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ID

VAR-202102-0491


CVE

CVE-2021-20650


TITLE

ELECOM NCC-EWF100RMWH2 cross-site request forgery vulnerability

Trust: 1.2

sources: CNVD: CNVD-2021-14149 // CNNVD: CNNVD-202101-2389

DESCRIPTION

Cross-site request forgery (CSRF) vulnerability in ELECOM NCC-EWF100RMWH2 allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vector. As a result, the device settings may be altered and/or telnet daemon may be started. The following multiple vulnerabilities exist in multiple products provided by ELECOM CORPORATION. ・ Inadequate access restrictions (CWE-284) - CVE-2021-20643 -Script injection on the management screen (CWE-74) - CVE-2021-20644 ・ Retractable cross-site scripting (CWE-79) - CVE-2021-20645 ・ Cross-site request forgery (CWE-352) - CVE-2021-20646, CVE-2021-20647, CVE-2021-20650 ・ OS Command injection (CWE-78) - CVE-2021-20648 -Insufficient verification of server certificate (CWE-295) - CVE-2021-20649 ・ UPnP Via OS Command injection (CWE-78) - CVE-2014-8361 CVE-2021-20643 This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Institute of Information Security Yuasa Laboratory Nagakawa ( Ishibashi ) Australia Mr CVE-2021-20644 This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Sato Rei Mr CVE-2021-20645, CVE-2021-20646 These vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Mitsui Bussan Secure Direction Co., Ltd. Tetsuyuki Ogawa Mr CVE-2021-20647, CVE-2021-20648, CVE-2021-20649 These vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Cyber Defense Institute, Inc. Satoru Nagaoka Mr CVE-2021-20650 This vulnerability information is based on the Information Security Early Warning Partnership. IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Hiroshi Watanabe Mr CVE-2014-8361 The following person indicates that the product is vulnerable to IPA Report to JPCERT/CC Coordinated with the developer. Reporter : Cyber Defense Institute, Inc. Satoru Nagaoka Mr., National Institute of Information and Communications Technology Makita Daisuke Mr., National Institute of Information and Communications Technology Woods Yoshiki MrThe expected impact depends on each vulnerability, but it may be affected as follows. -The management password of the product is changed by processing the request crafted by a remote third party. - CVE-2021-20643 ・ Crafted SSID Is displayed on the management screen, and any script is executed on the user's web browser. - CVE-2021-20644 -Any script is executed on the web browser of the user who is logged in to the product. - CVE-2021-20645 -When a user logged in to the management screen of the product accesses a specially crafted page, an arbitrary request is executed, and as a result, the settings of the product are changed unintentionally. telnet Daemon is started - CVE-2021-20646, CVE-2021-20647, CVE-2021-20650 ・ Any third party who can access the product OS Command is executed - CVE-2021-20648 ・ Man-in-the-middle attack (man-in-the-middle attack) The communication response has been tampered with, resulting in arbitrary in the product. OS Command is executed - CVE-2021-20649 ・ With the product UPnP Is valid, any by a third party who has access to the product OS Command is executed - CVE-2014-8361. ELECOM NCC-EWF100RMWH2 is a wireless access device. Attackers can construct malicious URIs to induce requests and use this vulnerability to perform malicious operations in the context of the target user

Trust: 2.16

sources: NVD: CVE-2021-20650 // JVNDB: JVNDB-2021-000008 // CNVD: CNVD-2021-14149

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-14149

AFFECTED PRODUCTS

vendor:elecommodel:ncc-ewf100rmwh2scope:eqversion: -

Trust: 1.0

vendor:elecommodel:ld-ps/u1scope:eqversion:(cve-2021-20643)

Trust: 0.8

vendor:elecommodel:ncc-ewf100rmwh2scope:eqversion:(cve-2021-20650)

Trust: 0.8

vendor:elecommodel:wrc-1467ghbk-ascope:eqversion:(cve-2021-20644)

Trust: 0.8

vendor:elecommodel:wrc-300febkscope:eqversion:(cve-2014-8361)

Trust: 0.8

vendor:elecommodel:wrc-300febk-ascope:eqversion:(cve-2021-20645, cve-2021-20646)

Trust: 0.8

vendor:elecommodel:wrc-300febk-sscope:eqversion:(cve-2021-20647, cve-2021-20648, cve-2021-20649, cve-2014-8361)

Trust: 0.8

vendor:elecommodel:wrc-f300nfscope:eqversion:(cve-2014-8361)

Trust: 0.8

vendor:elecommodel:ncc-ewf100rmwh2scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2021-14149 // JVNDB: JVNDB-2021-000008 // NVD: CVE-2021-20650

