CVE-2023-4680: Vault's Transit Secrets Engine Allowed Nonce Specified without Convergent Encryption
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2023-4680?
CVE-2023-4680 is a vulnerability in HashiCorp Vault and Vault Enterprise transit secrets engine that allowed authorized users to specify arbitrary nonces.
What is the severity of CVE-2023-4680?
CVE-2023-4680 has a severity keyword of 'medium' and a severity value of 6.8.
How does CVE-2023-4680 affect HashiCorp Vault?
CVE-2023-4680 affects HashiCorp Vault and Vault Enterprise versions 1.6.0 to 1.12.11, 1.13.0 to 1.13.7, and 1.14.0 to 1.14.3.
What is the remedy for CVE-2023-4680 in HashiCorp Vault?
The remedy for CVE-2023-4680 in HashiCorp Vault is to upgrade to version 1.14.3 (for versions 1.14.0 to 1.14.2), 1.13.7 (for versions 1.13.0 to 1.13.6), or 1.12.11 (for versions 1.6.0 to 1.12.10).
How can CVE-2023-4680 be exploited?
CVE-2023-4680 can be exploited by using the encrypt endpoint in combination with an offline attack to decrypt arbitrary ciphertext and potentially derive the authentication secrets.