CVE-2023-51440

2024-02-1309:15:46

CWE-940

siemens

web.nvd.nist.gov

simatic

cp 343-1

siplus net

vulnerability

tcp

denial of service

nvd

cve-2023-51440

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

17.0%

JSON

A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All versions), SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0) (All versions). Affected products incorrectly validate TCP sequence numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets.

CNA Affected

[
  {
    "vendor": "Siemens",
    "product": "SIMATIC CP 343-1",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC CP 343-1 Lean",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS NET CP 343-1",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS NET CP 343-1 Lean",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ],
    "defaultStatus": "unknown"
  }
]