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ID

VAR-202011-1292


CVE

CVE-2020-7556


TITLE

Schneider Electric Made Interactive Graphical SCADA System Multiple vulnerabilities in

Trust: 0.8

sources: JVNDB: JVNDB-2020-009593

DESCRIPTION

A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition. Interactive Graphical SCADA System (IGSS) Is Schneider Electric Software for monitoring and controlling control systems provided by the company. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric IGSS. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the parsing of CGF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process

Trust: 2.88

sources: NVD: CVE-2020-7556 // JVNDB: JVNDB-2020-009593 // ZDI: ZDI-21-095 // CNVD: CNVD-2020-70523 // VULHUB: VHN-185681

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-70523

AFFECTED PRODUCTS

vendor:schneider electricmodel:interactive graphical scada systemscope:lteversion:14.0.0.20247

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vendor:schneider electricmodel:interactive graphical scada systemscope:eqversion:version 14.0.0.20247

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vendor:schneider electricmodel:igssscope: - version: -

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vendor:schneidermodel:electric interactive graphical scada systemscope:eqversion:14.0.0.20247

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sources: ZDI: ZDI-21-095 // CNVD: CNVD-2020-70523 // JVNDB: JVNDB-2020-009593 // NVD: CVE-2020-7556

CVSS

SEVERITY

CVSSV2

CVSSV3

IPA: JVNDB-2020-009593
value: HIGH

Trust: 7.2

nvd@nist.gov: CVE-2020-7556
value: HIGH

Trust: 1.0

ZDI: CVE-2020-7556
value: HIGH

Trust: 0.7

CNVD: CNVD-2020-70523
value: MEDIUM

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CNNVD: CNNVD-202011-1558
value: HIGH

Trust: 0.6

VULHUB: VHN-185681
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2020-7556
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

CNVD: CNVD-2020-70523
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

VULHUB: VHN-185681
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

IPA score: JVNDB-2020-009593
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 7.2

nvd@nist.gov: CVE-2020-7556
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.1

Trust: 1.0

ZDI: CVE-2020-7556
baseSeverity: HIGH
baseScore: 7.8
vectorString: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.0

Trust: 0.7

sources: ZDI: ZDI-21-095 // CNVD: CNVD-2020-70523 // VULHUB: VHN-185681 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // JVNDB: JVNDB-2020-009593 // CNNVD: CNNVD-202011-1558 // NVD: CVE-2020-7556

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.9

problemtype:CWE-119

Trust: 0.8

problemtype:CWE-125

Trust: 0.8

sources: VULHUB: VHN-185681 // JVNDB: JVNDB-2020-009593 // NVD: CVE-2020-7556

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202011-1558

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202011-1558

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2020-009593

PATCH
title:Security Notification - Interactive Graphical SCADA System (IGSS)url:https://www.se.com/ww/en/download/document/SEVD-2020-315-03
Trust: 0.8
title:IGSS Licensed Versionsurl:https://igss.schneider-electric.com/licensed-versions
Trust: 0.8
title:Schneider Electric has issued an update to correct this vulnerability.url:https://www.se.com/ww/en/download/document/SEVD-2020-315-03/
Trust: 0.7
title:Patch for Schneider Electric Interactive Graphical SCADA System buffer overflow vulnerability (CNVD-2020-70523)url:https://www.cnvd.org.cn/patchInfo/show/241735
Trust: 0.6
title:Schneider Electric Interactive Graphical SCADA System Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=135149
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sources:
            
            
            ZDI: ZDI-21-095 // 
            
            
            
            CNVD: CNVD-2020-70523 // 
            
            
            
            JVNDB: JVNDB-2020-009593 // 
            
            
            
            CNNVD: CNNVD-202011-1558

EXTERNAL IDS
db:NVDid:CVE-2020-7556
Trust: 3.8
db:ZDIid:ZDI-21-095
Trust: 2.4
db:SCHNEIDERid:SEVD-2020-315-03
Trust: 2.3
db:ICS CERTid:ICSA-20-324-04
Trust: 1.4
db:JVNid:JVNVU99979220
Trust: 0.8
db:JVNDBid:JVNDB-2020-009593
Trust: 0.8
db:ZDI_CANid:ZDI-CAN-11296
Trust: 0.7
db:CNNVDid:CNNVD-202011-1558
Trust: 0.7
db:CNVDid:CNVD-2020-70523
Trust: 0.6
db:AUSCERTid:ESB-2020.4088
Trust: 0.6
db:VULHUBid:VHN-185681
Trust: 0.1
sources:
            
            
            ZDI: ZDI-21-095 // 
            
            
            
            CNVD: CNVD-2020-70523 // 
            
            
            
            VULHUB: VHN-185681 // 
            
            
            
            JVNDB: JVNDB-2020-009593 // 
            
            
            
            CNNVD: CNNVD-202011-1558 // 
            
            
            
            NVD: CVE-2020-7556

REFERENCES
url:https://www.se.com/ww/en/download/document/sevd-2020-315-03/
Trust: 3.0
url:https://www.zerodayinitiative.com/advisories/zdi-21-095/
Trust: 1.7
url:https://us-cert.cisa.gov/ics/advisories/icsa-20-324-04
Trust: 1.4
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7550
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7558
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7551
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7552
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7553
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7554
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7555
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7556
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url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7557
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url:https://jvn.jp/vu/jvnvu99979220
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url:https://nvd.nist.gov/vuln/detail/cve-2020-7556
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2020.4088/
Trust: 0.6
sources:
            
            
            ZDI: ZDI-21-095 // 
            
            
            
            CNVD: CNVD-2020-70523 // 
            
            
            
            VULHUB: VHN-185681 // 
            
            
            
            JVNDB: JVNDB-2020-009593 // 
            
            
            
            CNNVD: CNNVD-202011-1558 // 
            
            
            
            NVD: CVE-2020-7556

CREDITS
kimiya
Trust: 0.7
sources:
            
            
            ZDI: ZDI-21-095

SOURCES
db:ZDIid:ZDI-21-095
db:CNVDid:CNVD-2020-70523
db:VULHUBid:VHN-185681
db:JVNDBid:JVNDB-2020-009593
db:CNNVDid:CNNVD-202011-1558
db:NVDid:CVE-2020-7556

LAST UPDATE DATE
2024-11-23T21:35:03.835000+00:00

SOURCES UPDATE DATE
db:ZDIid:ZDI-21-095date:2021-01-29T00:00:00
db:CNVDid:CNVD-2020-70523date:2020-12-10T00:00:00
db:VULHUBid:VHN-185681date:2021-02-01T00:00:00
db:JVNDBid:JVNDB-2020-009593date:2020-11-19T08:46:47
db:CNNVDid:CNNVD-202011-1558date:2021-02-01T00:00:00
db:NVDid:CVE-2020-7556date:2024-11-21T05:37:22.400

SOURCES RELEASE DATE
db:ZDIid:ZDI-21-095date:2021-01-29T00:00:00
db:CNVDid:CNVD-2020-70523date:2020-11-24T00:00:00
db:VULHUBid:VHN-185681date:2020-11-19T00:00:00
db:JVNDBid:JVNDB-2020-009593date:2020-11-19T08:46:47
db:CNNVDid:CNNVD-202011-1558date:2020-11-17T00:00:00
db:NVDid:CVE-2020-7556date:2020-11-19T22:15:14.597