CVE-2017-12069

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.

Category

8.2
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.94% Top 25%
Vendor Advisory opcfoundation-onlineapplications.org Vendor Advisory siemens.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf patch vendor advisory
http://www.securitytracker.com/id/1039510 vdb entry
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf vendor advisory
http://www.securityfocus.com/bid/100559 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-12069?
CVE-2017-12069 has been scored as a high severity vulnerability.
How to fix CVE-2017-12069?
To fix CVE-2017-12069, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-12069 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-12069 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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