CVE-2023-40178 — Node-SAML is a SAML library not dependent on any frameworks that runs in Node

Node-SAML is a SAML library not dependent on any frameworks that runs in Node. The lack of checking of current timestamp allows a LogoutRequest XML to be reused multiple times even when the current time is past the NotOnOrAfter. This could impact the user where they would be logg

01What is this vulnerability?

Node-SAML is a SAML library not dependent on any frameworks that runs in Node. The lack of checking of current timestamp allows a LogoutRequest XML to be reused multiple times even when the current time is past the NotOnOrAfter. This could impact the user where they would be logged out from an expired LogoutRequest. In bigger contexts, if LogoutRequests are sent out in mass to different SPs, this…

02Affected products

Vendor	Product	Versions
node-saml	node	saml — < 4.0.5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-23T20:15:23.057Z
• Last modified: 2024-10-02T18:56:08.820Z

09References

• github.com — https://github.com/node-saml/node-saml/security/advisories/GHSA-vx8m-6fhw-pccw
• github.com — https://github.com/node-saml/node-saml/commit/045e3b9c54211fdb95f96edf363679845b…
• github.com — https://github.com/node-saml/node-saml/releases/tag/v4.0.5