CVE-2020-12676
CRITICAL 9.1EPSS 2.9%
FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".
- CVSS v3.1
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS v2.0
- 6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N - EPSS
- 2.91% chance of exploitation in the next 30 days, 86th percentile
- Published
- 2020-10-02
- Updated
- 2024-08-04
Proof-of-concept exploits (2)
- http://packetstormsecurity.com/files/159454/FusionAuth-SAMLv2-0.2.3-Message-Forging.html
- http://seclists.org/fulldisclosure/2020/Oct/1