Vulnerability identifier: #VU84390

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-47375

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC S7-400 CPU 412-2 PN V7
Server applications / SCADA systems
SIMATIC S7-400 CPU 414-3 PN/DP V7
Server applications / SCADA systems
SIMATIC S7-400 CPU 414F-3 PN/DP V7
Server applications / SCADA systems
SIMATIC S7-400 CPU 416-3 PN/DP V7
Server applications / SCADA systems
SIMATIC S7-400 CPU 416F-3 PN/DP V7
Server applications / SCADA systems
SIMATIC PC-Station Plus
Server applications / SCADA systems
SIPLUS S7-400 CPU 414-3 PN/DP V7
Server applications / SCADA systems
SIPLUS S7-400 CPU 416-3 PN/DP V7
Server applications / SCADA systems
SINAMICS S120
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 a boundary error. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC S7-400 CPU 412-2 PN V7: All versions

SIMATIC S7-400 CPU 414-3 PN/DP V7: All versions

SIMATIC S7-400 CPU 414F-3 PN/DP V7: All versions

SIMATIC S7-400 CPU 416-3 PN/DP V7: All versions

SIMATIC S7-400 CPU 416F-3 PN/DP V7: All versions

SIMATIC PC-Station Plus: All versions

SIPLUS S7-400 CPU 414-3 PN/DP V7: All versions

SIPLUS S7-400 CPU 416-3 PN/DP V7: All versions

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-892915.pdf

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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.