ICSA-17-243-01: Siemens OPC UA Protocol Stack Discovery Service (Update E)
CISA advisory · released 2017-08-30
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 7, 2025-05-06 (final)
CISA's summary
Summary: Various industrial products use the Discovery Service of the OPC UA protocol stack by the OPC foundation https://github.com/OPCFoundation/UA-.NETStandard and could therefore be affected by the remote resource consumption attacks (CVE-2017-12069).
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SIMATIC IT Production Suite | >=V6.5_and_<V7.1 |
| Siemens | SIMATIC NET PC Software V14 | <V14_SP1_Update_14 |
| Siemens | SIMATIC PCS 7 | 8.0|8.1 |
| Siemens | SIMATIC WinCC | <V7.2 |
| Siemens | SIMATIC WinCC Runtime Professional V13 | vers:all/* |
| Siemens | SIMATIC WinCC Runtime Professional V14 | <V14_SP1 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2017-12069 — CVE-2017-12069 · CWE-611
By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker. To execute the attack, the attacker must have network access to the affected devices.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting these vulnerabilities to CISA.
- Sergey Temnikov, Kaspersky Lab ICS CERT: reporting the vulnerabilities
The advisory's legal notice
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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