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ID

VAR-201702-0678


CVE

CVE-2017-5159


TITLE

Phoenix Contact mGuard Security Bypass Vulnerability

Trust: 0.8

sources: IVD: 77f08733-19fb-41b7-927e-99312abe25cc // CNVD: CNVD-2017-01018

DESCRIPTION

An issue was discovered on Phoenix Contact mGuard devices that have been updated to Version 8.4.0. When updating an mGuard device to Version 8.4.0 via the update-upload facility, the update will succeed, but it will reset the password of the admin user to its default value. Phoenix Contact mGuard is a security device for unauthorized access and installation of Phoenix Contact's protection system. Phoenix Contact mGuard has a security bypass vulnerability. The attacker exploited the vulnerability to bypass the security restrictions and perform unauthorized operations to launch further attacks. This may aid in further attacks

Trust: 2.61

sources: NVD: CVE-2017-5159 // JVNDB: JVNDB-2017-001923 // CNVD: CNVD-2017-01018 // BID: 95648 // IVD: 77f08733-19fb-41b7-927e-99312abe25cc

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.8

sources: IVD: 77f08733-19fb-41b7-927e-99312abe25cc // CNVD: CNVD-2017-01018

AFFECTED PRODUCTS

vendor:phoenix contactmodel:mguardscope:eqversion:8.4.0

Trust: 1.4

vendor:phoenixcontactmodel:mguardscope:eqversion:8.4.0

Trust: 1.0

vendor:phoenixmodel:contact mguardscope:eqversion:8.4.0

Trust: 0.9

vendor:phoenixmodel:contact mguardscope:neversion:8.4.1

Trust: 0.3

vendor:mguardmodel: - scope:eqversion:8.4.0

Trust: 0.2

sources: IVD: 77f08733-19fb-41b7-927e-99312abe25cc // CNVD: CNVD-2017-01018 // BID: 95648 // JVNDB: JVNDB-2017-001923 // CNNVD: CNNVD-201701-693 // NVD: CVE-2017-5159

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2017-5159
value: CRITICAL

Trust: 1.0

NVD: CVE-2017-5159
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2017-01018
value: HIGH

Trust: 0.6

CNNVD: CNNVD-201701-693
value: CRITICAL

Trust: 0.6

IVD: 77f08733-19fb-41b7-927e-99312abe25cc
value: HIGH

Trust: 0.2

nvd@nist.gov: CVE-2017-5159
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: 1.8

CNVD: CNVD-2017-01018
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: 0.6

IVD: 77f08733-19fb-41b7-927e-99312abe25cc
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: 2.9 [IVD]

Trust: 0.2

nvd@nist.gov: CVE-2017-5159
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

NVD: CVE-2017-5159
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

sources: IVD: 77f08733-19fb-41b7-927e-99312abe25cc // CNVD: CNVD-2017-01018 // JVNDB: JVNDB-2017-001923 // CNNVD: CNNVD-201701-693 // NVD: CVE-2017-5159

PROBLEMTYPE DATA

problemtype:CWE-99

Trust: 1.8

sources: JVNDB: JVNDB-2017-001923 // NVD: CVE-2017-5159

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201701-693

TYPE

lack of information

Trust: 0.6

sources: CNNVD: CNNVD-201701-693

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2017-001923

PATCH
title:Top Pageurl:https://www.phoenixcontact.com/online/portal/de?1dmy&urile=wcm%3apath%3a/dede/web/home
Trust: 0.8
title:Phoenix Contact mGuard Security Bypass Vulnerability Patchurl:https://www.cnvd.org.cn/patchInfo/show/88702
Trust: 0.6
title:Phoenix Contact mGuard Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=67288
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2017-01018 // 
            
            
            
            JVNDB: JVNDB-2017-001923 // 
            
            
            
            CNNVD: CNNVD-201701-693

EXTERNAL IDS
db:NVDid:CVE-2017-5159
Trust: 3.5
db:ICS CERTid:ICSA-17-017-01
Trust: 3.3
db:BIDid:95648
Trust: 2.5
db:CNVDid:CNVD-2017-01018
Trust: 0.8
db:CNNVDid:CNNVD-201701-693
Trust: 0.8
db:JVNDBid:JVNDB-2017-001923
Trust: 0.8
db:IVDid:77F08733-19FB-41B7-927E-99312ABE25CC
Trust: 0.2
sources:
            
            
            IVD: 77f08733-19fb-41b7-927e-99312abe25cc // 
            
            
            
            CNVD: CNVD-2017-01018 // 
            
            
            
            BID: 95648 // 
            
            
            
            JVNDB: JVNDB-2017-001923 // 
            
            
            
            CNNVD: CNNVD-201701-693 // 
            
            
            
            NVD: CVE-2017-5159

REFERENCES
url:https://ics-cert.us-cert.gov/advisories/icsa-17-017-01
Trust: 3.3
url:http://www.securityfocus.com/bid/95648
Trust: 1.6
url:http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2017-5159
Trust: 0.8
url:http://web.nvd.nist.gov/view/vuln/detail?vulnid=cve-2017-5159
Trust: 0.8
url:https://www.phoenixcontact.com/online/portal/pc
Trust: 0.3
sources:
            
            
            CNVD: CNVD-2017-01018 // 
            
            
            
            BID: 95648 // 
            
            
            
            JVNDB: JVNDB-2017-001923 // 
            
            
            
            CNNVD: CNNVD-201701-693 // 
            
            
            
            NVD: CVE-2017-5159

CREDITS
The vendor reported this issue.
Trust: 0.3
sources:
            
            
            BID: 95648

SOURCES
db:IVDid:77f08733-19fb-41b7-927e-99312abe25cc
db:CNVDid:CNVD-2017-01018
db:BIDid:95648
db:JVNDBid:JVNDB-2017-001923
db:CNNVDid:CNNVD-201701-693
db:NVDid:CVE-2017-5159

LAST UPDATE DATE
2025-04-20T23:16:19.963000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2017-01018date:2017-02-07T00:00:00
db:BIDid:95648date:2017-01-23T07:11:00
db:JVNDBid:JVNDB-2017-001923date:2017-03-23T00:00:00
db:CNNVDid:CNNVD-201701-693date:2021-09-01T00:00:00
db:NVDid:CVE-2017-5159date:2025-04-20T01:37:25.860

SOURCES RELEASE DATE
db:IVDid:77f08733-19fb-41b7-927e-99312abe25ccdate:2017-02-07T00:00:00
db:CNVDid:CNVD-2017-01018date:2017-02-07T00:00:00
db:BIDid:95648date:2017-01-17T00:00:00
db:JVNDBid:JVNDB-2017-001923date:2017-03-23T00:00:00
db:CNNVDid:CNNVD-201701-693date:2017-01-20T00:00:00
db:NVDid:CVE-2017-5159date:2017-02-13T21:59:02.800