Improper control of a resource through its lifetime in Siemens products - CVE-2022-46144

Vulnerability identifier: #VU70421

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-46144

CWE-ID: CWE-664

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected device does not properly process CLI commands after a user forcefully quitted the SSH connection. A remote user can cause a denial of service condition on the target system.

SCALANCE SC622-2C
SCALANCE SC626-2C
SCALANCE SC632-2C
SCALANCE SC636-2C
SCALANCE SC642-2C
SCALANCE SC646-2C
SCALANCE WAM763-1
SCALANCE WAM766-1
SCALANCE WAM766-1 EEC
SCALANCE WUM763-1
SCALANCE WUM766-1

Install updates from vendor's website.

SCALANCE SC622-2C - update to 3.0
SCALANCE SC626-2C - update to 3.0
SCALANCE SC632-2C - update to 3.0
SCALANCE SC636-2C - update to 3.0
SCALANCE SC642-2C - update to 3.0
SCALANCE SC646-2C - update to 3.0

• https://cert-portal.siemens.com/productcert/pdf/ssa-413565.pdf

• Multiple vulnerabilities in Siemens SCALANCE Products
• Multiple vulnerabilities in Siemens SCALANCE W700 802.11 AX Family