CVE-2026-33631
HighSummary
ClearanceKit przechwytuje zdarzenia dostępu do systemu plików w macOS i egzekwuje polityki dostępu na poziomie procesów. W wersjach z gałęzi 4.1 i wcześniejszych, system rozszerzeń Endpoint Security egzekwował politykę dostępu do plików wyłącznie poprzez przechwytywanie zdarzeń ES_EVENT_TYPE_AUTH_OPEN, co pozwalało na obejście polityki FAA przez lokalnie działające procesy.
Risk Assessment
Brak przechwytywania siedmiu dodatkowych typów zdarzeń operacji na plikach stwarza ryzyko, że lokalne procesy mogą omijać skonfigurowane polityki dostępu, co może prowadzić do nieautoryzowanego dostępu do danych.
Recommendation
Zaleca się aktualizację do wersji 4.2 lub nowszej, która zawiera poprawki eliminujące tę podatność. Brak znanych obejść dla tej luki.
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Original NVD description (English source)
ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. In versions on the 4.1 branch and earlier, the opfilter Endpoint Security system extension enforced file access policy exclusively by intercepting ES_EVENT_TYPE_AUTH_OPEN events. Seven additional file operation event types were not intercepted, allowing any locally running process to bypass the configured FAA policy without triggering a denial. Commit a3d1733 adds subscriptions for all seven event types and routes them through the existing FAA policy evaluator. AUTH_RENAME and AUTH_UNLINK additionally preserve XProtect change detection: events on the XProtect path are allowed and trigger the existing onXProtectChanged callback rather than being evaluated against user policy. All versions on the 4.2 branch contain the fix. No known workarounds are available.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS