What is CVE-2017-11428?

CVE-2017-11428 is a high-severity vulnerability in Onelogin Ruby-saml, classified under Improper Authentication. CVSS score: 7.7/10. Published 2019-04-17.

How severe is CVE-2017-11428?

High severity. CVSS v3 base score is 7.7 out of 10.

Is CVE-2017-11428 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Onelogin Ruby-saml

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…

Vulnerability class: Broken Authentication

EPSS: 0.025 (83.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Onelogin Ruby-saml — versions unspecified

Weakness classification (CWE)

CWE-287 — Improper Authentication

Public proof-of-concept exploits

References

security@duo.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)
security@duo.com (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-11428?: CVE-2017-11428 is a high-severity vulnerability in Onelogin Ruby-saml, classified under Improper Authentication. CVSS score: 7.7/10. Published 2019-04-17.
How severe is CVE-2017-11428?: High severity. CVSS v3 base score is 7.7 out of 10.
Is CVE-2017-11428 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.