The open source version of Open-Xchange 0.8.2 and earlier uses a static default username and password with a valid login shell in the initfile for the ldap-server, which allows remote attackers to access any server where the default has not been changed.
secunia.com/advisories/20323
securityreason.com/securityalert/1012
www.golem.de/0605/45407.html
www.open-xchange.org/bugzilla/show_bug.cgi?id=2815
www.securityfocus.com/archive/1/435198/100/0/threaded
www.securityfocus.com/bid/18115
www.vupen.com/english/advisories/2006/2037
exchange.xforce.ibmcloud.com/vulnerabilities/26761