CVE-2021-25667
HighCVSS 8.8Summary
Zidentyfikowano podatność w urządzeniach RUGGEDCOM RM1224, SCALANCE M-800, SCALANCE S615 oraz innych, która dotyczy przepełnienia bufora na stosie w obsłudze ramek STP BPDU. Może to umożliwić zdalnemu atakującemu wywołanie stanu odmowy usługi lub potencjalnie zdalne wykonanie kodu.
Risk Assessment
Podatność ta stwarza poważne ryzyko dla organizacji, ponieważ może prowadzić do przerwy w działaniu usług lub nieautoryzowanego dostępu do systemów. Wymaga to szczególnej uwagi, zwłaszcza w kontekście aktywnej funkcji nasłuchu na urządzeniach.
Recommendation
Zaleca się aktualizację urządzeń do najnowszych wersji oprogramowania, które eliminują tę podatność. Dodatkowo, warto rozważyć wyłączenie funkcji pasywnego nasłuchu, jeśli nie jest to konieczne.
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Original NVD description (English source)
A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

