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ID

VAR-202103-0975


CVE

CVE-2021-25675


TITLE

SIMATIC S7-PLCSIM  Division by zero vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-004474

DESCRIPTION

A vulnerability has been identified in SIMATIC S7-PLCSIM V5.4 (All versions). An attacker with local access to the system could cause a Denial-of-Service condition in the application when it is used to open a specially crafted file. As a consequence, a divide by zero operation could occur and cause the application to terminate unexpectedly and must be restarted to restore the service. SIMATIC S7-PLCSIM Is vulnerable to division by zero.Service operation interruption (DoS) It may be in a state. SIMATIC S7-PLCSIM V5.4 is a Windows application program that simulates the execution of user programs and is used to simulate S7-300 CPU, S7-400 CPU and WinAC series controllers. Siemens SIMATIC S7-PLCSIM has security vulnerabilities. Attackers can use vulnerabilities to cause a denial of service in the application

Trust: 2.16

sources: NVD: CVE-2021-25675 // JVNDB: JVNDB-2021-004474 // CNVD: CNVD-2021-16445

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-16445

AFFECTED PRODUCTS

vendor:siemensmodel:simatic s7-plcsimscope:eqversion:5.4

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vendor:シーメンスmodel:simatic s7-plcsimscope:eqversion: -

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vendor:シーメンスmodel:simatic s7-plcsimscope:eqversion:5.4

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sources: CNVD: CNVD-2021-16445 // JVNDB: JVNDB-2021-004474 // NVD: CVE-2021-25675

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-25675
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-25675
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2021-16445
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202103-686
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2021-25675
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:N/I:N/A:P
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2021-16445
severity: MEDIUM
baseScore: 4.9
vectorString: AV:L/AC:L/AU:N/C:N/I:N/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-25675
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-25675
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-16445 // JVNDB: JVNDB-2021-004474 // CNNVD: CNNVD-202103-686 // NVD: CVE-2021-25675

PROBLEMTYPE DATA

problemtype:CWE-369

Trust: 1.0

problemtype:Division by zero (CWE-369) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-004474 // NVD: CVE-2021-25675

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202103-686

TYPE

digital error

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sources: CNNVD: CNNVD-202103-686

PATCH

title:SSA-256092url:https://cert-portal.siemens.com/productcert/pdf/ssa-256092.pdf

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title:Siemens SIMATIC Fixes for digital error vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=144278

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sources: JVNDB: JVNDB-2021-004474 // CNNVD: CNNVD-202103-686

EXTERNAL IDS

db:NVDid:CVE-2021-25675

Trust: 3.8

db:SIEMENSid:SSA-256092

Trust: 2.2

db:ICS CERTid:ICSA-21-068-01

Trust: 1.4

db:JVNid:JVNVU93441670

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db:JVNDBid:JVNDB-2021-004474

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db:CNVDid:CNVD-2021-16445

Trust: 0.6

db:AUSCERTid:ESB-2021.0847

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db:CNNVDid:CNNVD-202103-686

Trust: 0.6

sources: CNVD: CNVD-2021-16445 // JVNDB: JVNDB-2021-004474 // CNNVD: CNNVD-202103-686 // NVD: CVE-2021-25675

REFERENCES

url:https://cert-portal.siemens.com/productcert/pdf/ssa-256092.pdf

Trust: 2.2

url:https://nvd.nist.gov/vuln/detail/cve-2021-25675

Trust: 1.4

url:https://jvn.jp/vu/jvnvu93441670/

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url:https://www.cisa.gov/news-events/ics-advisories/icsa-21-068-01

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url:https://us-cert.cisa.gov/ics/advisories/icsa-21-068-01

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url:https://vigilance.fr/vulnerability/siemens-simatic-s7-plcsim-three-vulnerabilities-34785

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url:https://www.auscert.org.au/bulletins/esb-2021.0847

Trust: 0.6

sources: CNVD: CNVD-2021-16445 // JVNDB: JVNDB-2021-004474 // CNNVD: CNNVD-202103-686 // NVD: CVE-2021-25675

SOURCES

db:CNVDid:CNVD-2021-16445
db:JVNDBid:JVNDB-2021-004474
db:CNNVDid:CNNVD-202103-686
db:NVDid:CVE-2021-25675

LAST UPDATE DATE

2024-11-23T20:32:20.403000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-16445date:2021-03-23T00:00:00
db:JVNDBid:JVNDB-2021-004474date:2024-09-12T08:03:00
db:CNNVDid:CNNVD-202103-686date:2021-03-19T00:00:00
db:NVDid:CVE-2021-25675date:2024-11-21T05:55:16.547

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-16445date:2021-03-11T00:00:00
db:JVNDBid:JVNDB-2021-004474date:2021-11-22T00:00:00
db:CNNVDid:CNNVD-202103-686date:2021-03-09T00:00:00
db:NVDid:CVE-2021-25675date:2021-03-15T17:15:22.003