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ID

VAR-202204-0320


CVE

CVE-2021-40368


TITLE

plural  SIMATIC  Buffer error vulnerability in the product

Trust: 0.8

sources: JVNDB: JVNDB-2022-001565

DESCRIPTION

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. plural SIMATIC The product contains a buffer error vulnerability.Denial of service (DoS) It may be put into a state. The SIMATIC S7-400 CPU family is designed for process control in industrial environments. A denial of service vulnerability exists in Siemens SIMATIC S7-400 CPUs that could be exploited by an attacker to create a denial of service condition

Trust: 2.25

sources: NVD: CVE-2021-40368 // JVNDB: JVNDB-2022-001565 // CNVD: CNVD-2022-28495 // VULMON: CVE-2021-40368

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-28495

AFFECTED PRODUCTS

vendor:siemensmodel:simatic s7-410 v8scope:eqversion:*

Trust: 1.0

vendor:siemensmodel:simatic s7-400h v6scope:ltversion:6.0.10

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vendor:siemensmodel:simatic s7-400 pn\/dp v7scope:eqversion:*

Trust: 1.0

vendor:siemensmodel:simatic s7-410 v10scope:ltversion:10.1

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vendor:シーメンスmodel:simatic s7-410 v8scope: - version: -

Trust: 0.8

vendor:シーメンスmodel:simatic s7-410 v10scope: - version: -

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vendor:シーメンスmodel:simatic s7-400 pn/dp v7scope: - version: -

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vendor:シーメンスmodel:simatic s7-400h v6scope: - version: -

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vendor:siemensmodel:simatic s7-400 h cpu familyscope:eqversion:v6<6.0.10

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vendor:siemensmodel:simatic s7-400 pn/dp cpu familyscope:eqversion:v7

Trust: 0.6

vendor:siemensmodel:simatic s7-410 cpu familyscope:eqversion:v8

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vendor:siemensmodel:simatic s7-410 cpu familyscope:eqversion:v10<10.1

Trust: 0.6

sources: CNVD: CNVD-2022-28495 // JVNDB: JVNDB-2022-001565 // NVD: CVE-2021-40368

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-40368
value: HIGH

Trust: 1.0

productcert@siemens.com: CVE-2021-40368
value: HIGH

Trust: 1.0

NVD: CVE-2021-40368
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-28495
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202204-2941
value: HIGH

Trust: 0.6

VULMON: CVE-2021-40368
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-40368
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2022-28495
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-40368
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 2.0

NVD: CVE-2021-40368
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-28495 // VULMON: CVE-2021-40368 // JVNDB: JVNDB-2022-001565 // CNNVD: CNNVD-202204-2941 // NVD: CVE-2021-40368 // NVD: CVE-2021-40368

PROBLEMTYPE DATA

problemtype:CWE-119

Trust: 1.0

problemtype:Buffer error (CWE-119) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2022-001565 // NVD: CVE-2021-40368

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202204-2941

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202204-2941

PATCH

title:SSA-557541url:https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf

Trust: 0.8

title:Patch for Siemens SIMATIC S7-400 CPU Denial of Service Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/329206

Trust: 0.6

title:Siemens SIMATIC S7-400 Buffer error vulnerability fixurl:http://123.124.177.30/web/xxk/bdxqById.tag?id=232910

Trust: 0.6

sources: CNVD: CNVD-2022-28495 // JVNDB: JVNDB-2022-001565 // CNNVD: CNNVD-202204-2941

EXTERNAL IDS

db:NVDid:CVE-2021-40368

Trust: 3.9

db:SIEMENSid:SSA-557541

Trust: 2.3

db:ICS CERTid:ICSA-22-104-12

Trust: 1.5

db:JVNid:JVNVU91165555

Trust: 0.8

db:JVNDBid:JVNDB-2022-001565

Trust: 0.8

db:CNVDid:CNVD-2022-28495

Trust: 0.6

db:CS-HELPid:SB2022042010

Trust: 0.6

db:AUSCERTid:ESB-2022.4031

Trust: 0.6

db:CNNVDid:CNNVD-202204-2941

Trust: 0.6

db:VULMONid:CVE-2021-40368

Trust: 0.1

sources: CNVD: CNVD-2022-28495 // VULMON: CVE-2021-40368 // JVNDB: JVNDB-2022-001565 // CNNVD: CNNVD-202204-2941 // NVD: CVE-2021-40368

REFERENCES

url:https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf

Trust: 2.3

url:https://www.cisa.gov/uscert/ics/advisories/icsa-22-104-12

Trust: 0.9

url:http://jvn.jp/vu/jvnvu91165555/index.html

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-40368

Trust: 0.8

url:https://cxsecurity.com/cveshow/cve-2021-40368/

Trust: 0.6

url:https://us-cert.cisa.gov/ics/advisories/icsa-22-104-12

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2022.4031

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2022042010

Trust: 0.6

url:https://vigilance.fr/vulnerability/simatic-s7-400-denial-of-service-via-port-102-tcp-38019

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/119.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-28495 // VULMON: CVE-2021-40368 // JVNDB: JVNDB-2022-001565 // CNNVD: CNNVD-202204-2941 // NVD: CVE-2021-40368

CREDITS

Siemens reported this vulnerability to CISA.

Trust: 0.6

sources: CNNVD: CNNVD-202204-2941

SOURCES

db:CNVDid:CNVD-2022-28495
db:VULMONid:CVE-2021-40368
db:JVNDBid:JVNDB-2022-001565
db:CNNVDid:CNNVD-202204-2941
db:NVDid:CVE-2021-40368

LAST UPDATE DATE

2024-08-14T13:42:54.963000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-28495date:2022-04-13T00:00:00
db:VULMONid:CVE-2021-40368date:2022-04-20T00:00:00
db:JVNDBid:JVNDB-2022-001565date:2022-04-21T06:03:00
db:CNNVDid:CNNVD-202204-2941date:2023-04-12T00:00:00
db:NVDid:CVE-2021-40368date:2023-04-11T10:15:11.320

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-28495date:2022-04-13T00:00:00
db:VULMONid:CVE-2021-40368date:2022-04-12T00:00:00
db:JVNDBid:JVNDB-2022-001565date:2022-04-21T00:00:00
db:CNNVDid:CNNVD-202204-2941date:2022-04-12T00:00:00
db:NVDid:CVE-2021-40368date:2022-04-12T09:15:13.343