Main Vulnerability Database Vulnerabilities #VU21932

Input validation error in Siemens products - CVE-2019-10923

Published: October 18, 2019

Vulnerability identifier: #VU21932

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-10923

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted packet, break the real-time synchronization of the affected installation and cause a denial-of-service condition on the target system.

Affected software

SINUMERIK 828D
SINUMERIK 840D sl
SIMATIC S7-400 PN/DP V7
CP1604
CP1616
SCALANCE X-200 IRT
SIMATIC ET 200M
SIMATIC ET 200S
SIMATIC ET 200ecoPN
SIMATIC ET 200pro
SIMATIC PN/PN Coupler
SIMATIC S7-300
SIMATIC S7-400
SIMATIC WinAC RTX (F) 2010
SIMOTION Firmware
SINAMICS DCM
SINAMICS DCP
SINAMICS G110M
SINAMICS G120
SINAMICS G130
SINAMICS G150
SINAMICS GH150
SINAMICS GL150
SINAMICS GM150
SINAMICS S110
SINAMICS S120
SINAMICS S150
SINAMICS SL150
SINAMICS SM120

How to mitigate CVE-2019-10923

Install updates from vendor's website for the following vulnerable products:

CP1604/CP1616: All versions prior to 2.8
Development/Evaluation Kits for PROFINET IO:
- DK Standard Ethernet Controller: All versions prior to 4.1.1 Patch 05
- EK-ERTEC 200: All versions prior to 4.5.0 Patch 01
- EK-ERTEC 200P: All versions prior to 4.5.0
SCALANCE X-200IRT: All versions prior to 5.2.1
SIMATIC ET 200M: All versions
SIMATIC ET 200S: All versions
SIMATIC ET 200ecoPN (except 6ES7148-6JD00-0AB0 and 6ES7146-6FF00-0AB0): All versions
SIMATIC ET 200pro: All versions
SIMATIC PN/PN Coupler 6ES7158-3AD01-0XA0: All versions
SIMATIC S7-300 CPU family (incl. F): All versions
SIMATIC S7-400 (incl. F) v6 and below: All versions
SIMATIC S7-400 PN/DP v7 (incl. F): All versions
SIMATIC WinAC RTX (F) 2010: All versions prior to SP3
SIMOTION: All versions
SINAMICS DCM: All versions prior to 1.5 HF1
SINAMICS DCP: All versions
SINAMICS G110M v4.7 (Control Unit): All versions prior to 4.7 SP10 HF5
SINAMICS G120 v4.7 (Control Unit): All versions prior to 4.7 SP10 HF5
SINAMICS G130 v4.7 (Control Unit): All versions prior to 4.7 HF29
SINAMICS G150 (Control Unit): All versions prior to 4.8
SINAMICS GH150 v4.7 (Control Unit): All versions
SINAMICS GL150 v4.7 (Control Unit): All versions
SINAMICS GM150 v4.7 (Control Unit): All versions
SINAMICS S110 (Control Unit): All versions
SINAMICS S120 v4.7 (Control Unit and CBE20): All versions prior to 4.7 HF34
SINAMICS S150 (Control Unit): All versions prior to 4.8
SINAMICS SL150 v4.7 (Control Unit): All versions
SINAMICS SM120 v4.7 (Control Unit): All versions
SINUMERIK 828D: All versions prior to 4.8 SP5
SINUMERIK 840D sl: All versions

SINUMERIK 828D - update to 4.8 SP5
SCALANCE X-200 IRT - update to 5.2.1
SINAMICS DCM - update to 1.5 HF1
SINAMICS G110M - update to 4.7 SP10 HF5
SINAMICS G120 - update to 4.7 SP10 HF5
SINAMICS G130 - update to 4.7 HF29
SINAMICS G150 - update to 4.8
SINAMICS S120 - update to 4.7 HF34
SINAMICS S150 - update to 4.8
CP1604 - update to 2.8
CP1616 - update to 2.8

External References

Related Security Bulletins

Denial of service in Siemens Industrial Real-Time (IRT) Devices