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ID

VAR-202011-1295


CVE

CVE-2020-7559


TITLE

Schneider Electric Made PLC Simulator for EcoStruxure Control Expert Multiple vulnerabilities in

Trust: 0.8

sources: JVNDB: JVNDB-2020-009547

DESCRIPTION

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus. PLC Simulator for EcoStruxure Control Expert and PLC Simulator for Unity Pro Is vulnerable to several vulnerabilities: ‥ * Buffer overflow (CWE-120) - CVE-2020-7559 ‥ * Improper checking in exceptional conditions of the program (CWE-754) - CVE-2020-7538 ‥ * Illegal authentication (CWE-863) - CVE-2020-28211 ‥ * Inappropriate restriction of excessive authentication attempts (CWE-307) - CVE-2020-28212 ‥ * Incomplete integrity verification of downloaded code (CWE-494) - CVE-2020-28213The expected impact depends on each vulnerability, but it may be affected as follows. ‥ * By a remote third party Modbus If you send a specially crafted request via EcoStruxure Control Expert of PLC Simulator Is crashed - CVE-2020-7559 , CVE-2020-7538 ‥ * Authentication is bypassed if the memory is overwritten by a local third party using the debugger - CVE-2020-28211 ‥ * By a remote third party Modbus Brute force attack via brute force executes unauthorized commands - CVE-2020-28212 ‥ * By a remote third party Modbus If a specially crafted request is sent via, an unauthorized command will be executed - CVE-2020-28213

Trust: 1.62

sources: NVD: CVE-2020-7559 // JVNDB: JVNDB-2020-009547

AFFECTED PRODUCTS

vendor:schneider electricmodel:ecostruxure control expertscope:eqversion:*

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vendor:schneider electricmodel:plc simulatorscope:eqversion:for ecostruxure control expert 全て

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vendor:schneider electricmodel:plc simulatorscope:eqversion:for unity pro (旧称：ecostruxure control expert) 全て

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sources: JVNDB: JVNDB-2020-009547 // NVD: CVE-2020-7559

CVSS

SEVERITY

CVSSV2

CVSSV3

IPA: JVNDB-2020-009547
value: HIGH

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IPA: JVNDB-2020-009547
value: CRITICAL

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NVD: CVE-2020-7559
value: HIGH

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CNNVD: CNNVD-202011-1675
value: HIGH

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NVD: CVE-2020-7559
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: FALSE
obtainAllPrivilege: FALSE
obtainUserPrivilege: FALSE
obtainOtherPrivilege: FALSE
userInteractionRequired: FALSE
version: 2.0

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NVD: CVE-2020-7559
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

IPA score: JVNDB-2020-009547
baseSeverity: CRITICAL
baseScore: 10
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA score: JVNDB-2020-009547
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: 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

IPA score: JVNDB-2020-009547
baseSeverity: HIGH
baseScore: 7.4
vectorString: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA score: JVNDB-2020-009547
baseSeverity: CRITICAL
baseScore: 9.1
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA score: JVNDB-2020-009547
baseSeverity: HIGH
baseScore: 8.1
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: JVNDB: JVNDB-2020-009547 // JVNDB: JVNDB-2020-009547 // JVNDB: JVNDB-2020-009547 // JVNDB: JVNDB-2020-009547 // JVNDB: JVNDB-2020-009547 // CNNVD: CNNVD-202011-1675 // NVD: CVE-2020-7559

PROBLEMTYPE DATA

problemtype:CWE-120

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problemtype:CWE-494

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problemtype:CWE-307

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problemtype:CWE-863

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problemtype:CWE-754

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sources: JVNDB: JVNDB-2020-009547 // NVD: CVE-2020-7559

THREAT TYPE

remote

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sources: CNNVD: CNNVD-202011-1675

TYPE

other

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sources: CNNVD: CNNVD-202011-1675

CONFIGURATIONS

sources:
            
            
            NVD: CVE-2020-7559

PATCH
title:EcoStruxure Control Experturl:https://www.se.com/ww/en/product-range-download/548-ecostruxure%e2%84%a2-control-expert/?parent-subcategory-id=3950&filter=business-1-industrial-automation-and-control&selected-node-id=12365959203#/software-firmware-tab
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title:Security Notification - PLC Simulator on EcoStruxure™ Control Experturl:https://www.se.com/ww/en/download/document/sevd-2020-315-07/
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sources:
            
            
            JVNDB: JVNDB-2020-009547

EXTERNAL IDS
db:NVDid:CVE-2020-7559
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db:TALOSid:TALOS-2020-1140
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db:SCHNEIDERid:SEVD-2020-315-07
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db:ICS CERTid:ICSA-20-315-03
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db:JVNid:JVNVU92857198
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db:JVNDBid:JVNDB-2020-009547
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db:CNNVDid:CNNVD-202011-1675
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sources:
            
            
            JVNDB: JVNDB-2020-009547 // 
            
            
            
            CNNVD: CNNVD-202011-1675 // 
            
            
            
            NVD: CVE-2020-7559

REFERENCES
url:https://www.se.com/ww/en/download/document/sevd-2020-315-07
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url:https://www.talosintelligence.com/vulnerability_reports/talos-2020-1140
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7559
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7538
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-28211
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-28212
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-28213
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url:https://us-cert.cisa.gov/ics/advisories/icsa-20-315-03
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url:https://jvn.jp/vu/jvnvu92857198/
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url:https://talosintelligence.com/vulnerability_reports/talos-2020-1140
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url:https://nvd.nist.gov/vuln/detail/cve-2020-7559
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sources:
            
            
            JVNDB: JVNDB-2020-009547 // 
            
            
            
            CNNVD: CNNVD-202011-1675 // 
            
            
            
            NVD: CVE-2020-7559

SOURCES
db:JVNDBid:JVNDB-2020-009547
db:CNNVDid:CNNVD-202011-1675
db:NVDid:CVE-2020-7559

LAST UPDATE DATE
2022-05-04T09:15:37.678000+00:00

SOURCES UPDATE DATE
db:JVNDBid:JVNDB-2020-009547date:2020-11-12T06:49:50
db:CNNVDid:CNNVD-202011-1675date:2022-03-10T00:00:00
db:NVDid:CVE-2020-7559date:2022-02-03T13:48:00

SOURCES RELEASE DATE
db:JVNDBid:JVNDB-2020-009547date:2020-11-12T06:49:50
db:CNNVDid:CNNVD-202011-1675date:2020-11-19T00:00:00
db:NVDid:CVE-2020-7559date:2020-11-19T22:15:00