Improper Verification of Source of a Communication Channel in Siemens products - CVE-2023-51440
Published: February 15, 2024
Vulnerability identifier: #VU86546
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-51440
CWE-ID: CWE-940
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
SIMATIC CP 343-1
SIMATIC CP 343-1 LEAN
SIPLUS NET CP 343-1
SIPLUS NET CP 343-1 Lean
SIMATIC CP 343-1
SIMATIC CP 343-1 LEAN
SIPLUS NET CP 343-1
SIPLUS NET CP 343-1 Lean
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the affected products incorrectly validate TCP sequence numbers. A remote attacker can cause a denial of service condition on the target system.
How to mitigate CVE-2023-51440
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.