XML External Entity (XXE) Injection

Affecting samlify package, versions <2.3.0

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Overview

samlify is a Node.js API for Single Sign On (SAML 2.0).

Affected versions of this package are vulnerable to XML Injection attack.

An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.

Remediation

Upgrade to shiba version 2.3.0 or higher.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    High
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Credit
Unknown
CVE
CVE-2017-1000452
CWE
CWE-91
Snyk ID
npm:samlify:20171002
Disclosed
02 Oct, 2017
Published
22 Jan, 2018