routers & switches, VoIP, GSM, etc

SCALANCE S615
Hardware solutions / Firmware

Vendor Siemens

Security Bulletin

This security bulletin contains one high risk vulnerability.

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


CPE2.3 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?



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