#VU21936 Resource exhaustion in Siemens products - CVE-2019-10936


Vulnerability identifier: #VU21936

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2019-10936

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

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

Vendor: Siemens

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: All versions

SINUMERIK 840D sl: All versions

SINUMERIK 828D: before 4.8 SP5

SINAMICS SM120: All versions

SINAMICS SL150: All versions

SINAMICS S150: All versions

SINAMICS S120: All versions

SINAMICS S110: All versions

SINAMICS GM150: All versions

SINAMICS GL150: All versions

SINAMICS GH150: All versions

SINAMICS G150: All versions

SINAMICS G130: All versions

SINAMICS G120: before 4.7 SP10 HF5

SINAMICS G110M: before 4.7 SP10 HF5

SINAMICS DCM: before 1.5 HF1

SIMATIC WinAC RTX (F) 2010: before SP3

SIMATIC S7-400H V6: before 6.0.9

SIMATIC S7-410 V8: All versions

SIMATIC S7-400 V6: All versions

SIMATIC S7-400 PN/DP V7: All versions

SIMATIC S7-300: All versions

SIMATIC S7-1500 CPU: 1.0 - 1.8

SIMATIC S7-1200: 2.00 - 4.2.3

SIMATIC PROFINET Driver: before 2.1

SIMATIC PN/PN Coupler: All versions

SIMATIC HMI KTP Mobile Panels: All versions

SIMATIC HMI Comfort Panels 4”-22”: All versions

SIMATIC HMI Comfort Outdoor Panels 7” & 15”: All versions

SIMATIC ET 200pro: All versions

SIMATIC ET 200ecoPN: All versions

IM 155-6 PN/3 HF: before 4.2.1

IM 155-6 PN/2 HF: before 4.2.2

IM 155-6 PN ST: All versions

IM 155-6 PN HS: All versions

IM 155-6 PN HF: before 4.2.2

IM 155-6 PN HA: All versions

IM 155-6 PN BA: All versions

SIMATIC ET 200S: All versions

IM 155-5 PN ST: All versions

IM 155-5 PN HF: All versions

IM 155-5 PN BA: before 4.2.3

SIMATIC ET 200M: All versions

SIMATIC ET 200AL: All versions

SIMATIC CFU PA: 1.0.1 - 1.1.2

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.


Latest bulletins with this vulnerability


Denial of service in Siemens PROFINET Devices