Auth bypass in Wizkunde Samlbase
CVE-2018-5387
Wizkunde SAMLBase 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 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.017 (75.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Wizkunde Samlbase — versions unspecified
Weakness classification (CWE)
References
- duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations (Exploit, Third Party Advisory)
- www.kb.cert.org/vuls/id/475445 (US Government Resource, Third Party Advisory, third-party-advisory)
- github.com/GoGentoOSS/SAMLBase/issues/3 (Patch, Third Party Advisory, Issue Tracking)
- github.com/GoGentoOSS/SAMLBase/commit/482cdf8c090e0f1179073034ebcb609ac7c3f5b3 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5387?
- CVE-2018-5387 is a high-severity vulnerability in Wizkunde Samlbase, classified under Improper Authentication. CVSS score: 7.5/10. Published 2018-07-24.
- How severe is CVE-2018-5387?
- High severity. CVSS v3 base score is 7.5 out of 10.