Vault and Vault Enterprise’s (“Vault”) login MFA rate limits could be bypassed and TOTP tokens could be reused. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Vault | Hashicorp | 1.10.0 (including) | 1.16.23 (excluding) |
| Vault | Hashicorp | 1.10.0 (including) | 1.20.1 (excluding) |
| Vault | Hashicorp | 1.17.0 (including) | 1.18.12 (excluding) |
| Vault | Hashicorp | 1.19.0 (including) | 1.19.7 (excluding) |
| Vault | Hashicorp | 1.20.0 (including) | 1.20.0 (including) |
Common protection mechanisms include:
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]