CVE-2021-39171 Information

Description

Passport-SAML is a SAML 2.0 authentication provider for Passport the Node.js authentication library. Prior to version 3.1.0 a malicious SAML payload can require transforms that consume significant system resources to process thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2 https://github.com/node-saml/passport-saml/pull/595

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5