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Insecure Library Loading
Extremely critical

Winamp Skin File Arbitrary Code Execution Vulnerability

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Release Date:  2004-08-25    Last Update:  2004-09-06    Views:  128,682

Secunia Advisory SA12381

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

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.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Discovered by:
"Silent"

Reported by:
K-OTik.COM Security Survey Team

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Winamp Skin File Arbitrary Code Execution Vulnerability

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