Check Point Advisories

Sun Java Web Start Splashscreen PNG Processing Buffer Overflow (CVE-2009-1097)

Check Point Reference: CPAI-2009-345
Date Published: 14 Jan 2010
Severity: High
Last Updated: Sunday 14 February, 2016
Source:
Industry Reference:CVE-2009-1097
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Sun Java Web Start is a component of the Java 2 Runtime Environment (JRE). It facilitates network deployment of applications developed with the Java programming language. This component enables stand-alone Java applications to be downloaded from a remote network location and run on a target machine. Java application has the same security restrictions running inside Java Web Start as it would have if it was running as a Java applet. A heap-based buffer overflow vulnerability exists in Sun Microsystems' Java Web Start (JWS). The flaw is due to a boundary error when displaying a customized splash screen PNG image. A remote attacker may exploit this vulnerability by enticing the target user to visit a malicious web page. Successful attack can allow for arbitrary code injection and execution with the privileges of the target user. In case of an attack where code injection is not successful, the Java Web Start application will terminate unexpectedly. In case of a more sophisticated attack where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. In such a case, the injected code will be executed within the context of the currently logged in user.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Sun Java Web Start Splashscreen PNG Processing Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Content Protection Violation.
Attack Information:  Sun Java Web Start Splashscreen PNG processing buffer overflow

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