🛡️ CVE-2023-43637
🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-321 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Due to the implementation of "deriveVaultKey", prior to version 7.10, the generated vault key would always have the last 16 bytes predetermined to be "arfoobarfoobarfo". This issue happens because "deriveVaultKey" calls "retrieveCloudKey" (which will always return "foobarfoobarfoobarfoobarfoobarfo" as the key), and then merges the 32byte randomly generated key with this key (by takeing 16bytes from each, see "mergeKeys"). This makes the key a lot weaker. This issue does not persist in devices that were initialized on/after version 7.10, but devices that were initialized before that and updated to a newer version still have this issue. Roll an update that enforces the full 32bytes key usage.

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE CWE-321
Public Exploit ✅ No
Source NVD
Published 2023-09-21
Updated 2026-06-15
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
eve — 7.10
github.com/lf-edge/eve — —

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