PT-2017-19300 · Siemens · Simatic Logon

Published 2017-08-08 · Updated 2017-11-22 · CVE-2017-9938

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Siemens SIMATIC Logon versions prior to V1.6

Description A vulnerability was discovered that could allow specially crafted packets sent to the SIMATIC Logon Remote Access service on port 16389/tcp to cause a Denial-of-Service condition. The service restarts automatically.

Recommendations For versions prior to V1.6, update to version V1.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the SIMATIC Logon Remote Access service on port 16389/tcp to minimize the risk of exploitation.

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-20

CWE-787

Related Identifiers

CVE-2017-9938

Affected Products

Simatic Logon

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-9938 · Security Note
• https://siemens.com/cert/pool/cert/siemens_security_advisory_ssa-804859.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-9938 · Vendor Advisory
• http://securityfocus.com/bid/99539 · Note
• https://tenable.com/security/research/tra-2017-34 · Note