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ID

VAR-201904-0560


CVE

CVE-2018-18489


TITLE

TP-LINK WR840N Vulnerability related to input validation in firmware devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-015267

DESCRIPTION

The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attackers to cause a denial of service (HTTP service termination) by modifying the packet size to be higher than the UI limit of 1472. TP-LINK WR840N A firmware device contains a vulnerability related to input validation.Service operation interruption (DoS) There is a possibility of being put into a state. TP-Link WR840N is a wireless router of China Pulian (TP-Link). There is a security vulnerability in the diagnostic function of TP-LINK WR840N v2 using 3.16.9 Build 150701 Rel.51516n firmware

Trust: 1.71

sources: NVD: CVE-2018-18489 // JVNDB: JVNDB-2018-015267 // VULHUB: VHN-129053

AFFECTED PRODUCTS

vendor:tp linkmodel:wr840nscope:eqversion:3.16.9

Trust: 1.0

vendor:tp linkmodel:tl-wr840nscope:eqversion:3.16.9

Trust: 0.8

sources: JVNDB: JVNDB-2018-015267 // NVD: CVE-2018-18489

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2018-18489
value: MEDIUM

Trust: 1.0

NVD: CVE-2018-18489
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-201904-817
value: MEDIUM

Trust: 0.6

VULHUB: VHN-129053
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2018-18489
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:L/AU:S/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-129053
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:L/AU:S/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2018-18489
baseSeverity: MEDIUM
baseScore: 4.9
vectorString: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 1.2
impactScore: 3.6
version: 3.0

Trust: 1.8

sources: VULHUB: VHN-129053 // JVNDB: JVNDB-2018-015267 // CNNVD: CNNVD-201904-817 // NVD: CVE-2018-18489

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:CWE-20

Trust: 0.9

sources: VULHUB: VHN-129053 // JVNDB: JVNDB-2018-015267 // NVD: CVE-2018-18489

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201904-817

TYPE

input validation error

Trust: 0.6

sources: CNNVD: CNNVD-201904-817

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2018-015267

PATCH
title:TL-WR840N V2url:https://www.tp-link.com/us/support/download/tl-wr840n/v2/#Firmware
Trust: 0.8
sources:
            
            
            JVNDB: JVNDB-2018-015267

EXTERNAL IDS
db:NVDid:CVE-2018-18489
Trust: 2.5
db:JVNDBid:JVNDB-2018-015267
Trust: 0.8
db:CNNVDid:CNNVD-201904-817
Trust: 0.7
db:VULHUBid:VHN-129053
Trust: 0.1
sources:
            
            
            VULHUB: VHN-129053 // 
            
            
            
            JVNDB: JVNDB-2018-015267 // 
            
            
            
            CNNVD: CNNVD-201904-817 // 
            
            
            
            NVD: CVE-2018-18489

REFERENCES
url:https://youtu.be/vgneywr9mgy
Trust: 1.7
url:https://nvd.nist.gov/vuln/detail/cve-2018-18489
Trust: 1.4
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-18489
Trust: 0.8
url:https://www.youtube.com/watch?v=vgneywr9mgy&feature=youtu.be
Trust: 0.8
sources:
            
            
            VULHUB: VHN-129053 // 
            
            
            
            JVNDB: JVNDB-2018-015267 // 
            
            
            
            CNNVD: CNNVD-201904-817 // 
            
            
            
            NVD: CVE-2018-18489

SOURCES
db:VULHUBid:VHN-129053
db:JVNDBid:JVNDB-2018-015267
db:CNNVDid:CNNVD-201904-817
db:NVDid:CVE-2018-18489

LAST UPDATE DATE
2024-11-23T22:00:00.204000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-129053date:2020-08-24T00:00:00
db:JVNDBid:JVNDB-2018-015267date:2019-05-17T00:00:00
db:CNNVDid:CNNVD-201904-817date:2020-08-25T00:00:00
db:NVDid:CVE-2018-18489date:2024-11-21T03:56:02.167

SOURCES RELEASE DATE
db:VULHUBid:VHN-129053date:2019-04-16T00:00:00
db:JVNDBid:JVNDB-2018-015267date:2019-05-17T00:00:00
db:CNNVDid:CNNVD-201904-817date:2019-04-16T00:00:00
db:NVDid:CVE-2018-18489date:2019-04-16T19:29:00.253