CVE-2006-0617

Vulnerability

Multiple unspecified vulnerabilities in the Sun Java Reflection API, affecting JDK and JRE 5.0 Update 5 and earlier, as well as SDK and JRE 1.4.2_09 and earlier and 1.3.1_17 and earlier, allow untrusted Java applets to bypass sandbox security restrictions. These are the fifth, sixth, and seventh issues identified by the vendor, involving reflection APIs that can be abused to escalate privileges [2][3].

Exploitation

An attacker must convince a user to run a specially crafted Java applet, typically by hosting it on a website or embedding it in a web page. No authentication is required; the applet runs in the user's browser with Java support. The applet uses the reflection API to escape the sandbox and gain elevated privileges [2][3].

Impact

Successful exploitation allows a remote, unauthenticated attacker to execute arbitrary code with the privileges of the user running the applet. This can lead to full compromise of the user's system, including access to local files, arbitrary network connections, and execution of malicious code [2][3].

Mitigation

Sun addressed these issues in JDK and JRE 5.0 Update 6 and later, SDK and JRE 1.4.2_10 and later, and SDK and JRE 1.3.1_17 and later. Users should upgrade to the latest versions. Gentoo Linux provides specific upgrade instructions via emerge commands [3]. No workaround is available; upgrading is the only mitigation [2].