Published: 30/08/2017 Updated: 06/10/2017

CVSS v2 Base Score: 6.4 | Impact Score: 4.9 | Exploitability Score: 10

CVSS v3 Base Score: 8.2 | Impact Score: 4.2 | Exploitability Score: 3.9

VMScore: 570

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code prior to 2017-03-21 and Local Discovery Server (LDS) prior to 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and previous versions), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
siemens wincc
siemens simatic pcs7
ocpfoundation ua .net
ocpfoundation local discovery server

Critical Infrastructure Sectors: Chemical, Energy, Food and Agriculture, Water and Wastewater Systems

CWE-611 https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf http://www.securityfocus.com/bid/100559 http://www.securitytracker.com/id/1039510 https://nvd.nist.gov https://www.cisa.gov/uscert/ics/advisories/ICSA-17-243-01-0

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CVE-2017-12069

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