Details of VAR-202110-0399

ID

VAR-202110-0399

CVE

CVE-2021-21743

TITLE

ZTE MF971R Injection vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-013972

DESCRIPTION

ZTE MF971R product has a CRLF injection vulnerability. An attacker could exploit the vulnerability to modify the HTTP response header information through a specially crafted HTTP request. ZTE MF971R is a Cat 6 LTE mobile Wi-Fi router with download speeds up to 300mbps and upload speeds up to 50mbps

Trust: 2.25

sources: NVD: CVE-2021-21743 // JVNDB: JVNDB-2021-013972 // CNVD: CNVD-2021-92819 // VULMON: CVE-2021-21743

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-92819

AFFECTED PRODUCTS

vendor:	zte	model:	mf971r	scope:	eq	version:	sv1.0.0b05	Trust: 1.0
vendor:	zte	model:	mf971r	scope:	eq	version:	1v1.0.0b06	Trust: 1.0
vendor:	zte	model:	mf971r	scope:	eq	version:	2v1.0.0b03	Trust: 1.0
vendor:	zte	model:	mf971r	scope:	eq	version:	v1.0.0b05	Trust: 1.0
vendor:	zte	model:	mf971r	scope:	eq	version:	s2v1.0.0b03	Trust: 1.0
vendor:	zte	model:	mf971r	scope:	eq	version:	-	Trust: 0.8
vendor:	zte	model:	mf971r	scope:	-	version:	-	Trust: 0.8
vendor:	zte	model:	mf971r	scope:	eq	version:	mf971r firmware	Trust: 0.8
vendor:	zte	model:	mf971r bd zte mf971rv1.0.0b05	scope:	-	version:	-	Trust: 0.6
vendor:	zte	model:	mf971r bd plkplmf971r1v1.0.0b06	scope:	-	version:	-	Trust: 0.6
vendor:	zte	model:	mf971r bd mf971r2v1.0.0b03	scope:	-	version:	-	Trust: 0.6
vendor:	zte	model:	mf971r bd zte mf971rs2v1.0.0b03	scope:	-	version:	-	Trust: 0.6
vendor:	zte	model:	mf971r bd zte mf971rsv1.0.0b05	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-92819 // JVNDB: JVNDB-2021-013972 // NVD: CVE-2021-21743

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-21743
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2021-21743
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2021-92819
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202110-1262
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2021-21743
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-21743
severity:	MEDIUM
baseScore:	4.3
vectorString:	AV:N/AC:M/AU:N/C:N/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2021-92819
severity:	MEDIUM
baseScore:	4.3
vectorString:	AV:N/AC:M/AU:N/C:N/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-21743
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	2.8
impactScore:	1.4
version:	3.1
Trust: 1.0
NVD:	CVE-2021-21743
baseSeverity:	MEDIUM
baseScore:	4.3
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	REQUIRED
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-92819 // VULMON: CVE-2021-21743 // JVNDB: JVNDB-2021-013972 // CNNVD: CNNVD-202110-1262 // NVD: CVE-2021-21743

PROBLEMTYPE DATA

problemtype:	CWE-74	Trust: 1.0
problemtype:	injection (CWE-74) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-013972 // NVD: CVE-2021-21743

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202110-1262

TYPE

injection

Trust: 0.6

sources: CNNVD: CNNVD-202110-1262

PATCH

title:	Multiple Vulnerabilities in a ZTE Mobile Internet Product	url:	https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1019764	Trust: 0.8
title:	Patch for ZTE MF971R CRLF injection vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/301766	Trust: 0.6
title:	ZTE MF971R LTE router Repair measures for injecting vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=166155	Trust: 0.6

sources: CNVD: CNVD-2021-92819 // JVNDB: JVNDB-2021-013972 // CNNVD: CNNVD-202110-1262

EXTERNAL IDS

db:	NVD	id:	CVE-2021-21743	Trust: 3.9
db:	ZTE	id:	1019764	Trust: 1.7
db:	JVNDB	id:	JVNDB-2021-013972	Trust: 0.8
db:	CNVD	id:	CNVD-2021-92819	Trust: 0.6
db:	CS-HELP	id:	SB2021101910	Trust: 0.6
db:	TALOS	id:	TALOS-2021-1313	Trust: 0.6
db:	CNNVD	id:	CNNVD-202110-1262	Trust: 0.6
db:	VULMON	id:	CVE-2021-21743	Trust: 0.1

sources: CNVD: CNVD-2021-92819 // VULMON: CVE-2021-21743 // JVNDB: JVNDB-2021-013972 // CNNVD: CNNVD-202110-1262 // NVD: CVE-2021-21743

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2021-21743	Trust: 2.0
url:	https://support.zte.com.cn/support/news/loopholeinfodetail.aspx?newsid=1019764	Trust: 1.7
url:	https://www.cybersecurity-help.cz/vdb/sb2021101910	Trust: 0.6
url:	https://talosintelligence.com/vulnerability_reports/talos-2021-1313	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/74.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2021-92819 // VULMON: CVE-2021-21743 // JVNDB: JVNDB-2021-013972 // CNNVD: CNNVD-202110-1262 // NVD: CVE-2021-21743

CREDITS

Discovered by Marcin ’Icewall’ Noga of Cisco Talos.

Trust: 0.6

sources: CNNVD: CNNVD-202110-1262

SOURCES

db:	CNVD	id:	CNVD-2021-92819
db:	VULMON	id:	CVE-2021-21743
db:	JVNDB	id:	JVNDB-2021-013972
db:	CNNVD	id:	CNNVD-202110-1262
db:	NVD	id:	CVE-2021-21743

LAST UPDATE DATE

2024-08-14T13:43:19.090000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-92819	date:	2021-12-01T00:00:00
db:	VULMON	id:	CVE-2021-21743	date:	2021-10-25T00:00:00
db:	JVNDB	id:	JVNDB-2021-013972	date:	2022-09-30T05:49:00
db:	CNNVD	id:	CNNVD-202110-1262	date:	2021-10-27T00:00:00
db:	NVD	id:	CVE-2021-21743	date:	2021-10-25T16:06:55.930

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-92819	date:	2021-12-01T00:00:00
db:	VULMON	id:	CVE-2021-21743	date:	2021-10-20T00:00:00
db:	JVNDB	id:	JVNDB-2021-013972	date:	2022-09-30T00:00:00
db:	CNNVD	id:	CNNVD-202110-1262	date:	2021-10-18T00:00:00
db:	NVD	id:	CVE-2021-21743	date:	2021-10-20T16:15:08.103