Details of VAR-202203-1868

ID

VAR-202203-1868

CVE

CVE-2021-45757

TITLE

ASUSTeK Computer Inc. of RT-AC68U Classic buffer overflow vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2021-019012

DESCRIPTION

ASUS AC68U <=3.0.0.4.385.20852 is affected by a buffer overflow in blocking.cgi, which may cause a denial of service (DoS). ASUSTeK Computer Inc. ASUS AC68U is a router from China ASUS (ASUS). The vulnerability is caused by incorrect validation of data boundaries when performing operations on memory in blocking.cgi

Trust: 2.16

sources: NVD: CVE-2021-45757 // JVNDB: JVNDB-2021-019012 // CNVD: CNVD-2022-31524

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2022-31524

AFFECTED PRODUCTS

vendor:	asus	model:	rt-ac68u	scope:	lte	version:	3.0.0.4.385.20852	Trust: 1.0
vendor:	asustek computer	model:	rt-ac68u	scope:	-	version:	-	Trust: 0.8
vendor:	asustek computer	model:	rt-ac68u	scope:	eq	version:	-	Trust: 0.8
vendor:	asustek computer	model:	rt-ac68u	scope:	lte	version:	rt-ac68u firmware 3.0.0.4.385.20852 and earlier	Trust: 0.8
vendor:	asus	model:	ac68u	scope:	lte	version:	<=3.0.0.4.385.20852	Trust: 0.6

sources: CNVD: CNVD-2022-31524 // JVNDB: JVNDB-2021-019012 // NVD: CVE-2021-45757

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-45757
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-45757
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2022-31524
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202203-2028
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2021-45757
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2022-31524
severity:	HIGH
baseScore:	7.8
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	10.0
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-45757
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-45757
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2022-31524 // JVNDB: JVNDB-2021-019012 // CNNVD: CNNVD-202203-2028 // NVD: CVE-2021-45757

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2021-019012 // NVD: CVE-2021-45757

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202203-2028

EXTERNAL IDS

db:	NVD	id:	CVE-2021-45757	Trust: 3.8
db:	JVNDB	id:	JVNDB-2021-019012	Trust: 0.8
db:	CNVD	id:	CNVD-2022-31524	Trust: 0.6
db:	CNNVD	id:	CNNVD-202203-2028	Trust: 0.6

sources: CNVD: CNVD-2022-31524 // JVNDB: JVNDB-2021-019012 // CNNVD: CNNVD-202203-2028 // NVD: CVE-2021-45757

REFERENCES

url:	http://asus.com	Trust: 2.4
url:	https://github.com/ibuili/asus	Trust: 2.4
url:	http://ac68u.com	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-45757	Trust: 1.4
url:	https://cxsecurity.com/cveshow/cve-2021-45757/	Trust: 0.6

sources: CNVD: CNVD-2022-31524 // JVNDB: JVNDB-2021-019012 // CNNVD: CNNVD-202203-2028 // NVD: CVE-2021-45757

SOURCES

db:	CNVD	id:	CNVD-2022-31524
db:	JVNDB	id:	JVNDB-2021-019012
db:	CNNVD	id:	CNNVD-202203-2028
db:	NVD	id:	CVE-2021-45757

LAST UPDATE DATE

2024-11-23T23:03:54.197000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2022-31524	date:	2022-04-22T00:00:00
db:	JVNDB	id:	JVNDB-2021-019012	date:	2023-07-13T08:30:00
db:	CNNVD	id:	CNNVD-202203-2028	date:	2022-03-28T00:00:00
db:	NVD	id:	CVE-2021-45757	date:	2024-11-21T06:33:00.730

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2022-31524	date:	2022-04-21T00:00:00
db:	JVNDB	id:	JVNDB-2021-019012	date:	2023-07-13T00:00:00
db:	CNNVD	id:	CNNVD-202203-2028	date:	2022-03-23T00:00:00
db:	NVD	id:	CVE-2021-45757	date:	2022-03-23T11:15:08.203