#VU62386 Input validation error in Siemens products - CVE-2022-28328

Vulnerability identifier: #VU62386

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-28328

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
SCALANCE W1788-1 M12
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE W1788-2 EEC M12
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE W1788-2 M12
Hardware solutions / Routers & switches, VoIP, GSM, etc
SCALANCE W1788-2IA M12
Hardware solutions / Routers & switches, VoIP, GSM, etc

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. A remote attacker on the local network can send specially crafted Multicast LLC frames and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SCALANCE W1788-1 M12: before 3.0.0

SCALANCE W1788-2 EEC M12: before 3.0.0

SCALANCE W1788-2 M12: before 3.0.0

SCALANCE W1788-2IA M12: before 3.0.0

---

External links
https://cert-portal.siemens.com/productcert/pdf/ssa-392912.pdf

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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