Improper Verification of Cryptographic Signature Affecting @node-saml/node-saml package, versions <4.0.0-beta.5


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.94% (84th percentile)

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  • Snyk IDSNYK-JS-NODESAMLNODESAML-3043101
  • published13 Oct 2022
  • disclosed12 Oct 2022
  • creditFelix Wilhelm

Introduced: 12 Oct 2022

CVE-2022-39299  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade @node-saml/node-saml to version 4.0.0-beta.5 or higher.

Overview

@node-saml/node-saml is a SAML 2.0 implementation for Node.js

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature by allowing a remote attacker to bypass SAML authentication on a website using passport-saml.

Note A successful attack requires that the attacker is in possession of an arbitrary IDP-signed XML element. Depending on the IDP used, fully unauthenticated attacks (e.g, without access to a valid user) might also be feasible if the generation of a signed message can be triggered.

Workaround

Users who are unable to upgrade to the fixed version should disable SAML authentication.

CVSS Scores

version 3.1