A flaw was found in Spacewalk, as used in Red Hat Network Satellite. This open redirect vulnerability allows remote attackers to redirect users to arbitrary web sites by manipulating a URL in the url_bounce parameter. This can enable attackers to conduct phishing attacks, potentially leading to unauthorized information disclosure or credential theft.
https://www.redhat.com/archives/spacewalk-announce-list/2011-December/msg00000.html
https://bugzilla.redhat.com/show_bug.cgi?id=672167