Details of VAR-202112-0705

ID

VAR-202112-0705

CVE

CVE-2021-20143

TITLE

Gryphon Tower In the router OS Command injection vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-016110

DESCRIPTION

An unauthenticated command injection vulnerability exists in the parameters of operation 48 in the controller_server service on Gryphon Tower routers. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the controller_server service on port 9999. (DoS) It may be in a state. Gryphon Tower is a wireless router from Gryphon. The package executes commands on the device as root

Trust: 2.16

sources: NVD: CVE-2021-20143 // JVNDB: JVNDB-2021-016110 // CNVD: CNVD-2021-100348

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-100348

AFFECTED PRODUCTS

vendor:	gryphon	model:	tower	scope:	-	version:	-	Trust: 1.4
vendor:	gryphonconnect	model:	gryphon tower	scope:	lte	version:	04.0004.12	Trust: 1.0
vendor:	gryphon	model:	tower	scope:	eq	version:	-	Trust: 0.8
vendor:	gryphon	model:	tower	scope:	eq	version:	gryphon tower firmware	Trust: 0.8

sources: CNVD: CNVD-2021-100348 // JVNDB: JVNDB-2021-016110 // NVD: CVE-2021-20143

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-20143
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-20143
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-100348
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202112-744
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-20143
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2021-100348
severity:	HIGH
baseScore:	8.3
vectorString:	AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	6.5
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-20143
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	CVE-2021-20143
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT 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: CNVD: CNVD-2021-100348 // JVNDB: JVNDB-2021-016110 // CNNVD: CNNVD-202112-744 // NVD: CVE-2021-20143

PROBLEMTYPE DATA

problemtype:	CWE-78	Trust: 1.0
problemtype:	OS Command injection (CWE-78) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-016110 // NVD: CVE-2021-20143

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202112-744

TYPE

operating system commend injection

Trust: 0.6

sources: CNNVD: CNNVD-202112-744

PATCH

title:	Top Page	url:	https://gryphonconnect.com/	Trust: 0.8
title:	Patch for Gryphon Tower command injection vulnerability (CNVD-2021-100348)	url:	https://www.cnvd.org.cn/patchInfo/show/306081	Trust: 0.6
title:	Gryphon Tower Fixes for operating system command injection vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=174236	Trust: 0.6

sources: CNVD: CNVD-2021-100348 // JVNDB: JVNDB-2021-016110 // CNNVD: CNNVD-202112-744

EXTERNAL IDS

db:	NVD	id:	CVE-2021-20143	Trust: 3.8
db:	TENABLE	id:	TRA-2021-51	Trust: 3.0
db:	JVNDB	id:	JVNDB-2021-016110	Trust: 0.8
db:	CNVD	id:	CNVD-2021-100348	Trust: 0.6
db:	CNNVD	id:	CNNVD-202112-744	Trust: 0.6

sources: CNVD: CNVD-2021-100348 // JVNDB: JVNDB-2021-016110 // CNNVD: CNNVD-202112-744 // NVD: CVE-2021-20143

REFERENCES

url:	https://www.tenable.com/security/research/tra-2021-51	Trust: 3.0
url:	https://nvd.nist.gov/vuln/detail/cve-2021-20143	Trust: 1.4

sources: CNVD: CNVD-2021-100348 // JVNDB: JVNDB-2021-016110 // CNNVD: CNNVD-202112-744 // NVD: CVE-2021-20143

SOURCES

db:	CNVD	id:	CNVD-2021-100348
db:	JVNDB	id:	JVNDB-2021-016110
db:	CNNVD	id:	CNNVD-202112-744
db:	NVD	id:	CVE-2021-20143

LAST UPDATE DATE

2024-08-14T13:53:44.055000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-100348	date:	2021-12-16T00:00:00
db:	JVNDB	id:	JVNDB-2021-016110	date:	2022-12-07T00:29:00
db:	CNNVD	id:	CNNVD-202112-744	date:	2021-12-15T00:00:00
db:	NVD	id:	CVE-2021-20143	date:	2021-12-13T18:15:30.460

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-100348	date:	2021-12-16T00:00:00
db:	JVNDB	id:	JVNDB-2021-016110	date:	2022-12-07T00:00:00
db:	CNNVD	id:	CNNVD-202112-744	date:	2021-12-09T00:00:00
db:	NVD	id:	CVE-2021-20143	date:	2021-12-09T16:15:08.027