[Control systems] Siemens SIPROTEC 4 and SIPROTEC Compact Vulnerability

Number: AV17-097
Date: 10 July 2017

Purpose

The purpose of this advisory is to bring attention to a recently disclosed vulnerability VulnerabilityA flaw or weakness in the design or implementation of an information system or its environment that could be exploited to adversely affect an organization's assets or operations. in Siemens SIPROTEC 4 and SIPROTEC Compact products.

Assessment

Multiple vulnerabilities were identified in Siemens SIPROTEC 4 and SIPROTEC Compact products. Exploitation of these vulnerabilities could allow an attacker to perform a denial-of-service attack Denial-of-Service attackAny activity that makes a service unavailable for use by legitimate users, or that delays system operations and functions. under certain conditions.

Affected Products:
Firmware versions for EN100 Ethernet modules as optional for SIPROTEC 4 and SIPROTEC Compact:

  • Firmware version PROFINET IO version V1.04.01 and earlier
  • Firmware version Modbus TCP
  • Firmware version DNP3 TCP
  • Firmware version IEC 104

EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 version V1.02.02 and earlier
SIPROTEC 7SJ66 version V4.23 and earlier
SIPROTEC 7SJ686 version V4.86 and earlier
SIPROTEC 7UT686 version V4.01 and earlier
SIPROTEC 7SD686 version V4.04 and earlier
SIPROTEC 7SJ66, 7SD686, 7SJ686 and 7UT686

CVE References: CVE-2015-5374, CVE-2016-4784, CVE-2016-4785, CVE-2016-7112, CVE-2016-7113, CVE-2016-7114

Suggested Action

CCIRC recommends that owner/operators test and deploy the vendor released updates or workarounds to affected platforms accordingly.

References:

https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-323211.pdf
https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03
https://www.publicsafety.gc.ca/cnt/rsrcs/cybr-ctr/2012/tr12-002-en.aspx

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