CVE-2017-12069
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.2 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- EPSS
- 2.90% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- siemens/simatic pcs7 · siemens/wincc · ocpfoundation/local discovery server · ocpfoundation/ua .net
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/100559Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039510
- https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdfPatch, Vendor Advisory
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdfVendor Advisory
- http://www.securityfocus.com/bid/100559Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039510
- https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-12069.pdfPatch, Vendor Advisory
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-535640.pdfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.