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GitHub_MCVE-2020-15240

HistoryOct 21, 2020 - 6:15 p.m.

CVE-2020-15240

2020-10-2118:15:12

CWE-287

CWE-347

GitHub_M

web.nvd.nist.gov

cve-2020-15240

omniauth-auth0

rubygems

validation

jwt

signature

vulnerability

nvd

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

AI Score

9.1

Confidence

High

EPSS

0.003

Percentile

69.8%

JSON

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 configurations

Nvd

Vulners

Node

auth0omniauth-auth0Range2.3.0–2.4.1ruby

VendorProductVersionCPE
auth0omniauth-auth0*cpe:2.3:a:auth0:omniauth-auth0:*:*:*:*:*:ruby:*:*

Vendor	Product	Version	CPE
auth0	omniauth-auth0	*	cpe:2.3:a:auth0:omniauth-auth0::::::ruby::*

CNA Affected

[
  {
    "product": "omniauth-auth0",
    "vendor": "auth0",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.3.0, <2.4.1"
      }
    ]
  }
]