Vault's Transit Secrets Engine Allowed Nonce Specified without Convergent Encryption
CVE-2023-4680

6.8MEDIUM

Key Information:

Vendor

Hashicorp
Status
Vault
Vault Enterprise
Vendor
CVE Published:
15 September 2023

What is CVE-2023-4680?

HashiCorp Vault and Vault Enterprise transit secrets engine allowed authorized users to specify arbitrary nonces, even with convergent encryption disabled. The encrypt endpoint, in combination with an offline attack, could be used to decrypt arbitrary ciphertext and potentially derive the authentication subkey when using transit secrets engine without convergent encryption. Introduced in 1.6.0 and fixed in 1.14.3, 1.13.7, and 1.12.11.

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Affected Version(s)

Vault 64 bit 1.14.0 < 1.14.3

Vault 64 bit 1.13.0 < 1.13.7

Vault 64 bit 1.12.0 < 1.12.11

References

https://discuss.hashicorp.com/t/hcsec-2023-28-vault-s-tra...

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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