Note: This is an archival copy of Security Sun Alert 263409 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1020708.1.
Date of Resolved Release
Security vulnerabilities with the proxy mechanism implementation in the Java Runtime Environment (JRE) may lead to escalation of privileges:
A security vulnerability in the Java Runtime Environment SOCKS proxy implementation may allow an untrusted applet or Java Web Start application to determine the username of the user running the applet or application.
A second vulnerability in the Java Runtime Environment proxy mechanism implementation may allow an untrusted applet or Java Web Start application to obtain browser cookies and leverage those cookies to hijack sessions.
A security vulnerability in the Java Runtime Environment proxy mechanism implementation may allow an untrusted applet or Java Web Start application to make non-authorized socket or URL connections to hosts other than the origin host.
Sun acknowledges, with thanks, Gregory Fleischer for bringing the first two issues to our attention.
2. Contributing Factors
These issues can occur in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:
To determine the default version of the JRE that Internet Explorer uses, visit the URL:
Java(TM) Platform SE 6 U13In this example, the version of the JRE that the browser uses is 6 Update 13.
There are no reliable symptoms that would indicate the described issues have been exploited.
There are no workarounds for these issues. Please see the Resolution section below.
These issues are addressed in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:
Note: When installing a new version of the product from a source other than a Solaris patch, it is recommended that the old affected versions be removed from your system. To remove old affected versions on the Windows platform, please see:
For more information on Security Sun Alerts, see 1009886.1.
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Java Platform, Standard Edition 6 (Java SE 6)
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