Details of VAR-202112-0424

ID

VAR-202112-0424

CVE

CVE-2021-20045

TITLE

plural SonicWALL Appliance Classic Buffer Overflow Vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-016101

DESCRIPTION

A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances. plural SonicWALL Appliances contain a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

Trust: 1.62

sources: NVD: CVE-2021-20045 // JVNDB: JVNDB-2021-016101

AFFECTED PRODUCTS

vendor:	sonicwall	model:	sma 500v	scope:	eq	version:	10.2.1.1-19sv	Trust: 1.0
vendor:	sonicwall	model:	sma 410	scope:	eq	version:	10.2.0.8-37sv	Trust: 1.0
vendor:	sonicwall	model:	sma 400	scope:	eq	version:	10.2.0.8-37sv	Trust: 1.0
vendor:	sonicwall	model:	sma 200	scope:	eq	version:	10.2.0.8-37sv	Trust: 1.0
vendor:	sonicwall	model:	sma 210	scope:	eq	version:	10.2.1.1-19sv	Trust: 1.0
vendor:	sonicwall	model:	sma 200	scope:	eq	version:	10.2.1.1-19sv	Trust: 1.0
vendor:	sonicwall	model:	sma 400	scope:	eq	version:	10.2.1.1-19sv	Trust: 1.0
vendor:	sonicwall	model:	sma 500v	scope:	eq	version:	10.2.0.8-37sv	Trust: 1.0
vendor:	sonicwall	model:	sma 410	scope:	eq	version:	10.2.1.1-19sv	Trust: 1.0
vendor:	sonicwall	model:	sma 210	scope:	eq	version:	10.2.0.8-37sv	Trust: 1.0
vendor:	sonicwall	model:	sma210	scope:	-	version:	-	Trust: 0.8
vendor:	sonicwall	model:	sma200	scope:	-	version:	-	Trust: 0.8
vendor:	sonicwall	model:	sma410	scope:	-	version:	-	Trust: 0.8
vendor:	sonicwall	model:	sma400	scope:	-	version:	-	Trust: 0.8
vendor:	sonicwall	model:	sma500v	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-016101 // NVD: CVE-2021-20045

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-20045
value:	CRITICAL
Trust: 1.0
NVD:	CVE-2021-20045
value:	CRITICAL
Trust: 0.8
CNNVD:	CNNVD-202112-550
value:	CRITICAL
Trust: 0.6

nvd@nist.gov:	CVE-2021-20045
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8

nvd@nist.gov:	CVE-2021-20045
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	CVE-2021-20045
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	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: JVNDB: JVNDB-2021-016101 // CNNVD: CNNVD-202112-550 // NVD: CVE-2021-20045

PROBLEMTYPE DATA

problemtype:	CWE-120	Trust: 1.0
problemtype:	Classic buffer overflow (CWE-120) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-016101 // NVD: CVE-2021-20045

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202112-550

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202112-550

PATCH

title:	SNWLID-2021-0026	url:	https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026	Trust: 0.8
title:	SonicWall SMA100 Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=173991	Trust: 0.6

sources: JVNDB: JVNDB-2021-016101 // CNNVD: CNNVD-202112-550

EXTERNAL IDS

db:	NVD	id:	CVE-2021-20045	Trust: 3.2
db:	JVNDB	id:	JVNDB-2021-016101	Trust: 0.8
db:	CS-HELP	id:	SB2021120713	Trust: 0.6
db:	CNNVD	id:	CNNVD-202112-550	Trust: 0.6

sources: JVNDB: JVNDB-2021-016101 // CNNVD: CNNVD-202112-550 // NVD: CVE-2021-20045

REFERENCES

url:	https://psirt.global.sonicwall.com/vuln-detail/snwlid-2021-0026	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-20045	Trust: 1.4
url:	https://www.cybersecurity-help.cz/vdb/sb2021120713	Trust: 0.6

sources: JVNDB: JVNDB-2021-016101 // CNNVD: CNNVD-202112-550 // NVD: CVE-2021-20045

SOURCES

db:	JVNDB	id:	JVNDB-2021-016101
db:	CNNVD	id:	CNNVD-202112-550
db:	NVD	id:	CVE-2021-20045

LAST UPDATE DATE

2024-08-14T13:23:03.795000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2021-016101	date:	2022-12-06T07:59:00
db:	CNNVD	id:	CNNVD-202112-550	date:	2021-12-15T00:00:00
db:	NVD	id:	CVE-2021-20045	date:	2021-12-10T18:04:37.307

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2021-016101	date:	2022-12-06T00:00:00
db:	CNNVD	id:	CNNVD-202112-550	date:	2021-12-07T00:00:00
db:	NVD	id:	CVE-2021-20045	date:	2021-12-08T10:15:08.200