Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-33737

A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.

Published

2021-09-14T11:15:24.800

Last Modified

2024-11-21T06:09:28.747

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens simatic_cp_343-1_firmware * Yes
Hardware siemens simatic_cp343-1 - No
Operating System siemens simatic_cp_343-1_advanced_firmware * Yes
Hardware siemens simatic_cp343-1_advanced - No
Operating System siemens simatic_cp_343-1_erpc_firmware * Yes
Hardware siemens simatic_cp_343-1_erpc * No
Operating System siemens simatic_cp_343-1_lean_firmware * Yes
Hardware siemens simatic_cp_343-1_lean * No
Operating System siemens simatic_cp_443-1_firmware * Yes
Hardware siemens simatic_cp_443-1 * No
Operating System siemens simatic_cp_443-1_advanced_firmware * Yes
Hardware siemens simatic_cp_443-1_advanced * No
References