CVE-2008-5522
HighSummary
AVG Anti-Virus w wersji 8.0.0.161, używając Internet Explorer 6 lub 7, pozwala zdalnym atakującym na obejście wykrywania złośliwego oprogramowania w dokumencie HTML. Możliwe jest to poprzez umieszczenie nagłówka MZ na początku oraz modyfikację nazwy pliku, aby nie miała rozszerzenia, miała rozszerzenie .txt lub .jpg.
Risk Assessment
Organizacja może być narażona na ataki z wykorzystaniem złośliwego oprogramowania, które nie zostanie wykryte przez AVG Anti-Virus, co może prowadzić do kompromitacji systemów i danych.
Recommendation
Zaleca się aktualizację oprogramowania AVG Anti-Virus 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)
AVG Anti-Virus 8.0.0.161, 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.