Full Disclosure mailing list archives

Yahoo messenger file extension spoof vulnerability


From: Ivan Ivan <ivancool2003 () yahoo com ar>
Date: Fri, 4 Aug 2006 06:34:22 +0000 (GMT)

Hi, i discover a possible file name extension spoofing in yahoo messenger 8.0.0.863 (lastest),obviously this requires 
that the option "Hide extension for known file types" is enabled in Windows, you need to send a file with this name for 
example: Annakournikova and her friends.jpg€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€.exe or 
Trojan.txt€€€€€€€€€€€€€€€€.exe Info.txt€€€€€€€€€€€€€€.exe The € characters hide the extension.
                
---------------------------------
 Preguntá. Respondé. Descubrí.
 Todo lo que querías saber, y lo que ni imaginabas,
 está en Yahoo! Respuestas (Beta).
 Probalo ya! 
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