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Sun Java Predictable File Location Weakness
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Secunia Advisory:
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SA12043
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Release Date:
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2004-07-12
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Popularity:
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11,266 views
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Critical:
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Not critical
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Impact:
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Unknown
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Sun Java JRE 1.1.x
Sun Java JRE 1.2.x
Sun Java JRE 1.3.x
Sun Java JRE 1.4.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A weakness has been reported in Sun Java, allowing malicious websites to write arbitrary content to a file with an easily guessable name.
The problem is that Sun Java creates a temporary file with the contents of the array passed to the "Font.createFont" method. A specially crafted array may also cause the Java VM (Virtual Machine) to crash.
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.
A PoC (Proof of Concept) exploit has been published, which:
1) Uses the weakness in Sun Java to create a temporary file.
2) Exploits a file enumeration vulnerability to find the name of the temporary file (100,000 possible combinations).
SA10820
3) Exploits a Cross-Zone vulnerability and uses the inherently insecure Windows "shell:" functionality:
SA11793
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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