CVE-2018-25217
HighSummary
PDF Explorer w wersji 1.5.66.2 zawiera podatność na przepełnienie bufora w obsłudze wyjątków strukturalnych (SEH), która pozwala lokalnym atakującym na wykonanie dowolnego kodu poprzez nadpisanie rekordów SEH złośliwymi danymi. Atakujący mogą stworzyć ładunek wykorzystujący przepełnienie bufora, skoki NSEH oraz łańcuchy gadżetów ROP, które są wykonywane podczas przetwarzania złośliwego wejścia w polu etykiety w oknie ustawień pól niestandardowych.
Risk Assessment
Podatność ta stwarza poważne ryzyko dla organizacji, umożliwiając lokalnym atakującym uruchomienie złośliwego kodu, co może prowadzić do utraty danych lub przejęcia kontroli nad systemem. W przypadku wykorzystania tej luki, atakujący mogą uzyskać dostęp do wrażliwych informacji lub zainstalować dodatkowe złośliwe oprogramowanie.
Recommendation
Zaleca się aktualizację PDF Explorer do najnowszej wersji, która eliminuje tę podatność. Dodatkowo, należy ograniczyć dostęp do aplikacji tylko dla zaufanych użytkowników oraz monitorować systemy pod kątem podejrzanej aktywności.
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Original NVD description (English source)
PDF Explorer 1.5.66.2 contains a structured exception handler (SEH) overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH records with malicious data. Attackers can craft a payload with buffer overflow, NSEH jump, and ROP gadget chains that execute when the Custom fields settings dialog processes the malicious input in the Label field.

