PT-2021-17431 · Siemens · Sinamics Sl150+2

Published 2021-06-15 · Updated 2021-06-23 · CVE-2021-27388

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SINAMICS SL150: All versions SINAMICS SM150: All versions SINAMICS SM150i: All versions

Description The SINAMICS medium voltage routable products are affected by a vulnerability in the Sm@rtServer component for remote access. This vulnerability could allow an unauthenticated attacker to cause a denial-of-service condition, and/or execution of limited configuration modifications and/or execution of limited control commands on the SINAMICS Medium Voltage Products, Remote Access.

Recommendations For SINAMICS SL150, consider disabling remote access via the Sm@rtServer component until a fix is available. For SINAMICS SM150, restrict access to the Sm@rtServer component to minimize the risk of exploitation. For SINAMICS SM150i, avoid using remote access features that rely on the Sm@rtServer component until the issue is resolved.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-27388

Affected Products

Sinamics Sl150

Sinamics Sm150

Sinamics Sm150I

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2021-27388 · Security Note
• https://t.me/cvenotify/16378 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04 · Note