GMS-2020-769: Authentication Bypass in saml2-js

September 3, 2020 (updated September 29, 2021)

Versions of saml2-js prior to 2.0.5 are vulnerable to an Authentication Bypass. The package fails to enforce the assertion conditions for encrypted assertions, which may allow an attacker to reuse encrypted assertion tokens indefinitely.

Recommendation

Upgrade to version 2.0.5 or later.

References

github.com/Clever/saml2/commit/ae0da4d0a0ea682a737be481e3bd78798be405c0
github.com/Clever/saml2/pull/190
github.com/advisories/GHSA-mfcp-34xw-p57x
snyk.io/vuln/SNYK-JS-SAML2JS-474637
www.npmjs.com/advisories/1222

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