Auth bypass in Omniauth Saml
CVE-2017-11430
OmniAuth OmnitAuth-SAML 1.9.0 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.
Vulnerability class: Broken Authentication
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.024 (84.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: +0.000
Affected products
- Omniauth Saml
- Omniauth Omnitauth-Saml — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations (Technical Description, Exploit, Third Party Advisory)
- www.kb.cert.org/vuls/id/475445 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-11430?
- CVE-2017-11430 is a high-severity vulnerability in Omniauth Saml, classified under Improper Authentication. CVSS score: 7.7/10. Published 2019-04-17.
- How severe is CVE-2017-11430?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2017-11430 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.