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ID

VAR-202103-0973


CVE

CVE-2021-25673


TITLE

SIMATIC S7-PLCSIM  Infinite loop vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-004472

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, the application could enter an infinite loop, become unresponsive and must be restarted to restore the service. SIMATIC S7-PLCSIM Exists in an infinite loop vulnerability.Service operation interruption (DoS) It may be in a state. Siemens SIMATIC S7-PLCSIM has security vulnerabilities. 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 a null pointer dereference vulnerability. Attackers can use vulnerabilities to cause a denial of service in the application

Trust: 2.79

sources: NVD: CVE-2021-25673 // JVNDB: JVNDB-2021-004472 // CNVD: CNVD-2021-16447 // CNVD: CNVD-2021-16446 // VULMON: CVE-2021-25673

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 1.2

sources: CNVD: CNVD-2021-16447 // CNVD: CNVD-2021-16446

AFFECTED PRODUCTS

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

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

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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-2021-16447 // CNVD: CNVD-2021-16446 // JVNDB: JVNDB-2021-004472 // NVD: CVE-2021-25673

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-25673
value: MEDIUM

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NVD: CVE-2021-25673
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2021-16447
value: MEDIUM

Trust: 0.6

CNVD: CNVD-2021-16446
value: MEDIUM

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CNNVD: CNNVD-202103-688
value: MEDIUM

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VULMON: CVE-2021-25673
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-25673
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: 1.9

CNVD: CNVD-2021-16447
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

CNVD: CNVD-2021-16446
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-2021-25673
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-2021-25673
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-2021-16447 // CNVD: CNVD-2021-16446 // VULMON: CVE-2021-25673 // JVNDB: JVNDB-2021-004472 // CNNVD: CNNVD-202103-688 // NVD: CVE-2021-25673

PROBLEMTYPE DATA

problemtype:CWE-835

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problemtype:infinite loop (CWE-835) [ others ]

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sources: JVNDB: JVNDB-2021-004472 // NVD: CVE-2021-25673

THREAT TYPE

local

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sources: CNNVD: CNNVD-202103-688

TYPE

other

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sources: CNNVD: CNNVD-202103-688

PATCH

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

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title:Siemens SIMATIC Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=144280

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title:Siemens Security Advisories: Siemens Security Advisoryurl:https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=fbaab90bc558b37138932756e57e4397

Trust: 0.1

sources: VULMON: CVE-2021-25673 // JVNDB: JVNDB-2021-004472 // CNNVD: CNNVD-202103-688

EXTERNAL IDS

db:NVDid:CVE-2021-25673

Trust: 4.5

db:SIEMENSid:SSA-256092

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

Trust: 1.4

db:JVNid:JVNVU93441670

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db:JVNDBid:JVNDB-2021-004472

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db:CNVDid:CNVD-2021-16447

Trust: 0.6

db:CNVDid:CNVD-2021-16446

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db:AUSCERTid:ESB-2021.0847

Trust: 0.6

db:CNNVDid:CNNVD-202103-688

Trust: 0.6

db:VULMONid:CVE-2021-25673

Trust: 0.1

sources: CNVD: CNVD-2021-16447 // CNVD: CNVD-2021-16446 // VULMON: CVE-2021-25673 // JVNDB: JVNDB-2021-004472 // CNNVD: CNNVD-202103-688 // NVD: CVE-2021-25673

REFERENCES

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

Trust: 2.9

url:https://nvd.nist.gov/vuln/detail/cve-2021-25673

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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

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url:https://cwe.mitre.org/data/definitions/835.html

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url:https://nvd.nist.gov

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

Trust: 0.1

sources: CNVD: CNVD-2021-16447 // CNVD: CNVD-2021-16446 // VULMON: CVE-2021-25673 // JVNDB: JVNDB-2021-004472 // CNNVD: CNNVD-202103-688 // NVD: CVE-2021-25673

SOURCES

db:CNVDid:CNVD-2021-16447
db:CNVDid:CNVD-2021-16446
db:VULMONid:CVE-2021-25673
db:JVNDBid:JVNDB-2021-004472
db:CNNVDid:CNNVD-202103-688
db:NVDid:CVE-2021-25673

LAST UPDATE DATE

2024-11-23T21:27:20.971000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-16447date:2021-03-23T00:00:00
db:CNVDid:CNVD-2021-16446date:2021-03-23T00:00:00
db:VULMONid:CVE-2021-25673date:2021-03-18T00:00:00
db:JVNDBid:JVNDB-2021-004472date:2024-09-12T08:00:00
db:CNNVDid:CNNVD-202103-688date:2021-03-19T00:00:00
db:NVDid:CVE-2021-25673date:2024-11-21T05:55:16.273

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-16447date:2021-03-11T00:00:00
db:CNVDid:CNVD-2021-16446date:2021-03-11T00:00:00
db:VULMONid:CVE-2021-25673date:2021-03-15T00:00:00
db:JVNDBid:JVNDB-2021-004472date:2021-11-22T00:00:00
db:CNNVDid:CNNVD-202103-688date:2021-03-09T00:00:00
db:NVDid:CVE-2021-25673date:2021-03-15T17:15:21.847