Details of VAR-202110-1350

ID

VAR-202110-1350

CVE

CVE-2021-40118

TITLE

Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software Out-of-bounds write vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-014299

DESCRIPTION

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition

Trust: 1.71

sources: NVD: CVE-2021-40118 // JVNDB: JVNDB-2021-014299 // VULHUB: VHN-401511

AFFECTED PRODUCTS

vendor:	cisco	model:	asa 5515-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5515-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5515-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	asa 5555-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	gte	version:	9.13.0	Trust: 1.0
vendor:	cisco	model:	asa 5525-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5585-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5512-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5512-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	gte	version:	7.0.0	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	lt	version:	6.4.0.13	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	lt	version:	9.12.4.29	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	lt	version:	9.14.3.9	Trust: 1.0
vendor:	cisco	model:	asa 5512-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	asa 5512-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	gte	version:	9.15.0	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	lt	version:	6.7.0.3	Trust: 1.0
vendor:	cisco	model:	asa 5515-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5580	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	gte	version:	6.5.0	Trust: 1.0
vendor:	cisco	model:	asa 5580	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5580	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	gte	version:	6.7.0	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance	scope:	lt	version:	9.8.4.40	Trust: 1.0
vendor:	cisco	model:	asa 5580	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5512-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5505	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5545-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5505	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5505	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	asa 5545-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5505	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5545-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	asa 5545-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5555-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5555-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5580	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5585-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5585-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5555-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	gte	version:	9.9.0	Trust: 1.0
vendor:	cisco	model:	asa 5525-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5525-x	scope:	eq	version:	009.012\(004.024\)	Trust: 1.0
vendor:	cisco	model:	asa 5555-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5585-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	lt	version:	6.6.5	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	lt	version:	9.15.1.17	Trust: 1.0
vendor:	cisco	model:	asa 5585-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	firepower threat defense	scope:	lt	version:	7.0.1	Trust: 1.0
vendor:	cisco	model:	asa 5505	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	gte	version:	9.16.0	Trust: 1.0
vendor:	cisco	model:	asa 5525-x	scope:	eq	version:	009.015\(001.016\)	Trust: 1.0
vendor:	cisco	model:	adaptive security appliance software	scope:	lt	version:	9.16.2.3	Trust: 1.0
vendor:	cisco	model:	asa 5525-x	scope:	eq	version:	009.016\(001\)	Trust: 1.0
vendor:	cisco	model:	asa 5545-x	scope:	eq	version:	009.015\(001.015\)	Trust: 1.0
vendor:	cisco	model:	asa 5515-x	scope:	eq	version:	009.015\(001\)	Trust: 1.0
vendor:	シスコシステムズ	model:	asa 5512-x	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	cisco adaptive security appliance ソフトウェア	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5505	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5525-x	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5545-x	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5585-x	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	cisco firepower threat defense ソフトウェア	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5515-x	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5580	scope:	-	version:	-	Trust: 0.8
vendor:	シスコシステムズ	model:	asa 5555-x	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2021-014299 // NVD: CVE-2021-40118

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-40118
value:	HIGH
Trust: 1.0
ykramarz@cisco.com:	CVE-2021-40118
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-40118
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202110-1974
value:	HIGH
Trust: 0.6
VULHUB:	VHN-401511
value:	HIGH
Trust: 0.1

nvd@nist.gov:	CVE-2021-40118
severity:	HIGH
baseScore:	7.1
vectorString:	AV:N/AC:M/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.6
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-401511
severity:	HIGH
baseScore:	7.1
vectorString:	AV:N/AC:M/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.6
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2021-40118
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
ykramarz@cisco.com:	CVE-2021-40118
baseSeverity:	HIGH
baseScore:	8.6
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	4.0
version:	3.1
Trust: 1.0
NVD:	CVE-2021-40118
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: VULHUB: VHN-401511 // JVNDB: JVNDB-2021-014299 // CNNVD: CNNVD-202110-1974 // NVD: CVE-2021-40118 // NVD: CVE-2021-40118

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.1
problemtype:	CWE-121	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: VULHUB: VHN-401511 // JVNDB: JVNDB-2021-014299 // NVD: CVE-2021-40118

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202110-1974

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202110-1974

PATCH

title:	cisco-sa-asafdt-webvpn-dos-KSqJAKPA	url:	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asafdt-webvpn-dos-KSqJAKPA	Trust: 0.8
title:	Cisco Firepower Threat Defense ( FTD )with Cisco Adaptive Security Appliances Software ( ASA Software ) Input verification error vulnerabilities repair measures	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=168148	Trust: 0.6

sources: JVNDB: JVNDB-2021-014299 // CNNVD: CNNVD-202110-1974

EXTERNAL IDS

db:	NVD	id:	CVE-2021-40118	Trust: 3.3
db:	JVNDB	id:	JVNDB-2021-014299	Trust: 0.8
db:	CS-HELP	id:	SB2021102805	Trust: 0.6
db:	AUSCERT	id:	ESB-2021.3595	Trust: 0.6
db:	CNNVD	id:	CNNVD-202110-1974	Trust: 0.6
db:	VULHUB	id:	VHN-401511	Trust: 0.1

sources: VULHUB: VHN-401511 // JVNDB: JVNDB-2021-014299 // CNNVD: CNNVD-202110-1974 // NVD: CVE-2021-40118

REFERENCES

url:	https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-asafdt-webvpn-dos-ksqjakpa	Trust: 2.3
url:	https://nvd.nist.gov/vuln/detail/cve-2021-40118	Trust: 1.4
url:	https://www.auscert.org.au/bulletins/esb-2021.3595	Trust: 0.6
url:	https://www.cybersecurity-help.cz/vdb/sb2021102805	Trust: 0.6
url:	https://vigilance.fr/vulnerability/cisco-asa-denial-of-service-via-web-services-interface-https-requests-36738	Trust: 0.6

sources: VULHUB: VHN-401511 // JVNDB: JVNDB-2021-014299 // CNNVD: CNNVD-202110-1974 // NVD: CVE-2021-40118

SOURCES

db:	VULHUB	id:	VHN-401511
db:	JVNDB	id:	JVNDB-2021-014299
db:	CNNVD	id:	CNNVD-202110-1974
db:	NVD	id:	CVE-2021-40118

LAST UPDATE DATE

2024-11-23T21:58:39.461000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-401511	date:	2022-08-05T00:00:00
db:	JVNDB	id:	JVNDB-2021-014299	date:	2022-10-12T07:17:00
db:	CNNVD	id:	CNNVD-202110-1974	date:	2022-08-08T00:00:00
db:	NVD	id:	CVE-2021-40118	date:	2024-11-21T06:23:36.533

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-401511	date:	2021-10-27T00:00:00
db:	JVNDB	id:	JVNDB-2021-014299	date:	2022-10-12T00:00:00
db:	CNNVD	id:	CNNVD-202110-1974	date:	2021-10-27T00:00:00
db:	NVD	id:	CVE-2021-40118	date:	2021-10-27T19:15:08.823