SIMATIC CP 343-1 Vulnerability: Unauthenticated Remote Denial of Service
CVE-2023-51440

7.5HIGH

Key Information:

Vendor

Siemens
Status
SIMATIC CP 343-1
SIMATIC CP 343-1 Lean
SIPLUS NET CP 343-1
SIPLUS NET CP 343-1 Lean
Vendor
CVE Published:
13 February 2024

What is CVE-2023-51440?

A vulnerability exists in the SIMATIC CP 343-1 product line by Siemens that improperly validates TCP sequence numbers. An attacker exploiting this vulnerability can potentially send spoofed TCP RST packets, leading to Denial of Service (DoS) conditions for devices using these affected products. This could allow unauthorized users to disrupt normal operations, emphasizing the need for timely updates and security measures to mitigate potential risks.

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Affected Version(s)

SIMATIC CP 343-1 All versions

SIMATIC CP 343-1 Lean All versions

SIPLUS NET CP 343-1 All versions

References

https://cert-portal.siemens.com/productcert/html/ssa-5168...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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