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ID

VAR-202008-1030


CVE

CVE-2020-7521


TITLE

Schneider Electric Made APC Easy UPS On-Line Software Path Traversal Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2020-007431

DESCRIPTION

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in SFAPV9601 - APC Easy UPS On-Line Software (V2.0 and earlier) when accessing a vulnerable method of `FileUploadServlet` which may lead to uploading executable files to non-specified directories. * Past traversal (CWE-22) - CVE-2020-7521 , CVE-2020-7522By a remote third party, " FileUploadServlet , " SoundUploadServlet Accessed the method and uploaded the executable file to an unspecified directory - CVE-2020-7521 , CVE-2020-7522. Authentication is not required to exploit this vulnerability.The specific flaw exists within the FileUploadServlet class. When parsing the filename parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM

Trust: 2.79

sources: NVD: CVE-2020-7521 // JVNDB: JVNDB-2020-007431 // ZDI: ZDI-20-1006 // CNVD: CNVD-2020-46797

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2020-46797

AFFECTED PRODUCTS

vendor:schneider electricmodel:apc easy ups online softwarescope:lteversion:2.0

Trust: 1.0

vendor:schneider electricmodel:apc easy ups on-line software sfapv9601scope:eqversion:v2.0

Trust: 0.8

vendor:schneider electricmodel:apc easy ups onlinescope: - version: -

Trust: 0.7

vendor:schneidermodel:electric apc easy ups on-linescope:lteversion:<=2.0

Trust: 0.6

sources: ZDI: ZDI-20-1006 // CNVD: CNVD-2020-46797 // JVNDB: JVNDB-2020-007431 // NVD: CVE-2020-7521

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-7521
value: CRITICAL

Trust: 1.0

IPA: JVNDB-2020-007431
value: CRITICAL

Trust: 0.8

ZDI: CVE-2020-7521
value: CRITICAL

Trust: 0.7

CNVD: CNVD-2020-46797
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202008-596
value: CRITICAL

Trust: 0.6

nvd@nist.gov: CVE-2020-7521
severity: HIGH
baseScore: 7.5
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

CNVD: CNVD-2020-46797
severity: HIGH
baseScore: 7.5
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2020-7521
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

IPA score: JVNDB-2020-007431
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

ZDI: CVE-2020-7521
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.0

Trust: 0.7

sources: ZDI: ZDI-20-1006 // CNVD: CNVD-2020-46797 // JVNDB: JVNDB-2020-007431 // CNNVD: CNNVD-202008-596 // NVD: CVE-2020-7521

PROBLEMTYPE DATA

problemtype:CWE-22

Trust: 1.0

sources: NVD: CVE-2020-7521

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202008-596

TYPE

path traversal

Trust: 0.6

sources: CNNVD: CNNVD-202008-596

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2020-007431

PATCH
title:Schneider Electric Security Notificationurl:https://download.schneider-electric.com/files?p_File_Name=SEVD-2020-224-04_APC_Easy_UPS_On-Line_Software_Security_Notification.pdf
Trust: 0.8
title:Schneider Electric has issued an update to correct this vulnerability.url:https://us-cert.cisa.gov/ics/advisories/icsa-20-224-02
Trust: 0.7
title:Patch for Schneider Electric APC Easy UPS On-Line FileUploadServlet path traversal vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/231085
Trust: 0.6
title:Schneider Electric APC Easy UPS On-Line Software Repair measures for path traversal vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=126634
Trust: 0.6
sources:
            
            
            ZDI: ZDI-20-1006 // 
            
            
            
            CNVD: CNVD-2020-46797 // 
            
            
            
            JVNDB: JVNDB-2020-007431 // 
            
            
            
            CNNVD: CNNVD-202008-596

EXTERNAL IDS
db:NVDid:CVE-2020-7521
Trust: 3.7
db:ICS CERTid:ICSA-20-224-02
Trust: 2.0
db:SCHNEIDERid:SEVD-2020-224-04
Trust: 1.6
db:ZDIid:ZDI-20-1006
Trust: 1.3
db:JVNid:JVNVU90099158
Trust: 0.8
db:JVNDBid:JVNDB-2020-007431
Trust: 0.8
db:ZDI_CANid:ZDI-CAN-10604
Trust: 0.7
db:CNVDid:CNVD-2020-46797
Trust: 0.6
db:AUSCERTid:ESB-2020.2761
Trust: 0.6
db:CNNVDid:CNNVD-202008-596
Trust: 0.6
sources:
            
            
            ZDI: ZDI-20-1006 // 
            
            
            
            CNVD: CNVD-2020-46797 // 
            
            
            
            JVNDB: JVNDB-2020-007431 // 
            
            
            
            CNNVD: CNNVD-202008-596 // 
            
            
            
            NVD: CVE-2020-7521

REFERENCES
url:https://us-cert.cisa.gov/ics/advisories/icsa-20-224-02
Trust: 2.7
url:https://www.se.com/ww/en/download/document/sevd-2020-224-04/
Trust: 1.6
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7521
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-7522
Trust: 0.8
url:http://jvn.jp/cert/jvnvu90099158
Trust: 0.8
url:https://www.zerodayinitiative.com/advisories/zdi-20-1006/
Trust: 0.6
url:https://www.auscert.org.au/bulletins/esb-2020.2761/
Trust: 0.6
url:https://nvd.nist.gov/vuln/detail/cve-2020-7521
Trust: 0.6
sources:
            
            
            ZDI: ZDI-20-1006 // 
            
            
            
            CNVD: CNVD-2020-46797 // 
            
            
            
            JVNDB: JVNDB-2020-007431 // 
            
            
            
            CNNVD: CNNVD-202008-596 // 
            
            
            
            NVD: CVE-2020-7521

CREDITS
rgod
Trust: 0.7
sources:
            
            
            ZDI: ZDI-20-1006

SOURCES
db:ZDIid:ZDI-20-1006
db:CNVDid:CNVD-2020-46797
db:JVNDBid:JVNDB-2020-007431
db:CNNVDid:CNNVD-202008-596
db:NVDid:CVE-2020-7521

LAST UPDATE DATE
2024-11-23T21:51:23.363000+00:00

SOURCES UPDATE DATE
db:ZDIid:ZDI-20-1006date:2020-08-17T00:00:00
db:CNVDid:CNVD-2020-46797date:2020-08-19T00:00:00
db:JVNDBid:JVNDB-2020-007431date:2020-08-13T00:00:00
db:CNNVDid:CNNVD-202008-596date:2021-01-05T00:00:00
db:NVDid:CVE-2020-7521date:2024-11-21T05:37:18.313

SOURCES RELEASE DATE
db:ZDIid:ZDI-20-1006date:2020-08-17T00:00:00
db:CNVDid:CNVD-2020-46797date:2020-08-19T00:00:00
db:JVNDBid:JVNDB-2020-007431date:2020-08-13T00:00:00
db:CNNVDid:CNNVD-202008-596date:2020-08-11T00:00:00
db:NVDid:CVE-2020-7521date:2020-08-31T17:15:12.233