CVE-2009-3866 Security feature bypass in n/a

Critical 9.3 Published 5 Nov 2009 Updated 7 Aug 2024

Remote attackers can execute arbitrary code by exploiting a security model flaw in Java Web Start Installer when removing extensions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2009-3866?

CVE-2009-3866 is a critical vulnerability in Sun Jdk, published on 5 Nov 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Java Web Start Installer in Sun Java SE in JDK and JRE 6 before Update 17 does not properly use security model permissions when removing installer extensions, which allows remote attackers to execute arbitrary code by modifying a certain JNLP file to have a URL field that points to an unintended trusted application, aka Bug Id 6872824.

Weakness: CWE-264

Which versions are affected by CVE-2009-3866?

It affects 2 products.

Products include Sun Jdk, Sun Jre.

How do I fix CVE-2009-3866?

Upgrade to a fixed version.

Is CVE-2009-3866 being exploited?

There is no known exploitation of CVE-2009-3866 in the wild and no public exploit code.

All Sun Jdk vulnerabilities

Sources

Also known as GHSA-768x-w4jc-f2gp.