CVE-2021-33737

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 14-09-2021 01:15

Last modified: - 14-06-2022 12:15

Total changes: - 5

Description

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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions), SIPLUS NET CP 443-1 Advanced (All versions). 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.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Network

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

AND

vendor=siemens AND product=simatic_cp_343-1_firmware

vendor=siemens AND product=simatic_cp343-1 AND version=-

AND

vendor=siemens AND product=simatic_cp_343-1_advanced_firmware

vendor=siemens AND product=simatic_cp343-1_advanced AND version=-

AND

vendor=siemens AND product=simatic_cp_343-1_erpc_firmware

vendor=siemens AND product=simatic_cp_343-1_erpc

AND

vendor=siemens AND product=simatic_cp_343-1_lean_firmware

vendor=siemens AND product=simatic_cp_343-1_lean

AND

vendor=siemens AND product=simatic_cp_443-1_firmware

vendor=siemens AND product=simatic_cp_443-1

AND

vendor=siemens AND product=simatic_cp_443-1_advanced_firmware

vendor=siemens AND product=simatic_cp_443-1_advanced

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf

Keywords

CVE-2021-33737

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-33737

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures