CVE-2023-4680

2024-08-2707:39:22

redhat.com

access.redhat.com

hashicorp vault

vault enterprise

transit secrets engine

nonce specification

decryption

subkey derivation

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

AI Score

6.8

Confidence

Low

EPSS

0.001

Percentile

25.8%

JSON

A flaw was found in HashiCorp Vault and Vault Enterprise, where the 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 the transit secrets engine without convergent encryption.