Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal
CVE-2017-11428

7.7HIGH

Key Information:

Vendor

Onelogin

Status
Ruby-saml
Vendor
CVE Published:
17 April 2019

What is CVE-2017-11428?

OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

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Affected Version(s)

Ruby-SAML < 1.6.0

References

https://duo.com/blog/duo-finds-saml-vulnerabilities-affec...
x_refsource_MISC
https://www.kb.cert.org/vuls/id/475445
x_refsource_MISC

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kelby Ludwig of Duo Security
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