ID

VAR-202103-0899


CVE

CVE-2021-27306


TITLE

Kong Gateway Access control error vulnerability

Trust: 0.6

sources: CNNVD: CNNVD-202103-1111

DESCRIPTION

An improper access control vulnerability in the JWT plugin in Kong Gateway prior to 2.3.2.0 allows unauthenticated users access to authenticated routes without a valid token JWT. Kong Gateway is an API gateway of the Italian (Kong) company. A gateway is provided

Trust: 1.08

sources: NVD: CVE-2021-27306 // VULHUB: VHN-386539 // VULMON: CVE-2021-27306

AFFECTED PRODUCTS

vendor:konghqmodel:kong gatewayscope:ltversion:2.3.2.0

Trust: 1.0

sources: NVD: CVE-2021-27306

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-27306
value: HIGH

Trust: 1.0

CNNVD: CNNVD-202103-1111
value: HIGH

Trust: 0.6

VULHUB: VHN-386539
value: MEDIUM

Trust: 0.1

VULMON: CVE-2021-27306
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-27306
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

VULHUB: VHN-386539
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
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-2021-27306
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-386539 // VULMON: CVE-2021-27306 // CNNVD: CNNVD-202103-1111 // NVD: CVE-2021-27306

PROBLEMTYPE DATA

problemtype:CWE-706

Trust: 1.1

sources: VULHUB: VHN-386539 // NVD: CVE-2021-27306

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202103-1111

TYPE

access control error

Trust: 0.6

sources: CNNVD: CNNVD-202103-1111

PATCH

title:Kong Gateway Fixes for access control error vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=145136

Trust: 0.6

sources: CNNVD: CNNVD-202103-1111

EXTERNAL IDS

db:NVDid:CVE-2021-27306

Trust: 1.8

db:CNNVDid:CNNVD-202103-1111

Trust: 0.6

db:VULHUBid:VHN-386539

Trust: 0.1

db:VULMONid:CVE-2021-27306

Trust: 0.1

sources: VULHUB: VHN-386539 // VULMON: CVE-2021-27306 // CNNVD: CNNVD-202103-1111 // NVD: CVE-2021-27306

REFERENCES

url:https://docs.konghq.com/enterprise/changelog/#core-1

Trust: 1.8

url:https://medium.com/%40sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3

Trust: 1.0

url:https://medium.com/@sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-27306

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/863.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: VULHUB: VHN-386539 // VULMON: CVE-2021-27306 // CNNVD: CNNVD-202103-1111 // NVD: CVE-2021-27306

SOURCES

db:VULHUBid:VHN-386539
db:VULMONid:CVE-2021-27306
db:CNNVDid:CNNVD-202103-1111
db:NVDid:CVE-2021-27306

LAST UPDATE DATE

2024-11-23T23:11:07.111000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-386539date:2022-07-12T00:00:00
db:VULMONid:CVE-2021-27306date:2021-03-24T00:00:00
db:CNNVDid:CNNVD-202103-1111date:2022-07-14T00:00:00
db:NVDid:CVE-2021-27306date:2024-11-21T05:57:46.120

SOURCES RELEASE DATE

db:VULHUBid:VHN-386539date:2021-03-18T00:00:00
db:VULMONid:CVE-2021-27306date:2021-03-18T00:00:00
db:CNNVDid:CNNVD-202103-1111date:2021-03-18T00:00:00
db:NVDid:CVE-2021-27306date:2021-03-18T15:15:16.230