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CVE-2023-43637

Estado: ModificadaAlta (7.8)—

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.

Leer descripción completaMostrar menos

Roll an update that enforces the full 32bytes key usage.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Lfedge — EVE

CWE

Referencias

JSON original (NVD)

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      "value": "\nDue to the implementation of \"deriveVaultKey\", prior to version 7.10, the generated vault key\nwould always have the last 16 bytes predetermined to be \"arfoobarfoobarfo\".\n\nThis issue happens because \"deriveVaultKey\" calls \"retrieveCloudKey\" (which will always\nreturn \"foobarfoobarfoobarfoobarfoobarfo\" as the key), and then merges the 32byte\nrandomly generated key with this key (by takeing 16bytes from each, see \"mergeKeys\").\n\nThis makes the key a lot weaker.\n\nThis issue does not persist in devices that were initialized on/after version 7.10, but devices\nthat were initialized before that and updated to a newer version still have this issue.\n\n\n\nRoll an update that enforces the full 32bytes key usage.\n\n\n\n\n\n\n"
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  "lastModified": "2026-06-17T06:26:07.780",
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