Resource exhaustion in Siemens products - CVE-2022-25622

Vulnerability identifier: #VU62458

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2022-25622

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Siemens

Affected software:
SIMATIC CFU DIQ
SIMATIC CFU PA
SIMATIC S7-300
SIMATIC S7-400 H V6
SIMATIC S7-410 V8
SIMATIC S7-410 V10
SIMATIC WinAC RTX
SIMIT Simulation Platform
SIMATIC S7-1500
SIMATIC S7-400 PN/DP V7
SIMATIC TDC CP51M1
SIMATIC TDC CPU555

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

The vulnerability exists due to the PROFINET (PNIO) stack, when integrated with the Interniche IP stack does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://cert-portal.siemens.com/productcert/pdf/ssa-446448.pdf