CVE-2021-27306

CVSS V2 Medium 4.3 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-27306
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-18T15:15:16
  • Last Modified Date
  • 2022-07-12T17:42:04
Weakness Enumerations
CWE URL
CWE-706 http://cwe.mitre.org/data/definitions/706.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:konghq:kong_gateway:*:*:*:*:enterprise:*:*:* 1 OR 2.3.2.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://medium.com/@sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3 Exploit Patch Third Party Advisory
https://docs.konghq.com/enterprise/changelog/#core-1 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-27306
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27306
History
Created Old Value New Value Data Type Notes
2022-05-10 07:19:00 Added to TrackCVE
2022-12-06 00:01:22 2021-03-18T15:15Z 2021-03-18T15:15:16 CVE Published Date updated
2022-12-06 00:01:22 2022-07-12T17:42:04 CVE Modified Date updated
2022-12-06 00:01:22 Analyzed Vulnerability Status updated