Details of VAR-202012-0728

ID

VAR-202012-0728

CVE

CVE-2020-27721

TITLE

F5 Networks of BIG-IP Domain Name System (DNS) and BIG-IP Global Traffic Manager (GTM) Vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2020-018311

DESCRIPTION

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response. F5 Networks of BIG-IP Domain Name System (DNS) and BIG-IP Global Traffic Manager (GTM) Exists in unspecified vulnerabilities.Service operation interruption (DoS) It may be in a state

Trust: 1.71

sources: NVD: CVE-2020-27721 // JVNDB: JVNDB-2020-018311 // VULHUB: VHN-371832

AFFECTED PRODUCTS

vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	12.1.0	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	16.0.0	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	11.6.1	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	14.1.0	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	12.1.0	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lte	version:	12.1.5	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lt	version:	16.0.1	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	15.0.0	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lt	version:	15.1.2	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	13.1.0	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	15.0.0	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lte	version:	11.6.5	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lte	version:	13.1.3	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	gte	version:	13.1.0	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lt	version:	14.1.3.1	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lt	version:	16.0.1	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lte	version:	11.6.5	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lte	version:	13.1.3	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lt	version:	15.1.2	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	16.0.0	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	lte	version:	12.1.5	Trust: 1.0
vendor:	f5	model:	big-ip domain name system	scope:	lt	version:	14.1.3.1	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	11.6.1	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	gte	version:	14.1.0	Trust: 1.0
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	15.0.0 that's all 15.1.2	Trust: 0.8
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	11.6.1 to 11.6.5	Trust: 0.8
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	16.0.0 that's all 16.0.1	Trust: 0.8
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	13.1.0 to 13.1.3	Trust: 0.8
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	12.1.0 to 12.1.5	Trust: 0.8
vendor:	f5	model:	big-ip domain name system	scope:	-	version:	-	Trust: 0.8
vendor:	f5	model:	big-ip global traffic manager	scope:	eq	version:	14.1.0 that's all 14.1.3.1	Trust: 0.8

sources: JVNDB: JVNDB-2020-018311 // NVD: CVE-2020-27721

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2020-27721
value:	HIGH
Trust: 1.0
NVD:	CVE-2020-27721
value:	HIGH
Trust: 0.8
VULHUB:	VHN-371832
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2020-27721
severity:	MEDIUM
baseScore:	4.3
vectorString:	AV:N/AC:M/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	8.6
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-371832
severity:	MEDIUM
baseScore:	4.3
vectorString:	AV:N/AC:M/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	8.6
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2020-27721
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-2020-27721
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-371832 // JVNDB: JVNDB-2020-018311 // NVD: CVE-2020-27721

PROBLEMTYPE DATA

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

sources: JVNDB: JVNDB-2020-018311 // NVD: CVE-2020-27721

PATCH

title:

K52035247

url:

https://my.f5.com/manage/s/article/K52035247

Trust: 0.8

sources: JVNDB: JVNDB-2020-018311

EXTERNAL IDS

db:	NVD	id:	CVE-2020-27721	Trust: 2.7
db:	JVNDB	id:	JVNDB-2020-018311	Trust: 0.8
db:	VULHUB	id:	VHN-371832	Trust: 0.1

sources: VULHUB: VHN-371832 // JVNDB: JVNDB-2020-018311 // NVD: CVE-2020-27721

REFERENCES

url:	https://support.f5.com/csp/article/k52035247	Trust: 1.1
url:	https://nvd.nist.gov/vuln/detail/cve-2020-27721	Trust: 0.8

sources: VULHUB: VHN-371832 // JVNDB: JVNDB-2020-018311 // NVD: CVE-2020-27721

SOURCES

db:	VULHUB	id:	VHN-371832
db:	JVNDB	id:	JVNDB-2020-018311
db:	NVD	id:	CVE-2020-27721

LAST UPDATE DATE

2024-11-23T21:35:02.145000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-371832	date:	2020-12-28T00:00:00
db:	JVNDB	id:	JVNDB-2020-018311	date:	2024-07-19T02:04:00
db:	NVD	id:	CVE-2020-27721	date:	2024-11-21T05:21:41.717

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-371832	date:	2020-12-24T00:00:00
db:	JVNDB	id:	JVNDB-2020-018311	date:	2024-07-19T00:00:00
db:	NVD	id:	CVE-2020-27721	date:	2020-12-24T15:15:12.763