Note: This is an archival copy of Security Sun Alert 240327 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1019510.1.
Sun Java System Web Proxy Server 4.0
Date of Resolved Release
Security vulnerability in the FTP subsystem of Sun Java System Web Proxy Server 4.0
A Security vulnerability in the FTP subsystem of Sun Java System Web Proxy Server 4.0 may allow a local or remote unprivileged user to prevent the proxy server from accepting new connections, resulting in a Denial of Service (DoS) to the proxy server.
Sun acknowledges, with thanks, Joxean Koret for bringing this issue to our attention.
2. Contributing Factors
This issues can occur in the following releases:
$ <ps_install>/bin/proxy/bin/proxyd -v(Where <ps_install> is the installation directory of the Proxy Server).
Should the described issue occur, Proxy server stops accepting new connections with the following error message in the proxy server instance's "access" log file:
[03/Mar/2008:02:10:35] failure (32372): HTTP3069: Error accepting
If this issue has been exploited on a server, it may be possible to recover from the Denial of Service (DoS) condition by restarting the server. This can be done by using the following command:
$<ps_install>/<ps_instance/restart(Where <ps_install> is the installation directory of the Proxy Server, and <ps_instance> is the Proxy Server instance directory).
This issue is addressed in the following releases:
For more information on Security Sun Alerts, see 1009886.1.
Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.
This solution has no attachment