Sign-up

ID

VAR-201601-0059


CVE

CVE-2015-7923


TITLE

Westermo Industrial switches Hardcoded Certificate Vulnerability

Trust: 0.8

sources: IVD: 62aca832-2351-11e6-abef-000c29c66e3d // CNVD: CNVD-2016-00806

DESCRIPTION

Westermo WeOS before 4.19.0 uses the same SSL private key across different customers' installations, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by leveraging knowledge of a key. WestermoIndustrialSwitches is an industrial Ethernet switch from Westermo, Sweden. A security vulnerability exists in WestermoIndustrialswitches that allows remote attackers to exploit the vulnerability to perform man-in-the-middle attacks without unauthorized access to the device. Westermo Industrial switches are prone to a hard-coded certificate key vulnerability. Successful exploits will allow attackers to read and modify traffic that is intercepted and decrypted. Versions prior to Note- WeOS 4.19.0 are vulnerable

Trust: 2.61

sources: NVD: CVE-2015-7923 // JVNDB: JVNDB-2015-006917 // CNVD: CNVD-2016-00806 // BID: 82155 // IVD: 62aca832-2351-11e6-abef-000c29c66e3d

IOT TAXONOMY

category:['ICS', 'Network device']sub_category: -

Trust: 0.6

category:['ICS']sub_category: -

Trust: 0.2

sources: IVD: 62aca832-2351-11e6-abef-000c29c66e3d // CNVD: CNVD-2016-00806

AFFECTED PRODUCTS

vendor:westermomodel:weosscope:eqversion:4.18.0

Trust: 1.6

vendor:westermomodel:weosscope:ltversion:4.19.0

Trust: 0.8

vendor:westermomodel:weosscope:eqversion:4.19.0

Trust: 0.6

vendor:westermomodel:weosscope:eqversion:0

Trust: 0.3

vendor:westermomodel:weosscope:neversion:4.19.0

Trust: 0.3

vendor:weosmodel: - scope:eqversion:4.18.0

Trust: 0.2

sources: IVD: 62aca832-2351-11e6-abef-000c29c66e3d // CNVD: CNVD-2016-00806 // BID: 82155 // JVNDB: JVNDB-2015-006917 // CNNVD: CNNVD-201601-658 // NVD: CVE-2015-7923

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2015-7923
value: CRITICAL

Trust: 1.0

NVD: CVE-2015-7923
value: HIGH

Trust: 0.8

CNVD: CNVD-2016-00806
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-201601-658
value: CRITICAL

Trust: 0.6

IVD: 62aca832-2351-11e6-abef-000c29c66e3d
value: CRITICAL

Trust: 0.2

nvd@nist.gov: CVE-2015-7923
severity: HIGH
baseScore: 9.3
vectorString: AV:N/AC:M/AU:N/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2016-00806
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: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

IVD: 62aca832-2351-11e6-abef-000c29c66e3d
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: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.9 [IVD]

Trust: 0.2

nvd@nist.gov: CVE-2015-7923
baseSeverity: CRITICAL
baseScore: 9.0
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.2
impactScore: 6.0
version: 3.0

Trust: 1.0

sources: IVD: 62aca832-2351-11e6-abef-000c29c66e3d // CNVD: CNVD-2016-00806 // JVNDB: JVNDB-2015-006917 // CNNVD: CNNVD-201601-658 // NVD: CVE-2015-7923

PROBLEMTYPE DATA

problemtype:CWE-310

Trust: 1.8

sources: JVNDB: JVNDB-2015-006917 // NVD: CVE-2015-7923

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201601-658

TYPE

encryption problem

Trust: 0.6

sources: CNNVD: CNNVD-201601-658

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2015-006917

PATCH
title:WeOSurl:http://www.westermo.com/web/web_en_idc_com.nsf/alldocuments/8738BB7415187507C1257E3000408C90
Trust: 0.8
title:WestermoIndustrialswitches hardcoded certificate vulnerability patchurl:https://www.cnvd.org.cn/patchInfo/show/71098
Trust: 0.6
title:Westermo WeOS Fixes for permission permissions and access control vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=59967
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2016-00806 // 
            
            
            
            JVNDB: JVNDB-2015-006917 // 
            
            
            
            CNNVD: CNNVD-201601-658

EXTERNAL IDS
db:NVDid:CVE-2015-7923
Trust: 3.5
db:ICS CERTid:ICSA-16-028-01
Trust: 3.3
db:CNVDid:CNVD-2016-00806
Trust: 0.8
db:CNNVDid:CNNVD-201601-658
Trust: 0.8
db:JVNDBid:JVNDB-2015-006917
Trust: 0.8
db:BIDid:82155
Trust: 0.3
db:IVDid:62ACA832-2351-11E6-ABEF-000C29C66E3D
Trust: 0.2
sources:
            
            
            IVD: 62aca832-2351-11e6-abef-000c29c66e3d // 
            
            
            
            CNVD: CNVD-2016-00806 // 
            
            
            
            BID: 82155 // 
            
            
            
            JVNDB: JVNDB-2015-006917 // 
            
            
            
            CNNVD: CNNVD-201601-658 // 
            
            
            
            NVD: CVE-2015-7923

REFERENCES
url:https://ics-cert.us-cert.gov/advisories/icsa-16-028-01
Trust: 3.3
url:http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2015-7923
Trust: 0.8
url:http://web.nvd.nist.gov/view/vuln/detail?vulnid=cve-2015-7923
Trust: 0.8
url:http://www.westermo.com/
Trust: 0.3
sources:
            
            
            CNVD: CNVD-2016-00806 // 
            
            
            
            BID: 82155 // 
            
            
            
            JVNDB: JVNDB-2015-006917 // 
            
            
            
            CNNVD: CNNVD-201601-658 // 
            
            
            
            NVD: CVE-2015-7923

CREDITS
Neil Smith.
Trust: 0.3
sources:
            
            
            BID: 82155

SOURCES
db:IVDid:62aca832-2351-11e6-abef-000c29c66e3d
db:CNVDid:CNVD-2016-00806
db:BIDid:82155
db:JVNDBid:JVNDB-2015-006917
db:CNNVDid:CNNVD-201601-658
db:NVDid:CVE-2015-7923

LAST UPDATE DATE
2025-04-12T23:33:57.621000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2016-00806date:2016-02-03T00:00:00
db:BIDid:82155date:2016-01-28T00:00:00
db:JVNDBid:JVNDB-2015-006917date:2016-03-15T00:00:00
db:CNNVDid:CNNVD-201601-658date:2016-02-01T00:00:00
db:NVDid:CVE-2015-7923date:2025-04-12T10:46:40.837

SOURCES RELEASE DATE
db:IVDid:62aca832-2351-11e6-abef-000c29c66e3ddate:2016-02-03T00:00:00
db:CNVDid:CNVD-2016-00806date:2016-02-03T00:00:00
db:BIDid:82155date:2016-01-28T00:00:00
db:JVNDBid:JVNDB-2015-006917date:2016-03-01T00:00:00
db:CNNVDid:CNNVD-201601-658date:2016-01-29T00:00:00
db:NVDid:CVE-2015-7923date:2016-01-30T12:59:00.133