CVE-2017-14023

moderate-risk

Published 2017-11-06

An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions. The improper input validation vulnerability has been identified, which may allow an authenticated remote attacker who is a member of the administrators group to crash services by sending specially crafted messages to the DCOM interface.

Do I need to act?

2.8% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.9/10 Medium

NETWORK / LOW complexity

Affected Products (3)

Simatic Pcs7

Simatic Wincc

Affected Vendors

Siemens

References (6)

Third Party Advisory http://www.securityfocus.com/bid/101680

Third Party Advisory http://www.securitytracker.com/id/1039729

Third Party Advisory https://ics-cert.us-cert.gov/advisories/ICSA-17-306-01

Third Party Advisory http://www.securityfocus.com/bid/101680

Third Party Advisory http://www.securitytracker.com/id/1039729

Third Party Advisory https://ics-cert.us-cert.gov/advisories/ICSA-17-306-01

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moderate-risk

Severity 20/34 · Moderate

Exploitability 6/34 · Minimal

Exposure 9/34 · Low