Siemens Security Updates – July 2016

Number: AV16-122
Date: July 28, 2016

Purpose

The purpose of this advisory is to bring attention to a SIMATIC security update for NET PC-Software, PCS 7, WinCC and WinCC Runtime Professional released by Siemens.

Assessment

Siemens released security updates for SIMATIC NET PC-Software, PCS 7, WinCC and WinCC Runtime Professional to address multiple vulnerabilities. A remote attacker could potentially exploit these vulnerabilities to perform arbitrary code execution or create denial of service conditions.

Affected versions:
SIMATIC NET PC-Software prior to V13 SP2
SIMATIC PCS v7.1 SP4 and earlier versions
SIMATIC PCS v8.0
SIMATIC PCS v8.1
SIMATIC PCS v8.2
SIMATIC WinCC v7.0 SP 2 and earlier versions
SIMATIC WinCC v7.0 SP 3
SIMATIC WinCC v7.2
SIMATIC WinCC v7.3 prior to Update 10,
SIMATIC WinCC v7.4 prior to Update 1
SIMATIC WinCC Runtime Professional prior to v13 SP 1 Update 9.

CVE References: CVE-2016-5743, CVE-2016-5744, CVE-2016-5874

Suggested action

CCIRC recommends that system administrators test and deploy the vendor-released updates to affected applications accordingly. For more information, please refer to the ICS-CERT references.

References

SIEMENS Security Advisory SSA-378531:
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-378531.pdf

ICS-CERT Advisory (ICSA-16-208-01):
https://ics-cert.us-cert.gov/advisories/ICSA-16-208-01

ICS-CERT Advisory (ICSA-16-208-02):
https://ics-cert.us-cert.gov/advisories/ICSA-16-208-02

Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.
http://www.publicsafety.gc.ca/cnt/ntnl-scrt/cbr-scrt/_fl/CCIRCPublicPGPKey.txt

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589
E-mail: ps.communications-communications.sp@canada.ca

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