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Sun Java Runtime Environment External XML Entities Security Bypass

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Release Date:  2008-02-01    Last Update:  2008-02-07    Views:  31,978

Secunia Advisory SA28746

Where:

From remote

Impact:

Security Bypass

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Sun has acknowledged a security issue in Sun Java Runtime Environment (JRE), which can be exploited by malicious people to bypass certain security restrictions.

The security issue is caused due to the JRE processing external XML entity references even though the "external general entities" property is set to FALSE. This can be exploited to e.g. access certain URLs or cause a DoS (Denial of Service) via malicious XML documents.

Successful exploitation requires that malicious XML data is processed within a trusted applet or Java Web Start application.

The security issue is reported in Sun JDK and JRE 6 Update 3 and earlier. Sun JDK and JRE 5.0, and SDK and JRE 1.4.x and 1.3.x are reportedly not affected.


Solution:
Update to JDK or JRE 6 Update 4 or later.

Further details available to Secunia VIM customers

Provided and/or discovered by:
The vendor credits Chris Evans and Johannes Henkel, Google Security Team.

Original Advisory:
Sun:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-231246-1

Chris Evans:
http://scary.beasts.org/security/CESA-2007-002.html

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 Runtime Environment External XML Entities Security Bypass

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