The org.apache.catalina.connector.Response.encodeURL method in Red Hat JBoss Web 7.1.x and earlier, when the tracking mode is set to COOKIE, sends the jsessionid in the URL of the first response of a session, which allows remote attackers to obtain the session id (1) via a man-in-the-middle attack or (2) by reading a log.

twiddle.sh in JBoss AS 5.0 and EAP 5.0 and earlier accepts credentials as command-line arguments, which allows local users to read the credentials by listing the process and its arguments.