Denial of service in Siemens PROFINET Devices

Published: 2019-10-10 | Updated: 2019-10-18

Severity	Medium
Patch available	YES
Number of vulnerabilities	1
CVE ID	CVE-2019-10936
CWE ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	SINAMICS DCP Subscribe SINUMERIK 840D sl SINUMERIK 828D SINAMICS SM120 SINAMICS SL150 SINAMICS S150 SINAMICS S120 SINAMICS S110 SINAMICS GM150 SINAMICS GL150 SINAMICS GH150 SINAMICS G150 SINAMICS G130 SINAMICS G120 SINAMICS G110M SINAMICS DCM SIMATIC WinAC RTX (F) 2010 SIMATIC S7-400H V6 SIMATIC S7-410 V8 SIMATIC S7-400 V6 SIMATIC S7-400 PN/DP V7 SIMATIC S7-300 SIMATIC S7-1500 CPU SIMATIC S7-1200 SIMATIC PROFINET Driver SIMATIC PN/PN Coupler SIMATIC HMI KTP Mobile Panels SIMATIC HMI Comfort Panels 4”-22” SIMATIC HMI Comfort Outdoor Panels 7” & 15” SIMATIC ET 200pro SIMATIC ET 200ecoPN IM 155-6 PN/3 HF IM 155-6 PN/2 HF IM 155-6 PN ST IM 155-6 PN HS IM 155-6 PN HF IM 155-6 PN HA IM 155-6 PN BA SIMATIC ET 200S IM 155-5 PN ST IM 155-5 PN HF IM 155-5 PN BA SIMATIC ET 200M SIMATIC ET 200AL SIMATIC CFU PA
Vendor	Siemens

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Resource exhaustion

Severity: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-10936

CWE-ID: CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')

Description

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.

Mitigation

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

Vulnerable software versions

SINAMICS DCP: -

SINUMERIK 840D sl: -

SINUMERIK 828D: -

SINAMICS SM120: -

SINAMICS SL150: -

SINAMICS S150: -

SINAMICS S120: -

SINAMICS S110: -

SINAMICS GM150: -

SINAMICS GL150: -

SINAMICS GH150: -

SINAMICS G150: -

SINAMICS G130: -

SINAMICS G120: -

SINAMICS G110M: -

SINAMICS DCM: -

SIMATIC WinAC RTX (F) 2010: -

SIMATIC S7-400H V6: -

SIMATIC S7-410 V8: -

SIMATIC S7-400 V6: -

SIMATIC S7-400 PN/DP V7: -

SIMATIC S7-300: -

SIMATIC S7-1500 CPU: 1.0, 1.1, 1.5, 1.6, 1.7, 1.8

SIMATIC S7-1200: 2.00, 2.2, 2.3, 2.6, 3.0, 3.1, 4.0, 4.1, 4.1.1, 4.1.2, 4.2.3

SIMATIC PROFINET Driver: -

SIMATIC PN/PN Coupler: -

SIMATIC HMI KTP Mobile Panels: -

SIMATIC HMI Comfort Panels 4”-22”: -

SIMATIC HMI Comfort Outdoor Panels 7” & 15”: -

SIMATIC ET 200pro: -

SIMATIC ET 200ecoPN: -

IM 155-6 PN/3 HF: -

IM 155-6 PN/2 HF: -

IM 155-6 PN ST: -

IM 155-6 PN HS: -

IM 155-6 PN HF: -

IM 155-6 PN HA: -

IM 155-6 PN BA: -

SIMATIC ET 200S: -

IM 155-5 PN ST: -

IM 155-5 PN HF: -

IM 155-5 PN BA: -

SIMATIC ET 200M: -

SIMATIC ET 200AL: -

SIMATIC CFU PA: 1.0.1, 1.1.1, 1.1.2

CPE

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.