CVE-2020-15240

Summary

omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the jwt_validator.verify method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using omniauth-auth0. 2. You are using JWTValidator.verify method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. The issue is patched in version 2.4.1.

Affected Software

VendorProductVersion RangeStatus
auth0omniauth-auth0>= 2.3.0, <2.4.1affected

Weaknesses

  • CWE-287: CWE-287 Improper Authentication
  • CWE-347: CWE-347 Improper Verification of Cryptographic Signature

ADP Enrichment

CVE Program Container

Additional References

References