Details of VAR-202106-1413

ID

VAR-202106-1413

CVE

CVE-2021-23018

TITLE

NGINX Controller Vulnerability in plaintext transmission of important information in

Trust: 0.8

sources: JVNDB: JVNDB-2021-007659

DESCRIPTION

Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster. NGINX Controller Contains a vulnerability in the transmission of important information in clear text.Information may be obtained and information may be tampered with. Nginx is a lightweight web server/reverse proxy server and email (IMAP/POP3) proxy server of Nginx Company in the United States. There is a security vulnerability in the Nginx controller. An attacker could exploit this vulnerability to read and modify data sent between services managed within an affected controller

Trust: 1.71

sources: NVD: CVE-2021-23018 // JVNDB: JVNDB-2021-007659 // VULHUB: VHN-381504

AFFECTED PRODUCTS

vendor:	f5	model:	nginx controller	scope:	gte	version:	3.0.0	Trust: 1.0
vendor:	f5	model:	nginx controller	scope:	lte	version:	3.4.0	Trust: 1.0
vendor:	f5	model:	nginx controller	scope:	eq	version:	-	Trust: 0.8
vendor:	f5	model:	nginx controller	scope:	eq	version:	before 3.4.0	Trust: 0.8
vendor:	f5	model:	nginx controller	scope:	lt	version:	3.x	Trust: 0.8

sources: JVNDB: JVNDB-2021-007659 // NVD: CVE-2021-23018

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-23018
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-23018
value:	HIGH
Trust: 0.8
CNNVD:	CNNVD-202106-031
value:	HIGH
Trust: 0.6
VULHUB:	VHN-381504
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-23018
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:N/AC:M/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
VULHUB:	VHN-381504
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:N/AC:M/AU:N/C:P/I:P/A:N
accessVector:	NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	NONE
exploitabilityScore:	8.6
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2021-23018
baseSeverity:	HIGH
baseScore:	7.4
vectorString:	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	2.2
impactScore:	5.2
version:	3.1
Trust: 1.0
NVD:	CVE-2021-23018
baseSeverity:	HIGH
baseScore:	7.4
vectorString:	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
attackVector:	NETWORK
attackComplexity:	HIGH
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: VULHUB: VHN-381504 // JVNDB: JVNDB-2021-007659 // CNNVD: CNNVD-202106-031 // NVD: CVE-2021-23018

PROBLEMTYPE DATA

problemtype:	CWE-319	Trust: 1.1
problemtype:	Sending important information in clear text (CWE-319) [NVD Evaluation ]	Trust: 0.8

sources: VULHUB: VHN-381504 // JVNDB: JVNDB-2021-007659 // NVD: CVE-2021-23018

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202106-031

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202106-031

PATCH

title:	K97002210	url:	https://support.f5.com/csp/article/K97002210	Trust: 0.8
title:	Nginx Controller Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=154159	Trust: 0.6

sources: JVNDB: JVNDB-2021-007659 // CNNVD: CNNVD-202106-031

EXTERNAL IDS

db:	NVD	id:	CVE-2021-23018	Trust: 3.3
db:	JVNDB	id:	JVNDB-2021-007659	Trust: 0.8
db:	CNNVD	id:	CNNVD-202106-031	Trust: 0.6
db:	VULHUB	id:	VHN-381504	Trust: 0.1

sources: VULHUB: VHN-381504 // JVNDB: JVNDB-2021-007659 // CNNVD: CNNVD-202106-031 // NVD: CVE-2021-23018

REFERENCES

url:	https://support.f5.com/csp/article/k97002210	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-23018	Trust: 1.4
url:	https://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-f5-nginx-controller-affect-ibm-cloud-pak-for-automation/	Trust: 0.6

sources: VULHUB: VHN-381504 // JVNDB: JVNDB-2021-007659 // CNNVD: CNNVD-202106-031 // NVD: CVE-2021-23018

SOURCES

db:	VULHUB	id:	VHN-381504
db:	JVNDB	id:	JVNDB-2021-007659
db:	CNNVD	id:	CNNVD-202106-031
db:	NVD	id:	CVE-2021-23018

LAST UPDATE DATE

2024-08-14T14:11:21.609000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-381504	date:	2021-06-11T00:00:00
db:	JVNDB	id:	JVNDB-2021-007659	date:	2022-02-18T09:04:00
db:	CNNVD	id:	CNNVD-202106-031	date:	2021-07-21T00:00:00
db:	NVD	id:	CVE-2021-23018	date:	2021-06-11T17:33:11.807

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-381504	date:	2021-06-01T00:00:00
db:	JVNDB	id:	JVNDB-2021-007659	date:	2022-02-18T00:00:00
db:	CNNVD	id:	CNNVD-202106-031	date:	2021-06-01T00:00:00
db:	NVD	id:	CVE-2021-23018	date:	2021-06-01T12:15:07.720