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.
References (4)
Core 4
Core References
Patch, Vendor Advisory x_refsource_confirm
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdf
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039510
Vendor Advisory x_refsource_confirm
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdf
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/100559
Scores
CVSS v3
8.2
EPSS
0.0094
EPSS Percentile
76.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Details
CWE
CWE-611
Status
published
Products (4)
ocpfoundation/local_discovery_server
< 1.01.333.0
ocpfoundation/ua_.net
< 2017-03-21
siemens/simatic_pcs7
< 8.1
siemens/wincc
< 7.4
Published
Aug 30, 2017
Tracked Since
Feb 18, 2026