Vulnerability Details CVE-2021-3196
An issue was discovered in Hitachi ID Bravura Security Fabric 11.0.0 through 11.1.3, 12.0.0 through 12.0.2, and 12.1.0. When using federated identity management (authenticating via SAML through a third-party identity provider), an attacker can inject additional data into a signed SAML response being transmitted to the service provider (ID Bravura Security Fabric). The application successfully validates the signed values but uses the unsigned malicious values. An attacker with lower-privilege access to the application can inject the username of a high-privilege user to impersonate that user.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 55.8%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.5
References
- https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user
- https://www.hitachi.com/hirt/hitachi-sec/2021/601.html
- https://www.hitachi.com/hirt/security/index.html
- https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user
- https://www.hitachi.com/hirt/hitachi-sec/2021/601.html
- https://www.hitachi.com/hirt/security/index.html
Products affected by CVE-2021-3196
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cpe:2.3:a:hitachi:id_bravura_security_fabric:*
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cpe:2.3:a:hitachi:id_bravura_security_fabric:12.1.0