CVE-2017-16897
passport-wsfed-saml2 vulnerable to Signature Bypass in SAML2 token
Description
## Information Please note that this is not a new disclosure, and is previously reported in our [SECURITY-NOTICE.md](https://github.com/auth0/passport-wsfed-saml2/commit/520b9fc0bb4249ce83bec47e30153419f086ab70 ) 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.
How to fix CVE-2017-16897
To remediate CVE-2017-16897, upgrade the affected package to a fixed version below.
- —upgrade to 3.0.5 or later
Is CVE-2017-16897 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.0.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |