Main Vulnerability Database Vulnerabilities #VU21936

Resource exhaustion in Siemens products - CVE-2019-10936

Published: October 18, 2019

Vulnerability identifier: #VU21936

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-2019-10936

CWE-ID: CWE-400

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 improper resource management when processing UDP packets. A remote attacker can send a large amount of specially crafted UDP packets, trigger resource exhaustion and perform a denial of service (DoS) attack.

Affected software

IM 155-6 PN HS
SINAMICS DCP
SIMATIC ET 200AL
SIMATIC ET 200M
IM 155-5 PN BA
IM 155-5 PN HF
IM 155-5 PN ST
SIMATIC ET 200S
IM 155-6 PN BA
IM 155-6 PN HA
IM 155-6 PN HF
IM 155-6 PN ST
IM 155-6 PN/2 HF
SIMATIC PN/PN Coupler
SIMATIC ET 200pro
SIMATIC ET 200ecoPN
IM 155-6 PN/3 HF
SINAMICS G120
SINAMICS SM120
SINAMICS SL150
SINAMICS S150
SINAMICS S120
SINAMICS S110
SINAMICS GM150
SINAMICS GL150
SINAMICS GH150
SINAMICS G150
SINAMICS G130
SINAMICS G110M
SINAMICS DCM
SIMATIC WinAC RTX (F) 2010
SIMATIC S7-400H V6
SIMATIC S7-410 V8
SIMATIC S7-400 V6
SIMATIC S7-300
SIMATIC S7-1500 CPU
SIMATIC CFU PA
SIMATIC S7-1200
SINUMERIK 840D sl
SIMATIC HMI KTP Mobile Panels
SIMATIC HMI Comfort Panels 4”-22”
SIMATIC HMI Comfort Outdoor Panels 7” & 15”
SINUMERIK 828D
SIMATIC S7-400 PN/DP V7
SIMATIC PROFINET Driver

How to mitigate CVE-2019-10936

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

Development/Evaluation Kits for PROFINET IO:
- DK Standard Ethernet Controller: All versions
- EK-ERTEC 200: All versions
- EK-ERTEC 200P: All versions
SIMATIC CFU PA: All versions prior to 1.2.0
SIMATIC ET 200AL: All versions
SIMATIC ET 200M: All versions
SIMATIC ET 200MP IM 155-5 PN BA: All versions prior to 4.2.3
SIMATIC ET 200MP IM 155-5 PN HF: All versions
SIMATIC ET 200MP IM 155-5 PN ST: All versions
SIMATIC ET 200S: All versions
SIMATIC ET 200SP IM 155-6 PN BA: All versions
SIMATIC ET 200SP IM 155-6 PN HA: All versions
SIMATIC ET 200SP IM 155-6 PN HF: All versions prior to 4.2.2
SIMATIC ET 200SP IM 155-6 PN HS: All versions
SIMATIC ET 200SP IM 155-6 PN ST: All versions
SIMATIC ET 200SP IM 155-6 PN/2 HF: All versions prior to 4.2.2
SIMATIC ET 200SP IM 155-6 PN/3 HF: All versions prior to 4.2.1
SIMATIC ET 200ecoPN (except 6ES7148-6JD00-0AB0 and 6ES7146-6FF00-0AB0): All versions
SIMATIC ET 200pro: All versions
SIMATIC HMI Comfort Outdoor Panels 7" & 15": All versions
SIMATIC HMI Comfort Panels 4" - 22": All versions
SIMATIC HMI KTP Mobile Panels: All versions
SIMATIC PN/PN Coupler: All versions
SIMATIC PROFINET Driver: All versions prior to 2.1
SIMATIC S7-1200 CPU family (incl. F): All versions
SIMATIC S7-1500 CPU family (incl. F): All versions prior to 2.0
SIMATIC S7-300 CPU family (incl. F): All versions
SIMATIC S7-400 PN/DP V7 (incl. F): All versions
SIMATIC S7-400 V6 (incl. F) and below: All versions
SIMATIC S7-400H V6: All versions prior to 6.0.9
SIMATIC S7-410 V8: All versions
SIMATIC WinAC RTX (F) 2010: All versions prior to SP3
SINAMICS DCM: All versions prior to 1.5 HF1
SINAMICS DCP: All versions
SINAMICS G110M v4.7 (PN Control Unit): All versions prior to 4.7 SP10 HF5
SINAMICS G120 v4.7 (PN Control Unit): All versions prior to 4.7 SP10 HF5
SINAMICS G130 v4.7 (Control Unit and CBE20): All versions
SINAMICS G150 (Control Unit and CBE20): All versions
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
SINAMICS S150 (Control Unit and CBE20): All versions
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

IM 155-5 PN BA - update to 4.2.3
IM 155-6 PN HF - update to 4.2.2
IM 155-6 PN/2 HF - update to 4.2.2
SIMATIC PROFINET Driver - update to 2.1
IM 155-6 PN/3 HF - update to 4.2.1
SINAMICS G120 - update to 4.7 SP10 HF5
SINUMERIK 828D - update to 4.8 SP5
SINAMICS G110M - update to 4.7 SP10 HF5
SINAMICS DCM - update to 1.5 HF1
SIMATIC WinAC RTX (F) 2010 - update to SP3
SIMATIC S7-400H V6 - update to 6.0.9
SIMATIC S7-1500 CPU - update to 2.0
SIMATIC CFU PA - update to 1.2.0

External References

https://cert-portal.siemens.com/productcert/pdf/ssa-473245.pdf

Related Security Bulletins

Denial of service in Siemens PROFINET Devices