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[email protected]CVE-2021-40368

HistoryApr 12, 2022 - 9:15 a.m.

CVE-2021-40368

2022-04-1209:15:13

CWE-119

[email protected]

web.nvd.nist.gov

cve-2021-40368

simatic

s7-400

denial-of-service

dos

security vulnerability

nvd

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.4%

JSON

A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.

This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.

Affected configurations

NVD

Node

siemenssimatic_s7-400h_v6_firmwareRange<6.0.10

AND

siemenssimatic_s7-400h_v6Match-

Node

siemenssimatic_s7-400_pn\/dp_v7_firmware

AND

siemenssimatic_s7-400_pn\/dp_v7Match-

Node

siemenssimatic_s7-410_v8_firmware

AND

siemenssimatic_s7-410_v8Match-

Node

siemenssimatic_s7-410_v10_firmwareRange<10.1

AND

siemenssimatic_s7-410_v10Match-

CPENameOperatorVersion
siemens:simatic_s7-400h_v6_firmwaresiemens simatic s7-400h v6 firmwarelt6.0.10

CPE	Name	Operator	Version
siemens:simatic_s7-400h_v6_firmware	siemens simatic s7-400h v6 firmware	lt	6.0.10

CNA Affected

[
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 412-1 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 412-2 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 412-2 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 414-2 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 414-3 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 414-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 414F-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 416-2 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 416-3 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 416-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 416F-2 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 416F-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": " SIMATIC S7-400 CPU 417-4 DP V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)",
    "versions": [
      {
        "version": "All versions < V6.0.10",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)",
    "versions": [
      {
        "version": "All versions < V10.1",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)",
    "versions": [
      {
        "version": "All versions < V8.2.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS S7-400 CPU 414-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS S7-400 CPU 416-3 PN/DP V7",
    "versions": [
      {
        "version": "All versions < V7.0.3",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS S7-400 CPU 416-3 V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "SIPLUS S7-400 CPU 417-4 V7",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.4%

JSON

Related for CVE-2021-40368

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