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CVE-2017-12069

8.2 · HIGH

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367.

Published Aug 30, 2017CWE-611EPSS 2.90%

Overview

CVE-2017-12069 is a high-severity vulnerability. It was published on August 30, 2017 and has a CVSS 3.0 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/100559Refwww.securitytracker.com/id/1039510Refopcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdfRefwww.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdfRefwww.securityfocus.com/bid/100559Refwww.securitytracker.com/id/1039510Refopcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdfRefwww.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12069?

CVE-2017-12069 is a high-severity vulnerability. It was published on August 30, 2017 and has a CVSS 3.0 base score of 8.2 (HIGH).

How severe is CVE-2017-12069?

This vulnerability has a CVSS 3.0 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-12069?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-12069?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12069 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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