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ID

VAR-202102-1176


CVE

CVE-2021-25666


TITLE

SCALANCE W780  and  W740  Vulnerability in allocating resources without restrictions or throttling in the family

Trust: 0.8

sources: JVNDB: JVNDB-2021-003428

DESCRIPTION

A vulnerability has been identified in SCALANCE W780 and W740 (IEEE 802.11n) family (All versions < V6.3). Sending specially crafted packets through the ARP protocol to an affected device could cause a partial denial-of-service, preventing the device to operate normally for a short period of time. SCALANCE W780 and W740 The family is vulnerable to resource allocation without restrictions or throttling.Denial of service (DoS) It may be put into a state. The SCALANCE W700 product is a wireless communication device used to connect industrial components such as a programmable logic controller (PLC) or human machine interface (HMI). The Siemens SCALANCE W780 and W740 ARP protocols have a denial of service vulnerability

Trust: 2.25

sources: NVD: CVE-2021-25666 // JVNDB: JVNDB-2021-003428 // CNVD: CNVD-2021-12079 // VULMON: CVE-2021-25666

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-12079

AFFECTED PRODUCTS

vendor:siemensmodel:scalance w740scope:ltversion:6.3

Trust: 1.0

vendor:siemensmodel:scalance w780scope:ltversion:6.3

Trust: 1.0

vendor:シーメンスmodel:scalance w780scope: - version: -

Trust: 0.8

vendor:シーメンスmodel:scalance w740scope: - version: -

Trust: 0.8

vendor:siemensmodel:scalance w780 and w740 familyscope:ltversion:v6.3

Trust: 0.6

sources: CNVD: CNVD-2021-12079 // JVNDB: JVNDB-2021-003428 // NVD: CVE-2021-25666

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-25666
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-25666
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2021-12079
value: LOW

Trust: 0.6

CNNVD: CNNVD-202102-749
value: MEDIUM

Trust: 0.6

VULMON: CVE-2021-25666
value: LOW

Trust: 0.1

nvd@nist.gov: CVE-2021-25666
severity: LOW
baseScore: 3.3
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 6.5
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-12079
severity: LOW
baseScore: 3.3
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:P
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 6.5
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-25666
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
exploitabilityScore: 2.8
impactScore: 1.4
version: 3.1

Trust: 1.0

NVD: CVE-2021-25666
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-12079 // VULMON: CVE-2021-25666 // JVNDB: JVNDB-2021-003428 // CNNVD: CNNVD-202102-749 // NVD: CVE-2021-25666

PROBLEMTYPE DATA

problemtype:CWE-770

Trust: 1.0

problemtype:Allocation of resources without limits or throttling (CWE-770) [ Other ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-003428 // NVD: CVE-2021-25666

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202102-749

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202102-749

PATCH

title:SSA-686152url:https://cert-portal.siemens.com/productcert/pdf/ssa-686152.pdf

Trust: 0.8

title:Patch for Siemens SCALANCE W780 and W740 ARP Protocol Denial of Service Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/249056

Trust: 0.6

title:SCALANCE W780 and W740 Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=141171

Trust: 0.6

title:Siemens Security Advisories: Siemens Security Advisoryurl:https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=5fb80eb83f37b54a695bf660d97130b6

Trust: 0.1

sources: CNVD: CNVD-2021-12079 // VULMON: CVE-2021-25666 // JVNDB: JVNDB-2021-003428 // CNNVD: CNNVD-202102-749

EXTERNAL IDS

db:NVDid:CVE-2021-25666

Trust: 3.1

db:ICS CERTid:ICSA-21-040-07

Trust: 2.5

db:SIEMENSid:SSA-686152

Trust: 2.3

db:JVNid:JVNVU91083521

Trust: 0.8

db:JVNDBid:JVNDB-2021-003428

Trust: 0.8

db:CNVDid:CNVD-2021-12079

Trust: 0.6

db:AUSCERTid:ESB-2021.0497

Trust: 0.6

db:CNNVDid:CNNVD-202102-749

Trust: 0.6

db:VULMONid:CVE-2021-25666

Trust: 0.1

sources: CNVD: CNVD-2021-12079 // VULMON: CVE-2021-25666 // JVNDB: JVNDB-2021-003428 // CNNVD: CNNVD-202102-749 // NVD: CVE-2021-25666

REFERENCES

url:https://us-cert.cisa.gov/ics/advisories/icsa-21-040-07

Trust: 3.1

url:https://cert-portal.siemens.com/productcert/pdf/ssa-686152.pdf

Trust: 2.3

url:http://jvn.jp/vu/jvnvu91083521

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-25666

Trust: 0.8

url:https://www.auscert.org.au/bulletins/esb-2021.0497

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/770.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://cert-portal.siemens.com/productcert/txt/ssa-686152.txt

Trust: 0.1

sources: CNVD: CNVD-2021-12079 // VULMON: CVE-2021-25666 // JVNDB: JVNDB-2021-003428 // CNNVD: CNNVD-202102-749 // NVD: CVE-2021-25666

SOURCES

db:CNVDid:CNVD-2021-12079
db:VULMONid:CVE-2021-25666
db:JVNDBid:JVNDB-2021-003428
db:CNNVDid:CNNVD-202102-749
db:NVDid:CVE-2021-25666

LAST UPDATE DATE

2024-11-23T21:14:27.933000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-12079date:2021-04-12T00:00:00
db:VULMONid:CVE-2021-25666date:2021-02-12T00:00:00
db:JVNDBid:JVNDB-2021-003428date:2021-10-26T09:04:00
db:CNNVDid:CNNVD-202102-749date:2021-02-22T00:00:00
db:NVDid:CVE-2021-25666date:2024-11-21T05:55:15.220

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-12079date:2021-02-23T00:00:00
db:VULMONid:CVE-2021-25666date:2021-02-09T00:00:00
db:JVNDBid:JVNDB-2021-003428date:2021-10-26T00:00:00
db:CNNVDid:CNNVD-202102-749date:2021-02-09T00:00:00
db:NVDid:CVE-2021-25666date:2021-02-09T18:15:51.573