Advisory Details

April 5th, 2010

Sun Java Runtime Environment Mutable InetAddress Socket Policy Violation Vulnerability

ZDI-10-055
ZDI-CAN-603

CVE ID CVE-2010-0095
CVSS SCORE 10.0, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Sun Microsystems
AFFECTED PRODUCTS Java Runtime
VULNERABILITY DETAILS

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

VENDOR RESPONSE 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
DISCLOSURE TIMELINE
  • 2009-10-21 - Vulnerability reported to vendor
  • 2010-04-05 - Coordinated public release of advisory
CREDIT Sami Koivu
BACK TO ADVISORIES