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ID

VAR-202106-1416


CVE

CVE-2021-23021


TITLE

Nginx Controller  Improper Permission Assignment Vulnerability in Critical Resources

Trust: 0.8

sources: JVNDB: JVNDB-2021-007663

DESCRIPTION

The Nginx Controller 3.x before 3.7.0 agent configuration file /etc/controller-agent/agent.conf is world readable with current permission bits set to 644. Nginx Controller Is vulnerable to an improperly assigned permission for critical resources.Information may be obtained. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. F5 NGINX Controller is a centralized monitoring and management platform for NGINX from F5 Corporation in the United States. The platform supports managing multiple NGINX instances using a visual interface. A security vulnerability exists in the NGINX controller due to incorrect default permissions allowing local users to escalate privileges on the system. Affected products and versions are as follows: NGINX Controller: 3.0.0, 3.1.0, 3.2.0, 3.3.0, 3.4.0, 3.5.0, 3.6.0

Trust: 2.25

sources: NVD: CVE-2021-23021 // JVNDB: JVNDB-2021-007663 // CNNVD: CNNVD-202104-975 // VULHUB: VHN-381507

AFFECTED PRODUCTS

vendor:f5model:nginx controllerscope:ltversion:3.7.0

Trust: 1.0

vendor:f5model:nginx controllerscope:gteversion:3.0.0

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vendor:f5model:nginx controllerscope:eqversion:3.7.0

Trust: 0.8

vendor:f5model:nginx controllerscope:eqversion: -

Trust: 0.8

vendor:f5model:nginx controllerscope:ltversion:3.x

Trust: 0.8

sources: JVNDB: JVNDB-2021-007663 // NVD: CVE-2021-23021

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-23021
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-23021
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202104-975
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202105-1583
value: MEDIUM

Trust: 0.6

VULHUB: VHN-381507
value: LOW

Trust: 0.1

nvd@nist.gov: CVE-2021-23021
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-381507
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-23021
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 1.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-23021
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-381507 // JVNDB: JVNDB-2021-007663 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-1583 // NVD: CVE-2021-23021

PROBLEMTYPE DATA

problemtype:CWE-732

Trust: 1.1

problemtype:Improper permission assignment for critical resources (CWE-732) [NVD Evaluation ]

Trust: 0.8

sources: VULHUB: VHN-381507 // JVNDB: JVNDB-2021-007663 // NVD: CVE-2021-23021

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202105-1583

TYPE

other

Trust: 1.2

sources: CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-1583

PATCH

title:K36926027url:https://support.f5.com/csp/article/K36926027

Trust: 0.8

title:Nginx Fixes for other vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=154150

Trust: 0.6

sources: JVNDB: JVNDB-2021-007663 // CNNVD: CNNVD-202105-1583

EXTERNAL IDS

db:NVDid:CVE-2021-23021

Trust: 3.3

db:JVNDBid:JVNDB-2021-007663

Trust: 0.8

db:CS-HELPid:SB2021041363

Trust: 0.6

db:CNNVDid:CNNVD-202104-975

Trust: 0.6

db:CS-HELPid:SB2021052546

Trust: 0.6

db:AUSCERTid:ESB-2021.1802

Trust: 0.6

db:CNNVDid:CNNVD-202105-1583

Trust: 0.6

db:VULHUBid:VHN-381507

Trust: 0.1

sources: VULHUB: VHN-381507 // JVNDB: JVNDB-2021-007663 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-1583 // NVD: CVE-2021-23021

REFERENCES

url:https://support.f5.com/csp/article/k36926027

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2021-23021

Trust: 0.8

url:https://www.cybersecurity-help.cz/vdb/sb2021041363

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2021052546

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2021.1802

Trust: 0.6

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-381507 // JVNDB: JVNDB-2021-007663 // CNNVD: CNNVD-202104-975 // CNNVD: CNNVD-202105-1583 // NVD: CVE-2021-23021

SOURCES

db:VULHUBid:VHN-381507
db:JVNDBid:JVNDB-2021-007663
db:CNNVDid:CNNVD-202104-975
db:CNNVDid:CNNVD-202105-1583
db:NVDid:CVE-2021-23021

LAST UPDATE DATE

2024-08-14T12:24:43.889000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-381507date:2021-06-11T00:00:00
db:JVNDBid:JVNDB-2021-007663date:2022-02-18T09:04:00
db:CNNVDid:CNNVD-202104-975date:2021-04-14T00:00:00
db:CNNVDid:CNNVD-202105-1583date:2021-08-12T00:00:00
db:NVDid:CVE-2021-23021date:2021-06-11T19:47:04.980

SOURCES RELEASE DATE

db:VULHUBid:VHN-381507date:2021-06-01T00:00:00
db:JVNDBid:JVNDB-2021-007663date:2022-02-18T00:00:00
db:CNNVDid:CNNVD-202104-975date:2021-04-13T00:00:00
db:CNNVDid:CNNVD-202105-1583date:2021-05-25T00:00:00
db:NVDid:CVE-2021-23021date:2021-06-01T13:15:08.010