CVE-2022-27640

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 20-05-2022 03:15

Last modified: - 01-06-2022 08:10

Total changes: - 2

Description

A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions < V1.5.18), SIMATIC CP 443-1 RNA (All versions < V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Adjacent

Attack vector

High

Availability

None

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

6.5

Base score

2.8

3.6

Exploitability score

Impact score

Verification logic

AND

vendor=siemens AND product=simatic_cp_442-1_rna_firmware AND versionEndExcluding=1.5.18

vendor=siemens AND product=simatic_cp_442-1_rna AND version=-

AND

vendor=siemens AND product=simatic_cp_443-1_rna_firmware AND versionEndExcluding=1.5.18

vendor=siemens AND product=simatic_cp_443-1_rna AND version=-

Reference

N/A-Patch, Vendor Advisory

Keywords

CVE-2022-27640

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2022-27640

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures