hashicorp/vault · Security
HashiCorp Vault's implementation of Shamir's secret sharing vulnerable to cache-timing attacks
- GHSA ID
- GHSA-vq4h-9ghm-qmrr
- CVE ID
- CVE-2023-25000
- Severity
- medium
- Published
- Updated
- CVSS
- 4.7 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 4.7 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Description
HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.
CWEs
- CWE-203 · Observable Discrepancy
- CWE-208 · Observable Timing Discrepancy
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-25000 ↗
- https://discuss.hashicorp.com/t/hcsec-2023-10-vault-vulnerable-to-cache-timing-attacks-during-seal-and-unseal-operations/52078 ↗
- https://security.netapp.com/advisory/ntap-20230526-0008/ ↗
- https://github.com/hashicorp/vault/pull/19495 ↗
- https://github.com/advisories/GHSA-vq4h-9ghm-qmrr ↗