Details of VAR-202012-0721

ID

VAR-202012-0721

CVE

CVE-2020-27718

TITLE

F5 Networks of BIG-IP Advanced Web Application Firewall (WAF) and BIG-IP Application Security Manager (ASM) Vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-018308

DESCRIPTION

When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process. F5 Networks of BIG-IP Advanced Web Application Firewall (WAF) and BIG-IP Application Security Manager (ASM) Exists in unspecified vulnerabilities.Service operation interruption (DoS) It may be in a state. It provides secure remote access, protects e-mail, simplifies Web access control, and enhances network and application performance. F5 BIG-IP ASM has a denial of service vulnerability. Attackers can use the JSON payload that the vulnerability can pass to trigger an overload to trigger a denial of service. The following products and versions are affected: 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6. 1-11.6.5.2

Trust: 2.25

sources: NVD: CVE-2020-27718 // JVNDB: JVNDB-2020-018308 // CNVD: CNVD-2020-74866 // VULHUB: VHN-371829

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-74866

AFFECTED PRODUCTS

vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	12.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lt	version:	14.1.3.1	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lt	version:	13.1.3.5	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lte	version:	11.6.5	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lt	version:	14.1.3.1	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	15.0.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lte	version:	12.1.5	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	13.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	16.0.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	11.6.1	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	11.6.1	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lte	version:	12.1.5	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	14.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	12.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lt	version:	15.1.1	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lte	version:	11.6.5	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lt	version:	15.1.1	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	16.0.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lt	version:	16.0.1	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	15.0.0	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	lt	version:	16.0.1	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	gte	version:	13.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	lt	version:	13.1.3.5	Trust: 1.0
vendor:	f5	model:	big-ip advanced web application firewall	scope:	gte	version:	14.1.0	Trust: 1.0
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	14.1.0 that's all 14.1.3.1	Trust: 0.8
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	13.1.0 that's all 13.1.3.5	Trust: 0.8
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	15.0.0 that's all 15.1.1	Trust: 0.8
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	11.6.1 to 11.6.5	Trust: 0.8
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	16.0.0 that's all 16.0.1	Trust: 0.8
vendor:	f5	model:	big-ip application security manager	scope:	eq	version:	12.1.0 to 12.1.5	Trust: 0.8
vendor:	f5	model:	big-ip advanced web application firewall	scope:	-	version:	-	Trust: 0.8
vendor:	f5	model:	big-ip asm	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2020-74866 // JVNDB: JVNDB-2020-018308 // NVD: CVE-2020-27718

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-27718
value:	HIGH
Trust: 1.0
NVD:	CVE-2020-27718
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-74866
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202012-1294
value:	HIGH
Trust: 0.6
VULHUB:	VHN-371829
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2020-27718
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2020-74866
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
VULHUB:	VHN-371829
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2020-27718
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-2020-27718
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-2020-74866 // VULHUB: VHN-371829 // JVNDB: JVNDB-2020-018308 // CNNVD: CNNVD-202012-1294 // NVD: CVE-2020-27718

PROBLEMTYPE DATA

problemtype:	NVD-CWE-noinfo	Trust: 1.0
problemtype:	Lack of information (CWE-noinfo) [NVD evaluation ]	Trust: 0.8
problemtype:	CWE-400	Trust: 0.1

sources: VULHUB: VHN-371829 // JVNDB: JVNDB-2020-018308 // NVD: CVE-2020-27718

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202012-1294

TYPE

resource management error

Trust: 0.6

sources: CNNVD: CNNVD-202012-1294

PATCH

title:	K58102101	url:	https://my.f5.com/manage/s/article/K58102101	Trust: 0.8
title:	Patch for F5 BIG-IP ASM Denial of Service Vulnerability (CNVD-2020-74866)	url:	https://www.cnvd.org.cn/patchInfo/show/242806	Trust: 0.6
title:	F5 BIG-IP ASM Remediation of resource management error vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=138063	Trust: 0.6

sources: CNVD: CNVD-2020-74866 // JVNDB: JVNDB-2020-018308 // CNNVD: CNNVD-202012-1294

EXTERNAL IDS

db:	NVD	id:	CVE-2020-27718	Trust: 3.9
db:	JVNDB	id:	JVNDB-2020-018308	Trust: 0.8
db:	CNNVD	id:	CNNVD-202012-1294	Trust: 0.7
db:	CNVD	id:	CNVD-2020-74866	Trust: 0.6
db:	AUSCERT	id:	ESB-2020.4494	Trust: 0.6
db:	VULHUB	id:	VHN-371829	Trust: 0.1

sources: CNVD: CNVD-2020-74866 // VULHUB: VHN-371829 // JVNDB: JVNDB-2020-018308 // CNNVD: CNNVD-202012-1294 // NVD: CVE-2020-27718

REFERENCES

url:	https://support.f5.com/csp/article/k58102101	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2020-27718	Trust: 1.4
url:	https://vigilance.fr/vulnerability/f5-big-ip-asm-overload-via-json-payload-34156	Trust: 1.2
url:	https://www.auscert.org.au/bulletins/esb-2020.4494/	Trust: 0.6

sources: CNVD: CNVD-2020-74866 // VULHUB: VHN-371829 // JVNDB: JVNDB-2020-018308 // CNNVD: CNNVD-202012-1294 // NVD: CVE-2020-27718

SOURCES

db:	CNVD	id:	CNVD-2020-74866
db:	VULHUB	id:	VHN-371829
db:	JVNDB	id:	JVNDB-2020-018308
db:	CNNVD	id:	CNNVD-202012-1294
db:	NVD	id:	CVE-2020-27718

LAST UPDATE DATE

2024-11-23T23:07:45.951000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-74866	date:	2020-12-29T00:00:00
db:	VULHUB	id:	VHN-371829	date:	2021-07-21T00:00:00
db:	JVNDB	id:	JVNDB-2020-018308	date:	2024-07-19T01:17:00
db:	CNNVD	id:	CNNVD-202012-1294	date:	2021-08-16T00:00:00
db:	NVD	id:	CVE-2020-27718	date:	2024-11-21T05:21:41.357

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-74866	date:	2020-12-29T00:00:00
db:	VULHUB	id:	VHN-371829	date:	2020-12-24T00:00:00
db:	JVNDB	id:	JVNDB-2020-018308	date:	2024-07-19T00:00:00
db:	CNNVD	id:	CNNVD-202012-1294	date:	2020-12-17T00:00:00
db:	NVD	id:	CVE-2020-27718	date:	2020-12-24T15:15:12.593