CVE-2023-4680

Description

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.

How to fix CVE-2023-4680

To remediate CVE-2023-4680, upgrade the affected package to a fixed version below.

• —upgrade to 1.12.11 or later
• —upgrade to 1.12.11 or later
• —upgrade to 1.12.11 or later

Is CVE-2023-4680 being exploited?

Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• >= 1.6.0, < 1.12.11, >= 1.13.0, < 1.13.7, >= 1.14.0, < 1.14.3
• >= 1.6.0, < 1.12.11
• >= 1.6.0, < 1.12.11, >= 1.13.0, < 1.13.7, >= 1.14.0, < 1.14.3

CVSS scores

References (4)

• ADVISORYgithub.com/advisories/GHSA-v84f-6r39-cpfc
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-4680
• PATCHgithub.com/hashicorp/vault
• WEBdiscuss.hashicorp.com/t/hcsec-2023-28-vault-s-transit-secrets-engine-allowed-nonce-specified-without-convergent-encryption/58249