Details of VAR-202004-2176

ID

VAR-202004-2176

CVE

CVE-2020-8423

TITLE

TP-Link TL-WR841N V10 Classic buffer overflow vulnerability in device

Trust: 0.8

sources: JVNDB: JVNDB-2020-003724

DESCRIPTION

A buffer overflow in the httpd daemon on TP-Link TL-WR841N V10 (firmware version 3.16.9) devices allows an authenticated remote attacker to execute arbitrary code via a GET request to the page for the configuration of the Wi-Fi network. TP-Link TL-WR841N V10 A classic buffer overflow vulnerability exists on the device.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. TP-Link TL-WR841N is a wireless router of China TP-Link company. Remote attackers can use this vulnerability to execute arbitrary code with the help of GET requests

Trust: 2.25

sources: NVD: CVE-2020-8423 // JVNDB: JVNDB-2020-003724 // CNVD: CNVD-2020-23185 // VULMON: CVE-2020-8423

IOT TAXONOMY

category:	['Network device']	sub_category:	-	Trust: 0.6
category:	['network device']	sub_category:	router	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2020-23185

AFFECTED PRODUCTS

vendor:	tp link	model:	tl-wr841n	scope:	eq	version:	3.16.9	Trust: 1.8
vendor:	tp link	model:	tl-wr841n	scope:	eq	version:	v103.16.9	Trust: 0.6

sources: CNVD: CNVD-2020-23185 // JVNDB: JVNDB-2020-003724 // NVD: CVE-2020-8423

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-8423
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2020-003724
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-23185
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202004-081
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2020-8423
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2020-8423
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
NVD:	JVNDB-2020-003724
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2020-23185
severity:	HIGH
baseScore:	8.3
vectorString:	AV:N/AC:L/AU:M/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	MULTIPLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.4
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2020-8423
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.2
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	JVNDB-2020-003724
baseSeverity:	HIGH
baseScore:	7.2
vectorString:	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	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

sources: CNVD: CNVD-2020-23185 // VULMON: CVE-2020-8423 // JVNDB: JVNDB-2020-003724 // CNNVD: CNNVD-202004-081 // NVD: CVE-2020-8423

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2020-003724 // NVD: CVE-2020-8423

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202004-081

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-081

CONFIGURATIONS

sources: JVNDB: JVNDB-2020-003724

PATCH

title:	Security Advisory	url:	https://www.tp-link.com/us/press/security-advisory/	Trust: 0.8
title:	Patch for TP-Link TL-WR841N buffer overflow vulnerability (CNVD-2020-23185)	url:	https://www.cnvd.org.cn/patchInfo/show/214233	Trust: 0.6
title:	TP-Link TL-WR841N Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=113210	Trust: 0.6

sources: CNVD: CNVD-2020-23185 // JVNDB: JVNDB-2020-003724 // CNNVD: CNNVD-202004-081

EXTERNAL IDS

db:	NVD	id:	CVE-2020-8423	Trust: 3.2
db:	JVNDB	id:	JVNDB-2020-003724	Trust: 0.8
db:	CNVD	id:	CNVD-2020-23185	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-081	Trust: 0.6
db:	OTHER	id:	NONE	Trust: 0.1
db:	VULMON	id:	CVE-2020-8423	Trust: 0.1

sources: OTHER: None // CNVD: CNVD-2020-23185 // VULMON: CVE-2020-8423 // JVNDB: JVNDB-2020-003724 // CNNVD: CNNVD-202004-081 // NVD: CVE-2020-8423

REFERENCES

url:	https://ktln2.org/2020/03/29/exploiting-mips-router/	Trust: 2.5
url:	https://www.tp-link.com/us/security	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2020-8423	Trust: 1.4
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2020-8423	Trust: 0.8
url:	https://ieeexplore.ieee.org/abstract/document/10769424	Trust: 0.1
url:	https://cwe.mitre.org/data/definitions/120.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: OTHER: None // VULMON: CVE-2020-8423 // JVNDB: JVNDB-2020-003724 // CNNVD: CNNVD-202004-081 // NVD: CVE-2020-8423

SOURCES

db:	OTHER	id:	-
db:	CNVD	id:	CNVD-2020-23185
db:	VULMON	id:	CVE-2020-8423
db:	JVNDB	id:	JVNDB-2020-003724
db:	CNNVD	id:	CNNVD-202004-081
db:	NVD	id:	CVE-2020-8423

LAST UPDATE DATE

2025-01-30T20:20:48.136000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-23185	date:	2020-04-16T00:00:00
db:	VULMON	id:	CVE-2020-8423	date:	2020-04-06T00:00:00
db:	JVNDB	id:	JVNDB-2020-003724	date:	2020-04-23T00:00:00
db:	CNNVD	id:	CNNVD-202004-081	date:	2020-04-07T00:00:00
db:	NVD	id:	CVE-2020-8423	date:	2024-11-21T05:38:49.267

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-23185	date:	2020-04-16T00:00:00
db:	VULMON	id:	CVE-2020-8423	date:	2020-04-02T00:00:00
db:	JVNDB	id:	JVNDB-2020-003724	date:	2020-04-23T00:00:00
db:	CNNVD	id:	CNNVD-202004-081	date:	2020-04-02T00:00:00
db:	NVD	id:	CVE-2020-8423	date:	2020-04-02T17:15:14.490