CVE-2022-27640

CVSS V2 Medium 6.1 CVSS V3 Medium 6.5

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.

Overview

CVE ID
CVE-2022-27640

Assigner
productcert@siemens.com

Vulnerability Status
Analyzed

Published Version
2022-05-20T13:15:15

Last Modified Date
2022-06-01T18:10:37

Weakness Enumerations

CWE	URL
CWE-400	http://cwe.mitre.org/data/definitions/400.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:o:siemens:simatic_cp_442-1_rna_firmware::::::::	1	OR	1.5.18
cpe:2.3:h:siemens:simatic_cp_442-1_rna:-:::::::*	0	OR
		AND
cpe:2.3:o:siemens:simatic_cp_443-1_rna_firmware::::::::	1	OR	1.5.18
cpe:2.3:h:siemens:simatic_cp_443-1_rna:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
ADJACENT_NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
6.1

Severity
MEDIUM

Exploitability Score
6.5

Impact Score
6.9

CVSS Version 3

Version
3.1

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

Attack Vector
ADJACENT_NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
6.5

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-480937.pdf

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-27640
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27640

History

Created	Old Value	New Value	Data Type	Notes
2022-05-20 14:00:14				Added to TrackCVE