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[email protected]CVE-2019-19281

HistoryMar 10, 2020 - 8:15 p.m.

CVE-2019-19281

2020-03-1020:15:18

CWE-400

[email protected]

web.nvd.nist.gov

cve-2019-19281

simatic et 200sp

open controller

cpu 1515sp

denial-of-service

udp

security vulnerability

nvd

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.3%

JSON

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

Affected configurations

NVD

Node

siemenssimatic_et_200sp_open_controller_cpu_1515sp_pc2_firmwareRange2.5–20.8

AND

siemenssimatic_et_200sp_open_controller_cpu_1515sp_pc2Match-

Node

siemenssimatic_s7-1500_cpu_1511-1_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1511-1_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1513-1_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1513-1_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1515-2_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1515-2_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1516-3_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1516-3_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1516-3_dp_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1516-3_dpMatch-

Node

siemenssimatic_s7-1500_cpu_1517-3_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1517-3_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1517-3_dp_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1517-3_dpMatch-

Node

siemenssimatic_s7-1500_cpu_1518-4_pn_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1518-4_pnMatch-

Node

siemenssimatic_s7-1500_cpu_1518-4_dp_firmwareRange2.5–2.8

AND

siemenssimatic_s7-1500_cpu_1518-4_dpMatch-

Node

siemenssimatic_s7-1500_cpu_1507s_firmwareRange2.5–20.8

AND

siemenssimatic_s7-1500_cpu_1507sMatch-

Node

siemenssimatic_s7-1500_cpu_1508s_firmwareRange2.5–20.8

AND

siemenssimatic_s7-1500_cpu_1508sMatch-

Node

siemenssimatic_s7-1500_cpu_1507s_f_firmwareRange2.5–20.8

AND

siemenssimatic_s7-1500_cpu_1507s_fMatch-

Node

siemenssimatic_s7-1500_cpu_1508s_f_firmwareRange2.5–20.8

AND

siemenssimatic_s7-1500_cpu_1508s_fMatch-

CPENameOperatorVersion
siemens:simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmwaresiemens simatic et 200sp open controller cpu 1515sp pc2 firmwarelt20.8

CPE	Name	Operator	Version
siemens:simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware	siemens simatic et 200sp open controller cpu 1515sp pc2 firmware	lt	20.8

CNA Affected

[
  {
    "product": "SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions >= V2.5 and < V20.8"
      }
    ]
  },
  {
    "product": "SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions >= V2.5 and < V2.8"
      }
    ]
  },
  {
    "product": "SIMATIC S7-1500 Software Controller",
    "vendor": "Siemens AG",
    "versions": [
      {
        "status": "affected",
        "version": "All versions >= V2.5 and < V20.8"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf

www.us-cert.gov/ics/advisories/icsa-20-042-11

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.3%

JSON

Related for CVE-2019-19281

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