#VU86516 Input validation error in Siemens products - CVE-2023-45620

Vulnerability identifier: #VU86516

Vulnerability risk: Medium

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:Green]

CVE-ID: CVE-2023-45620

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SCALANCE W1750D (JP)
Hardware solutions / Firmware
SCALANCE W1750D (ROW)
Hardware solutions / Firmware
SCALANCE W1750D (USA)
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 in the CLI service accessed via the PAPI protocol. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SCALANCE W1750D (JP): All versions

SCALANCE W1750D (ROW): All versions

SCALANCE W1750D (USA): All versions

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External links
https://cert-portal.siemens.com/productcert/txt/ssa-716164.txt

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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.