Resource exhaustion in SIMATIC CP 442-1 RNA and SIMATIC CP 443-1 RNA - CVE-2022-27640
Published: May 11, 2022
Vulnerability identifier: #VU63072
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-2022-27640
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 trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
SIMATIC CP 442-1 RNA
SIMATIC CP 443-1 RNA
SIMATIC CP 443-1 RNA
How to mitigate CVE-2022-27640
Install updates from vendor's website.
SIMATIC CP 442-1 RNA - update to 1.5.18
SIMATIC CP 443-1 RNA - update to 1.5.18
SIMATIC CP 443-1 RNA - update to 1.5.18