Resource exhaustion in Siemens products - CVE-2022-46351
Published: December 16, 2022
Vulnerability identifier: #VU70390
CSH Severity: Low
CVSS v4: 7.1 [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]
CVE-ID: CVE-2022-46351
CWE-ID: CWE-400
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker on the local network can send specially crafted PROFINET DCP packets, trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
SCALANCE X204RNA (HSR)
SCALANCE X204RNA (PRP)
SCALANCE X204RNA EEC (HSR)
SCALANCE X204RNA EEC (PRP)
SCALANCE X204RNA EEC (PRP/HSR)
SCALANCE X204RNA (PRP)
SCALANCE X204RNA EEC (HSR)
SCALANCE X204RNA EEC (PRP)
SCALANCE X204RNA EEC (PRP/HSR)
How to mitigate CVE-2022-46351
Install updates from vendor's website.
SCALANCE X204RNA (HSR) - update to 3.2.7
SCALANCE X204RNA (PRP) - update to 3.2.7
SCALANCE X204RNA EEC (HSR) - update to 3.2.7
SCALANCE X204RNA EEC (PRP) - update to 3.2.7
SCALANCE X204RNA EEC (PRP/HSR) - update to 3.2.7
SCALANCE X204RNA (PRP) - update to 3.2.7
SCALANCE X204RNA EEC (HSR) - update to 3.2.7
SCALANCE X204RNA EEC (PRP) - update to 3.2.7
SCALANCE X204RNA EEC (PRP/HSR) - update to 3.2.7