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ID

VAR-202103-0974


CVE

CVE-2021-25674


TITLE

SIMATIC S7-PLCSIM  In  NULL  Pointer dereference vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-004473

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 NULL pointer deference condition could cause the application to terminate unexpectedly and must be restarted to restore the service. SIMATIC S7-PLCSIM for, NULL There is a vulnerability in pointer dereference.Service operation interruption (DoS) It may be in a state

Trust: 1.62

sources: NVD: CVE-2021-25674 // JVNDB: JVNDB-2021-004473

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: JVNDB: JVNDB-2021-004473 // NVD: CVE-2021-25674

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-25674
value: MEDIUM

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NVD: CVE-2021-25674
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202103-687
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2021-25674
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

nvd@nist.gov: CVE-2021-25674
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-2021-25674
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: JVNDB: JVNDB-2021-004473 // CNNVD: CNNVD-202103-687 // NVD: CVE-2021-25674

PROBLEMTYPE DATA

problemtype:CWE-476

Trust: 1.0

problemtype:NULL Pointer dereference (CWE-476) [ others ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-004473 // NVD: CVE-2021-25674

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202103-687

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202103-687

PATCH

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

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title:Siemens SIMATIC Fixes for code issue vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=144279

Trust: 0.6

sources: JVNDB: JVNDB-2021-004473 // CNNVD: CNNVD-202103-687

EXTERNAL IDS

db:NVDid:CVE-2021-25674

Trust: 3.2

db:SIEMENSid:SSA-256092

Trust: 1.6

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

Trust: 1.4

db:JVNid:JVNVU93441670

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db:JVNDBid:JVNDB-2021-004473

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db:AUSCERTid:ESB-2021.0847

Trust: 0.6

db:CNNVDid:CNNVD-202103-687

Trust: 0.6

sources: JVNDB: JVNDB-2021-004473 // CNNVD: CNNVD-202103-687 // NVD: CVE-2021-25674

REFERENCES

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

Trust: 1.6

url:https://nvd.nist.gov/vuln/detail/cve-2021-25674

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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

Trust: 0.6

sources: JVNDB: JVNDB-2021-004473 // CNNVD: CNNVD-202103-687 // NVD: CVE-2021-25674

SOURCES

db:JVNDBid:JVNDB-2021-004473
db:CNNVDid:CNNVD-202103-687
db:NVDid:CVE-2021-25674

LAST UPDATE DATE

2024-11-23T20:53:16.720000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2021-004473date:2024-09-12T08:01:00
db:CNNVDid:CNNVD-202103-687date:2021-03-19T00:00:00
db:NVDid:CVE-2021-25674date:2024-11-21T05:55:16.397

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2021-004473date:2021-11-22T00:00:00
db:CNNVDid:CNNVD-202103-687date:2021-03-09T00:00:00
db:NVDid:CVE-2021-25674date:2021-03-15T17:15:21.927