CVE-2008-5541
HighSummary
Sophos Anti-Virus w wersji 4.33.0, przy użyciu Internet Explorer 6 lub 7, umożliwia zdalnym atakującym ominięcie wykrywania złośliwego oprogramowania w dokumencie HTML. Atakujący mogą to osiągnąć, umieszczając nagłówek MZ na początku oraz modyfikując nazwę pliku, aby miała brak rozszerzenia, rozszerzenie .txt lub .jpg.
Risk Assessment
Organizacja narażona jest na ryzyko infekcji złośliwym oprogramowaniem, które może nie zostać wykryte przez oprogramowanie antywirusowe. To może prowadzić do utraty danych lub naruszenia bezpieczeństwa 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)
Sophos Anti-Virus 4.33.0, 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.