National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12069 Detail

Current 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.

Source:  MITRE
Description Last Modified:  08/30/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.2 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H (V3 legend)
Impact Score: 4.2
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.4 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/100559 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039510
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf Patch Vendor Advisory
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-12069
NVD Published Date:
08/30/2017
NVD Last Modified:
10/05/2017