‘Sun Java Runtime Environment Mutable InetAddress Socket Policy Violation Vulnerability’

Summary

This vulnerability allows remote attackers to violate security policies on vulnerable installations of Sun Java Runtime.’

Credit:

‘The information has been provided by Sami Koivu.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-10-055/


Details

Vulnerable Systems:
Sun Microsystems Java Runtime Environment (JRE)

User interaction is required to exploit this vulnerability in that the target must run a malicious applet.

The specific flaw allows malicious applets to connect to network addresses other than the originating applet and client IPs. A handcrafted applet can override compile time checks to prevent compilation of a mutable InetAddress subclass. This results in the ability to circumvent the Applet SecurityManager restictions.

Patch Availability:
Sun Microsystems has issued an update to correct this vulnerability. More details can be found at:
http://www.oracle.com/technology/deploy/security/critical-patch-updates/javacpumar2010.html

CVE Information:
CVE-2010-0095

Disclosure Timeline:
2009-10-21 – Vulnerability reported to vendor
2010-04-05 – Coordinated public release of advisory’

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