#VU68287 Input validation error in Siemens products - CVE-2022-31766


Vulnerability identifier: #VU68287

Vulnerability risk: High

CVSSv4.0: 6.6 [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:Amber]

CVE-ID: CVE-2022-31766

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
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

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


External links
https://cert-portal.siemens.com/productcert/pdf/ssa-697140.pdf


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.


Latest bulletins with this vulnerability