CVE-2019-6575 Information

Description

A vulnerability has been identified in SIMATIC CP 443-1 OPC UA (All versions) SIMATIC CP443-1 OPC UA (incl. SIPLUS NET variants) (All versions) SIMATIC ET 200 Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions V2.7) SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions V2.7) SIMATIC HMI Comfort Outdoor Panels 7\ & 15\ (incl. SIPLUS variants) (All versions V15.1 Upd 4) SIMATIC HMI Comfort Panels 4\ - 22\ (incl. SIPLUS variants) (All versions V15.1 Upd 4) SIMATIC HMI KTP Mobile Panels KTP400F KTP700 KTP700F KTP900 and KTP900F (All versions V15.1 Upd 4) SIMATIC HMI KTP Mobile Panels KTP400F KTP700 KTP700F KTP900 und KTP900F (incl. SIPLUS variants) (All versions V15.1 Upd 4) SIMATIC IPC DiagMonitor (All versions V5.1.3) SIMATIC NET PC Software (All versions = V7.1 V16) SIMATIC RF188C (All versions V1.1.0) SIMATIC RF600R (All versions V3.2.1) SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions = V2.5 V2.6.1) SIMATIC S7-1500 Software Controller (All versions between V2.5 (including) and V2.7 (excluding)) SIMATIC WinCC OA (All versions V3.15-P018) SIMATIC WinCC Runtime Advanced (All versions V15.1 Upd 4) SINEC-NMS (All versions V1.0 SP1) SINEMA Server (All versions V14 SP2) SINUMERIK OPC UA Server (All versions V2.1) TeleControl Server Basic (All versions). Specially crafted network packets sent to affected devices on port 4840/tcp could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the OPC communication or crash the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the OPC communication. At the time of advisory publication no public exploitation of this security vulnerability was known.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-307392.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5