#VU84423 OS Command Injection in Siemens products - CVE-2023-49691

Vulnerability identifier: #VU84423

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-49691

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RUGGEDCOM RM1224 LTE(4G) EU
Hardware solutions / Routers & switches, VoIP, GSM, etc
RUGGEDCOM RM1224 LTE(4G) NAM
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE M804PB
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 (EVDO)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE M876-3 (ROK)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE M876-4
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE M876-4 (EU)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE M876-4 (NAM)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE MUM853-1 (EU)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE MUM856-1 (EU)
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE MUM856-1 (RoW)
Hardware solutions / Routers & switches, VoIP, GSM, etc
CALANCE M812-1 ADSL-Router (Annex A)
Hardware solutions / Firmware
SCALANCE S615
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the handling of the DDNS configuration. A remote administrator can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RUGGEDCOM RM1224 LTE(4G) EU: before 8.0

RUGGEDCOM RM1224 LTE(4G) NAM: before 8.0

SCALANCE M804PB: before 8.0

CALANCE M812-1 ADSL-Router (Annex A): before 8.0

SCALANCE M812-1 ADSL-Router (Annex B): before 8.0

SCALANCE M816-1 ADSL-Router (Annex A): before 8.0

SCALANCE M816-1 ADSL-Router (Annex B): before 8.0

SCALANCE M826-2 SHDSL-Router: before 8.0

SCALANCE M874-2: before 8.0

SCALANCE M874-3: before 8.0

SCALANCE M876-3 (EVDO): before 8.0

SCALANCE M876-3 (ROK): before 8.0

SCALANCE M876-4: before 8.0

SCALANCE M876-4 (EU): before 8.0

SCALANCE M876-4 (NAM): before 8.0

SCALANCE MUM853-1 (EU): before 8.0

SCALANCE MUM856-1 (EU): before 8.0

SCALANCE MUM856-1 (RoW): before 8.0

SCALANCE S615: before 8.0

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-180704.pdf

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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