Number: AV17-097
Date: 10 July 2017
Purpose
The purpose of this advisory is to bring attention to a recently disclosed vulnerability 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 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