CVE-2020-26160 (High) detected in github.com/dgrijalva/jwt-go-v3.2.0+incompatible, kubernetesv1.15.0-alpha.1

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CVE-2020-26160 - High Severity Vulnerability

Vulnerable Libraries - github.com/dgrijalva/jwt-go-v3.2.0+incompatible, kubernetesv1.15.0-alpha.1

github.com/dgrijalva/jwt-go-v3.2.0+incompatible

ARCHIVE - Golang implementation of JSON Web Tokens (JWT). This project is now maintained at:

Library home page: https://proxy.golang.org/github.com/dgrijalva/jwt-go/@v/v3.2.0+incompatible.zip

Dependency Hierarchy:

• ❌ github.com/dgrijalva/jwt-go-v3.2.0+incompatible (Vulnerable Library)

Vulnerability Details

jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.

Publish Date: 2020-09-30

URL: CVE-2020-26160

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/CVE-2020-26160

Release Date: 2020-09-30

Fix Resolution: v4.0.0-preview1