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Insecure Library Loading
Not critical

Sun Java Plugin Predictable File Location Weakness

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Release Date:  2005-02-08    Last Update:  2005-02-21    Views:  17,149

Secunia Advisory SA11070

Where:

From remote

Impact:

Unknown

Solution Status:

Unpatched

CVE Reference(s):

Description


Secunia Research has discovered a weakness in Sun Java Plugin, allowing malicious web sites to write arbitrary content to a file with a predictable name.

The problem is that the plugin creates temporary files for class files using a file name which becomes predictable when referenced using the old 8dot3 file schema (FAT16/DOS support).

The temporary file creation in itself is not a vulnerability and should not pose any risk to the system. However, combined with certain Microsoft Internet Explorer functionality and vulnerabilities this can be exploited to compromise a vulnerable system.

The weakness has been confirmed in version 1.5.0 (build 1.5.0_01-b08). Other versions may also be affected.


Solution:
Change the default directory for Temporary Internet Files (this may affect functionality):

Further details available to Secunia VIM customers

Provided and/or discovered by:
Andreas Sandblad, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2004-7/

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: Sun Java Plugin Predictable File Location Weakness

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