CVE-2023-4680

Vault's Transit Secrets Engine Allowed Nonce Specified without Convergent Encryption

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.

Categories

6.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 1.52% Top 20%
Vendor Advisory hashicorp.com
Affected: HashiCorp Vault
Affected: HashiCorp Vault Enterprise
Published at:
Updated at:

References

Link Tags
https://discuss.hashicorp.com/t/hcsec-2023-28-vault-s-transit-secrets-engine-allowed-nonce-specified-without-convergent-encryption/58249 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-4680?
CVE-2023-4680 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4680?
To fix CVE-2023-4680, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4680 being actively exploited in the wild?
It is possible that CVE-2023-4680 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4680?
CVE-2023-4680 affects HashiCorp Vault, HashiCorp Vault Enterprise.
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