Yahoo! Messenger 8.0.0.863 - File Extension Spoofing

Author: ivancool2003
type: dos
platform: windows
port: 
date_added: 2006-08-04 
date_updated: 2013-09-17 
verified: 1 
codes:  
tags: 
aliases:  
screenshot_url:  
application_url: 

source: https://www.securityfocus.com/bid/19353/info

A vulnerability in Yahoo! Messenger allows remote attackers to spoof file extensions. This issue is due to a design error.

An attacker may leverage this issue to spoof downloaded filenames to unsuspecting users. This issue may lead to a compromise of the target computer as well as other consequences.

Yahoo! Messenger version 8.0.0.863 is reportedly affected; earlier versions may be affected as well.

Sample filenames and extensions have been provided:

example: Annakournikova and her friends.jpg~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@.exe Trojan.txt~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@.exe Info.txt~@~@~@~@~@~@~@~@~@~@~@~@~@~@.exe