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Winamp Skin File Arbitrary Code Execution Vulnerability
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Secunia Advisory:
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SA12381
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Release Date:
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2004-08-25
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Last Update:
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2004-09-06
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Popularity:
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110,081 views
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Critical:
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Extremely critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | WinAMP 3.x
Winamp 5.x
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| CVE reference: | CVE-2004-0820
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Description:
A vulnerability has been reported in Winamp, which can be exploited by malicious people to compromise a user's system.
The problem is caused due to insufficient restrictions on Winamp skin zip files (.wsz). This can e.g. be exploited by a malicious website using a specially crafted Winamp skin to place and execute arbitrary programs. With Internet Explorer this can be done without user interaction.
An XML document in the Winamp skin zip file can reference a HTML document using the "browser" tag and get it to run in the "Local computer zone". This can be exploited to run an executable program embedded in the Winamp skin file using the "object" tag and the "codebase" attribute.
NOTE: The vulnerability is reportedly being exploited in the wild.
The vulnerability has been confirmed on a fully patched system with Winamp 5.04 using Internet Explorer 6.0 on Microsoft Windows XP SP1.
Solution:
Update to version 5.05.
http://www.winamp.com/player/
Provided and/or discovered by:
Discovered by:
"Silent"
Reported by:
K-OTik.COM Security Survey Team
Changelog:
2004-08-26: Updated "credit" section.
2004-08-28: Vendor issues fixed version. Updated "Solution" section.
2004-09-06: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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