HashiCorp Vault's implementation of Shamir's secret sharing vulnerable to cache-timing attacks
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-25000US | medium4.7 | — | ||
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… | ||||
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references
External citations — patches, advisories, analysis.
- https://discuss.hashicorp.com/t/hcsec-2023-10-vault-vulnerable-to-cache-timing-attacks-during-seal-and-unseal-operations/52078WEB
- https://github.com/hashicorp/vaultPACKAGE
- https://github.com/hashicorp/vault/pull/19495WEB
- https://nvd.nist.gov/vuln/detail/CVE-2023-25000ADVISORY
- https://security.netapp.com/advisory/ntap-20230526-0008WEB
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