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[email protected]CVE-2019-13942

HistoryDec 12, 2019 - 7:15 p.m.

CVE-2019-13942

2019-12-1219:15:14

CWE-119

[email protected]

web.nvd.nist.gov

cve-2019-13942

en100

ethernet module

dnp3

iec 61850

iec104

modbus tcp

profinet io

buffer overflow

webserver

denial-of-service

nvd

security vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

44.9%

JSON

A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC104 variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). An unauthorized user could exploit a buffer overflow vulnerability in the webserver. Specially crafted packets sent could cause a Denial-of-Service condition and if certain conditions are met, the affected devices must be restarted manually to fully recover. At the time of advisory publication no public exploitation of this security vulnerability was known.

Affected configurations

NVD

Node

siemensen100_ethernet_moduleMatch-

AND

siemensen100_ethernet_module_with_firmware_variant_dnp3_tcp

siemensen100_ethernet_module_with_firmware_variant_iec_61850Range<4.37

siemensen100_ethernet_module_with_firmware_variant_iec104

siemensen100_ethernet_module_with_firmware_variant_modbus_tcp

siemensen100_ethernet_module_with_firmware_variant_profinet_io

CPENameOperatorVersion
siemens:en100_ethernet_module_with_firmware_variant_dnp3_tcpsiemens en100 ethernet module with firmware variant dnp3 tcpeq*
siemens:en100_ethernet_module_with_firmware_variant_iec_61850siemens en100 ethernet module with firmware variant iec 61850lt4.37
siemens:en100_ethernet_module_with_firmware_variant_iec104siemens en100 ethernet module with firmware variant iec104eq*
siemens:en100_ethernet_module_with_firmware_variant_modbus_tcpsiemens en100 ethernet module with firmware variant modbus tcpeq*
siemens:en100_ethernet_module_with_firmware_variant_profinet_iosiemens en100 ethernet module with firmware variant profinet ioeq*

CPE	Name	Operator	Version
siemens:en100_ethernet_module_with_firmware_variant_dnp3_tcp	siemens en100 ethernet module with firmware variant dnp3 tcp	eq	*
siemens:en100_ethernet_module_with_firmware_variant_iec_61850	siemens en100 ethernet module with firmware variant iec 61850	lt	4.37
siemens:en100_ethernet_module_with_firmware_variant_iec104	siemens en100 ethernet module with firmware variant iec104	eq	*
siemens:en100_ethernet_module_with_firmware_variant_modbus_tcp	siemens en100 ethernet module with firmware variant modbus tcp	eq	*
siemens:en100_ethernet_module_with_firmware_variant_profinet_io	siemens en100 ethernet module with firmware variant profinet io	eq	*

CNA Affected

[
  {
    "product": "EN100 Ethernet module DNP3 variant",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "EN100 Ethernet module IEC 61850 variant",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V4.37"
      }
    ]
  },
  {
    "product": "EN100 Ethernet module IEC104 variant",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "EN100 Ethernet module Modbus TCP variant",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "EN100 Ethernet module PROFINET IO variant",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-418979.pdf

www.us-cert.gov/ics/advisories/icsa-19-344-07

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

44.9%

JSON

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