GHSA-m974-647v-whv7

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GHSA-m974-647v-whv7

Summary: Signature bypass via multiple root elements

Details: ### Impact A remote attacker may be able to bypass SAML authentication on a website using passport-saml. 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 generation of a signed message can be triggered. ### Patches Users should upgrade to passport-saml 3.2.2 or newer. The issue was also present in the beta releases of `node-saml` before v4.0.0-beta.5. ### Workarounds Disable SAML authentication. ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory: * Open a discussion in the [node-saml repo](https://github.com/node-saml/node-saml/discussions) ### Credits * Felix Wilhelm of Google Project Zero

References: https://github.com/node-saml/passport-saml/security/advisories/GHSA-m974-647v-whv7, https://nvd.nist.gov/vuln/detail/CVE-2022-39299, https://github.com/node-saml/passport-saml/commit/8b7e3f5a91c8e5ac7e890a0c90bc7491ce33155e, https://github.com/node-saml/passport-saml, https://github.com/node-saml/passport-saml/releases/tag/v3.2.2, http://packetstormsecurity.com/files/169826/Node-saml-Root-Element-Signature-Bypass.html