CVE-2023-25000

Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations

Published Mar 30, 2023 CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-1119 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.
Github GHSA Github GHSA GHSA-vq4h-9ghm-qmrr HashiCorp Vault's implementation of Shamir's secret sharing vulnerable to cache-timing attacks
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HashiCorp
Published
Updated
Feb 13, 2025, 4:44 PM
Reserved
Feb 1, 2023, 5:54 PM
Status
Modified
Published
Mar 30, 2023, 1:15 AM
Modified
Jun 17, 2026, 5:40 AM
Severity
Moderate
Public date
Mar 30, 2023, 12:00 AM