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ID

VAR-202012-0104


CVE

CVE-2020-12521


TITLE

Phoenix Contact PLCnext Control Devices input validation error vulnerability

Trust: 1.2

sources: CNVD: CNVD-2021-07250 // CNNVD: CNNVD-202012-1265

DESCRIPTION

On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot. Phoenix Contact PLCnext Control The device contains an input verification vulnerability.Denial of service (DoS) It may be put into a state

Trust: 2.16

sources: NVD: CVE-2020-12521 // JVNDB: JVNDB-2020-014823 // CNVD: CNVD-2021-07250

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-07250

AFFECTED PRODUCTS

vendor:phoenixcontactmodel:plcnextscope:ltversion:2021.0

Trust: 1.0

vendor:phoenix contactmodel:plcnextscope:eqversion: -

Trust: 0.8

vendor:phoenix contactmodel:plcnextscope:eqversion:plcnext firmware 2021.0 lts

Trust: 0.8

vendor:phoenixmodel:contact phoenix contact plcnext control devices ltsscope:ltversion:2021.0

Trust: 0.6

sources: CNVD: CNVD-2021-07250 // JVNDB: JVNDB-2020-014823 // NVD: CVE-2020-12521

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-12521
value: MEDIUM

Trust: 1.0

info@cert.vde.com: CVE-2020-12521
value: MEDIUM

Trust: 1.0

NVD: CVE-2020-12521
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2021-07250
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202012-1265
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2020-12521
severity: MEDIUM
baseScore: 6.1
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2021-07250
severity: MEDIUM
baseScore: 6.1
vectorString: AV:A/AC:L/AU:N/C:N/I:N/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2020-12521
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 3.6
version: 3.1

Trust: 2.0

OTHER: JVNDB-2020-014823
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: ADJACENT 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-2021-07250 // JVNDB: JVNDB-2020-014823 // CNNVD: CNNVD-202012-1265 // NVD: CVE-2020-12521 // NVD: CVE-2020-12521

PROBLEMTYPE DATA

problemtype:CWE-20

Trust: 1.0

problemtype:Incorrect input confirmation (CWE-20) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2020-014823 // NVD: CVE-2020-12521

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202012-1265

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-202012-1265

PATCH

title:Top Pageurl:https://www.phoenixcontact.com/

Trust: 0.8

sources: JVNDB: JVNDB-2020-014823

EXTERNAL IDS

db:NVDid:CVE-2020-12521

Trust: 3.0

db:CERT@VDEid:VDE-2020-049

Trust: 2.4

db:JVNDBid:JVNDB-2020-014823

Trust: 0.8

db:CNVDid:CNVD-2021-07250

Trust: 0.6

db:CNNVDid:CNNVD-202012-1265

Trust: 0.6

sources: CNVD: CNVD-2021-07250 // JVNDB: JVNDB-2020-014823 // CNNVD: CNNVD-202012-1265 // NVD: CVE-2020-12521

REFERENCES

url:https://cert.vde.com/en-us/advisories/vde-2020-049

Trust: 2.4

url:https://nvd.nist.gov/vuln/detail/cve-2020-12521

Trust: 2.0

sources: CNVD: CNVD-2021-07250 // JVNDB: JVNDB-2020-014823 // CNNVD: CNNVD-202012-1265 // NVD: CVE-2020-12521

SOURCES

db:CNVDid:CNVD-2021-07250
db:JVNDBid:JVNDB-2020-014823
db:CNNVDid:CNNVD-202012-1265
db:NVDid:CVE-2020-12521

LAST UPDATE DATE

2024-11-23T22:16:12.125000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-07250date:2021-01-28T00:00:00
db:JVNDBid:JVNDB-2020-014823date:2021-09-01T04:53:00
db:CNNVDid:CNNVD-202012-1265date:2020-12-24T00:00:00
db:NVDid:CVE-2020-12521date:2024-11-21T04:59:51.477

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-07250date:2021-01-28T00:00:00
db:JVNDBid:JVNDB-2020-014823date:2021-09-01T00:00:00
db:CNNVDid:CNNVD-202012-1265date:2020-12-17T00:00:00
db:NVDid:CVE-2020-12521date:2020-12-17T23:15:13.137