Security Advisories: GSA_kwCzR0hTQS03N2Z3LXJmNHYtdmZwOc4AAz-Y

passport-wsfed-saml2 vulnerable to Signature Bypass in SAML2 token

Information

Please note that this is not a new disclosure, and is previously reported in our SECURITY-NOTICE.md which we removed in favor of github advisory.

Overview

This vulnerability allows an attacker to impersonate another user and potentially elevate their privileges if the SAML identity provider:

• signs SAML response and signs assertion

• does not sign SAML response and signs assertion

Am I affected?

You may be affected if you use SAML2 protocol with passport-wsfed-saml2 versions below 3.0.5 and your SAML identity Provider:

1. signs SAML response and signs assertion; or
2. does not sign SAML response and signs assertion

How do I fix it?

You may fix this vulnerability by upgrading your library to version 3.0.5 or above.

Will the fix impact my users?

This fix patches the library that your application runs, but will not impact your users, their current state, or any existing sessions.

Permalink: https://github.com/advisories/GHSA-77fw-rf4v-vfp9
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS03N2Z3LXJmNHYtdmZwOc4AAz-Y
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 11 months ago
Updated: 11 months ago

CVSS Score: 8.1
CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-77fw-rf4v-vfp9, CVE-2017-16897
References:

• https://github.com/auth0/passport-wsfed-saml2/security/advisories/GHSA-77fw-rf4v-vfp9
• https://nvd.nist.gov/vuln/detail/CVE-2017-16897
• https://github.com/auth0/passport-wsfed-saml2/commit/520b9fc0bb4249ce83bec47e30153419f086ab70
• https://auth0.com/docs/security/bulletins/cve-2017-16897
• https://github.com/advisories/GHSA-77fw-rf4v-vfp9

Repository: https://github.com/auth0/passport-wsfed-saml2
Blast Radius: 8.4

Affected Packages