PT-2017-19306 · Siemens · 7Km Pac Switched Ethernet Profinet Expansion Module

Published 2017-08-30 · Updated 2017-09-12 · CVE-2017-9945

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Siemens 7KM PAC Switched Ethernet PROFINET expansion module versions prior to V2.1.3

Description A Denial-of-Service condition could be induced by a specially crafted PROFINET DCP packet sent as a local Ethernet (Layer 2) broadcast. The affected component requires a manual restart via the main device to recover.

Recommendations For versions prior to V2.1.3, update to version V2.1.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the local Ethernet (Layer 2) broadcast to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2017-9945

Affected Products

7Km Pac Switched Ethernet Profinet Expansion Module

References · 4

• https://osv.dev/vulnerability/CVE-2017-9945 · Vendor Advisory
• https://siemens.com/cert/pool/cert/siemens_security_advisory_ssa-771218.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9945 · Security Note
• http://securityfocus.com/bid/100562 · Note