CVSS

SEVERITY

CVSSV2

CVSSV3

IPA: JVNDB-2021-000008
value: MEDIUM

Trust: 4.8

nvd@nist.gov: CVE-2021-20650
value: MEDIUM

Trust: 1.0

IPA: JVNDB-2021-000008
value: HIGH

Trust: 0.8

CNVD: CNVD-2021-14149
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202101-2389
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2021-20650
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

IPA: JVNDB-2021-000008
severity: MEDIUM
baseScore: 5.8
vectorString: AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector: ADJACENT NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: LOW
baseScore: 3.3
vectorString: AV:A/AC:L/AU:N/C:N/I:P/A:N
accessVector: ADJACENT NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: LOW
baseScore: 3.5
vectorString: AV:N/AC:M/AU:S/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: SINGLE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: LOW
baseScore: 2.6
vectorString: AV:N/AC:H/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: HIGH
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: MEDIUM
baseScore: 5.2
vectorString: AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector: ADJACENT NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

IPA: JVNDB-2021-000008
severity: MEDIUM
baseScore: 4.0
vectorString: AV:N/AC:H/AU:N/C:P/I:P/A:N
accessVector: NETWORK
accessComplexity: HIGH
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

CNVD: CNVD-2021-14149
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:N/I:P/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-20650
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 2.8
impactScore: 3.6
version: 3.1

Trust: 1.0

IPA: JVNDB-2021-000008
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT 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

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 5.3
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 5.2
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 5.4
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 6.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

IPA: JVNDB-2021-000008
baseSeverity: MEDIUM
baseScore: 4.8
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-14149 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // JVNDB: JVNDB-2021-000008 // CNNVD: CNNVD-202101-2389 // NVD: CVE-2021-20650

PROBLEMTYPE DATA

problemtype:CWE-352

Trust: 1.8

problemtype:CWE-78

Trust: 0.8

problemtype:CWE-Other

Trust: 0.8

problemtype:CWE-79

Trust: 0.8

problemtype:CWE-264

Trust: 0.8

sources: JVNDB: JVNDB-2021-000008 // NVD: CVE-2021-20650

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202101-2389

TYPE

cross-site request forgery

Trust: 0.6

sources: CNNVD: CNNVD-202101-2389

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2021-000008

PATCH
title:無線LANルーターなどネットワーク製品の一部における脆弱性に関してurl:https://www.elecom.co.jp/news/security/20210126-01/
Trust: 0.8
title:Patch for ELECOM NCC-EWF100RMWH2 cross-site request forgery vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/250591
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2021-14149 // 
            
            
            
            JVNDB: JVNDB-2021-000008

EXTERNAL IDS
db:NVDid:CVE-2021-20650
Trust: 3.0
db:JVNid:JVN47580234
Trust: 2.4
db:JVNDBid:JVNDB-2021-000008
Trust: 1.4
db:CNVDid:CNVD-2021-14149
Trust: 0.6
db:CNNVDid:CNNVD-202101-2389
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2021-14149 // 
            
            
            
            JVNDB: JVNDB-2021-000008 // 
            
            
            
            CNNVD: CNNVD-202101-2389 // 
            
            
            
            NVD: CVE-2021-20650

REFERENCES
url:https://www.elecom.co.jp/news/security/20210126-01/
Trust: 2.2
url:https://jvn.jp/en/jp/jvn47580234/index.html
Trust: 1.6
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20649
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20650
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20643
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2014-8361
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20644
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20645
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20646
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20647
Trust: 0.8
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-20648
Trust: 0.8
url:https://jvn.jp/jp/jvn47580234/index.html
Trust: 0.8
url:https://nvd.nist.gov/vuln/detail/cve-2021-20650
Trust: 0.6
url:https://jvndb.jvn.jp/en/contents/2021/jvndb-2021-000008.html
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2021-14149 // 
            
            
            
            JVNDB: JVNDB-2021-000008 // 
            
            
            
            CNNVD: CNNVD-202101-2389 // 
            
            
            
            NVD: CVE-2021-20650

SOURCES
db:CNVDid:CNVD-2021-14149
db:JVNDBid:JVNDB-2021-000008
db:CNNVDid:CNNVD-202101-2389
db:NVDid:CVE-2021-20650

LAST UPDATE DATE
2024-08-14T13:54:14.415000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2021-14149date:2021-03-03T00:00:00
db:JVNDBid:JVNDB-2021-000008date:2021-01-26T03:12:23
db:CNNVDid:CNNVD-202101-2389date:2021-02-19T00:00:00
db:NVDid:CVE-2021-20650date:2021-02-18T18:37:52.897

SOURCES RELEASE DATE
db:CNVDid:CNVD-2021-14149date:2021-03-03T00:00:00
db:JVNDBid:JVNDB-2021-000008date:2021-01-26T03:12:23
db:CNNVDid:CNNVD-202101-2389date:2021-01-26T00:00:00
db:NVDid:CVE-2021-20650date:2021-02-12T07:15:15.450