#VU68261 Execution with unnecessary privileges in Siemens products - CVE-2022-40182

Vulnerability identifier: #VU68261

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40182

CWE-ID: CWE-250

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Desigo PXM30-1
Hardware solutions / Firmware
Desigo PXM30.E
Hardware solutions / Firmware
Desigo PXM40-1
Hardware solutions / Firmware
Desigo PXM40.E
Hardware solutions / Firmware
Desigo PXM50-1
Hardware solutions / Firmware
Desigo PXM50.E
Hardware solutions / Firmware
PXG3.W100-1
Hardware solutions / Firmware
PXG3.W100-2
Hardware solutions / Firmware
PXG3.W200-1
Hardware solutions / Firmware
PXG3.W200-2
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the device embedded Chromium-based browser is launched as root with the "--no-sandbox" option. A remote user can run the affected binary and execute arbitrary code on the system with root privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Desigo PXM30-1: before 02.20.126.11-41

Desigo PXM30.E: before 02.20.126.11-41

Desigo PXM40-1: before 02.20.126.11-41

Desigo PXM40.E: before 02.20.126.11-41

Desigo PXM50-1: before 02.20.126.11-41

Desigo PXM50.E: before 02.20.126.11-41

PXG3.W100-1: before 02.20.126.11-37

PXG3.W100-2: before 02.20.126.11-41

PXG3.W200-1: before 02.20.126.11-37

PXG3.W200-2: before 02.20.126.11-41

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-360783.pdf

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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