CVEvulnerability
CVE-2021-3196
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-347
Description
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.
Affected configurations
• hitachi id bravura security fabric (>= 11.0.0 <= 11.1.3)
• hitachi id bravura security fabric (>= 12.0.0 <= 12.0.2)
• hitachi id bravura security fabric 12.1.0
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user Vendor Advisory
- https://www.hitachi.com/hirt/hitachi-sec/2021/601.html Exploit, Vendor Advisory
- https://www.hitachi.com/hirt/security/index.html Vendor Advisory
- https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user Vendor Advisory
- https://www.hitachi.com/hirt/hitachi-sec/2021/601.html Exploit, Vendor Advisory
- https://www.hitachi.com/hirt/security/index.html Vendor Advisory