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ID

VAR-201811-0491


CVE

CVE-2018-3891


TITLE

Yi Home Camera Input validation vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2018-011709

DESCRIPTION

An exploitable firmware downgrade vulnerability exists in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted file can cause a logic flaw, resulting in a firmware downgrade. An attacker can insert an SD card to trigger this vulnerability. Yi Home Camera Contains an input validation vulnerability.Information may be tampered with. YiHomeCamera is a globally sold IoT home camera

Trust: 2.34

sources: NVD: CVE-2018-3891 // JVNDB: JVNDB-2018-011709 // CNVD: CNVD-2018-22809 // VULHUB: VHN-133922 // VULMON: CVE-2018-3891

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2018-22809

AFFECTED PRODUCTS

vendor:yitechnologymodel:yi home camerascope:eqversion:1.8.7.0d

Trust: 1.6

vendor:yimodel:home camerascope:eqversion:27us 1.8.7.0d

Trust: 0.8

vendor:yimodel:technology home camera 27us 1.8.7.0dscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2018-22809 // JVNDB: JVNDB-2018-011709 // CNNVD: CNNVD-201811-033 // NVD: CVE-2018-3891

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2018-3891
value: MEDIUM

Trust: 1.0

talos-cna@cisco.com: CVE-2018-3891
value: MEDIUM

Trust: 1.0

NVD: CVE-2018-3891
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2018-22809
value: HIGH

Trust: 0.6

CNNVD: CNNVD-201811-033
value: MEDIUM

Trust: 0.6

VULHUB: VHN-133922
value: LOW

Trust: 0.1

VULMON: CVE-2018-3891
value: LOW

Trust: 0.1

nvd@nist.gov: CVE-2018-3891
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:N/I:P/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2018-22809
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:N/C:P/I:C/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: COMPLETE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 8.5
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

VULHUB: VHN-133922
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:N/I:P/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2018-3891
baseSeverity: MEDIUM
baseScore: 4.6
vectorString: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
attackVector: PHYSICAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 0.9
impactScore: 3.6
version: 3.1

Trust: 1.0

talos-cna@cisco.com: CVE-2018-3891
baseSeverity: MEDIUM
baseScore: 5.7
vectorString: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
attackVector: PHYSICAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: HIGH
availabilityImpact: LOW
exploitabilityScore: 0.9
impactScore: 4.7
version: 3.0

Trust: 1.0

NVD: CVE-2018-3891
baseSeverity: MEDIUM
baseScore: 4.6
vectorString: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
attackVector: PHYSICAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2018-22809 // VULHUB: VHN-133922 // VULMON: CVE-2018-3891 // JVNDB: JVNDB-2018-011709 // CNNVD: CNNVD-201811-033 // NVD: CVE-2018-3891 // NVD: CVE-2018-3891

PROBLEMTYPE DATA

problemtype:NVD-CWE-Other

Trust: 1.0

problemtype:CWE-20

Trust: 0.9

sources: VULHUB: VHN-133922 // JVNDB: JVNDB-2018-011709 // NVD: CVE-2018-3891

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-201811-033

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-201811-033

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2018-011709

PATCH
title:Top Pageurl:https://www.yitechnology.com/
Trust: 0.8
title:Patch for YiHomeCamera Firmware Downgrade Vulnerability (CNVD-2018-22809)url:https://www.cnvd.org.cn/patchInfo/show/144203
Trust: 0.6
title:Yi Home Camera 27US Security vulnerabilitiesurl:http://123.124.177.30/web/xxk/bdxqById.tag?id=86577
Trust: 0.6
title: - url:https://github.com/Live-Hack-CVE/CVE-2018-3891 
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2018-22809 // 
            
            
            
            VULMON: CVE-2018-3891 // 
            
            
            
            JVNDB: JVNDB-2018-011709 // 
            
            
            
            CNNVD: CNNVD-201811-033

EXTERNAL IDS
db:NVDid:CVE-2018-3891
Trust: 3.2
db:TALOSid:TALOS-2018-0566
Trust: 2.6
db:JVNDBid:JVNDB-2018-011709
Trust: 0.8
db:CNNVDid:CNNVD-201811-033
Trust: 0.7
db:CNVDid:CNVD-2018-22809
Trust: 0.6
db:SEEBUGid:SSVID-97637
Trust: 0.1
db:VULHUBid:VHN-133922
Trust: 0.1
db:VULMONid:CVE-2018-3891
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2018-22809 // 
            
            
            
            VULHUB: VHN-133922 // 
            
            
            
            VULMON: CVE-2018-3891 // 
            
            
            
            JVNDB: JVNDB-2018-011709 // 
            
            
            
            CNNVD: CNNVD-201811-033 // 
            
            
            
            NVD: CVE-2018-3891

REFERENCES
url:https://www.talosintelligence.com/vulnerability_reports/talos-2018-0566
Trust: 2.0
url:https://nvd.nist.gov/vuln/detail/cve-2018-3891
Trust: 1.4
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-3891
Trust: 0.8
url:https://talosintelligence.com/vulnerability_reports/talos-2018-0566
Trust: 0.6
url:https://cwe.mitre.org/data/definitions/.html
Trust: 0.1
url:https://github.com/live-hack-cve/cve-2018-3891
Trust: 0.1
url:https://nvd.nist.gov
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2018-22809 // 
            
            
            
            VULHUB: VHN-133922 // 
            
            
            
            VULMON: CVE-2018-3891 // 
            
            
            
            JVNDB: JVNDB-2018-011709 // 
            
            
            
            CNNVD: CNNVD-201811-033 // 
            
            
            
            NVD: CVE-2018-3891

SOURCES
db:CNVDid:CNVD-2018-22809
db:VULHUBid:VHN-133922
db:VULMONid:CVE-2018-3891
db:JVNDBid:JVNDB-2018-011709
db:CNNVDid:CNNVD-201811-033
db:NVDid:CVE-2018-3891

LAST UPDATE DATE
2024-11-23T22:55:42.439000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2018-22809date:2018-11-09T00:00:00
db:VULHUBid:VHN-133922date:2023-02-02T00:00:00
db:VULMONid:CVE-2018-3891date:2023-02-02T00:00:00
db:JVNDBid:JVNDB-2018-011709date:2019-01-18T00:00:00
db:CNNVDid:CNNVD-201811-033date:2023-02-03T00:00:00
db:NVDid:CVE-2018-3891date:2024-11-21T04:06:14.860

SOURCES RELEASE DATE
db:CNVDid:CNVD-2018-22809date:2018-11-09T00:00:00
db:VULHUBid:VHN-133922date:2018-11-02T00:00:00
db:VULMONid:CVE-2018-3891date:2018-11-02T00:00:00
db:JVNDBid:JVNDB-2018-011709date:2019-01-18T00:00:00
db:CNNVDid:CNNVD-201811-033date:2018-11-05T00:00:00
db:NVDid:CVE-2018-3891date:2018-11-02T17:29:00.287