CVE-2008-5535
HighSummary
Norman Antivirus w wersji 5.80.02, używając przeglądarki Internet Explorer 6 lub 7, pozwala zdalnym atakującym na ominięcie wykrywania złośliwego oprogramowania w dokumencie HTML. Możliwe jest to poprzez umieszczenie nagłówka MZ na początku oraz modyfikację nazwy pliku, aby nie miała rozszerzenia lub miała rozszerzenie .txt lub .jpg.
Risk Assessment
Organizacja może być narażona na ataki z wykorzystaniem złośliwego oprogramowania, które nie zostanie wykryte przez oprogramowanie antywirusowe, co może prowadzić do utraty danych lub kompromitacji systemów.
Recommendation
Zaleca się aktualizację oprogramowania antywirusowego do najnowszej wersji oraz monitorowanie i skanowanie dokumentów HTML pod kątem nietypowych nagłówków i rozszerzeń plików.
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Original NVD description (English source)
Norman Antivirus 5.80.02, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit.