PT-2022-3544 · Siemens · Scalance W1788-2 M12+2

Published 2022-04-12 · Updated 2022-04-19 · CVE-2022-27481

Positive Technologies (AI Summary)

CVSS v2.0

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions SCALANCE W1788-1 M12 versions prior to V3.0.0 SCALANCE W1788-2 EEC M12 versions prior to V3.0.0 SCALANCE W1788-2 M12 versions prior to V3.0.0 SCALANCE W1788-2IA M12 versions prior to V3.0.0

Description The issue is related to errors in handling ARP packets, which could allow a remote attacker to cause a denial of service. Affected devices do not properly handle resources of ARP requests, potentially leading to a crash of the entire device due to a race condition.

Recommendations For SCALANCE W1788-1 M12 versions prior to V3.0.0, update to version V3.0.0 or later. For SCALANCE W1788-2 EEC M12 versions prior to V3.0.0, update to version V3.0.0 or later. For SCALANCE W1788-2 M12 versions prior to V3.0.0, update to version V3.0.0 or later. For SCALANCE W1788-2IA M12 versions prior to V3.0.0, update to version V3.0.0 or later.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2022-04328

CVE-2022-27481

Affected Products

Scalance W1788-1 M12

Scalance W1788-2 Eec M12

Scalance W1788-2 M12

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2022-27481 · Security Note
• https://cert-portal.siemens.com/productcert/pdf/ssa-392912.pdf · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-04328 · Security Note
• https://osv.dev/vulnerability/CVE-2022-27481 · Vendor Advisory
• https://t.me/cibsecurity/40584 · Telegram Post