CVE-2008-3477
HighSummary
Microsoft Excel 2000 SP3, 2002 SP3 oraz 2003 SP2 i SP3 nieprawidłowo waliduje dane w pamięci podręcznej wydajności VBA podczas przetwarzania dokumentu Office z osadzonym obiektem. To pozwala zdalnym atakującym na wykonanie dowolnego kodu poprzez plik Excel zawierający spreparowaną wartość, co prowadzi do przepełnień bufora w stercie, przepełnień całkowitych, błędów indeksu tablicy oraz uszkodzenia pamięci.
Risk Assessment
Wykorzystanie tej podatności może prowadzić do zdalnego wykonania kodu, co stwarza poważne zagrożenie dla integralności i poufności danych w organizacji. Atakujący mogą uzyskać pełną kontrolę nad systemem ofiary.
Recommendation
Zaleca się aktualizację Microsoft Excel do najnowszej wersji, która zawiera poprawki bezpieczeństwa. Dodatkowo, należy ograniczyć otwieranie plików Excel z nieznanych źródeł.
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Original NVD description (English source)
Microsoft Excel 2000 SP3, 2002 SP3, and 2003 SP2 and SP3 does not properly validate data in the VBA Performance Cache when processing an Office document with an embedded object, which allows remote attackers to execute arbitrary code via an Excel file containing a crafted value, leading to heap-based buffer overflows, integer overflows, array index errors, and memory corruption, aka "Calendar Object Validation Vulnerability."