IBM Lotus Notes 8 for Linux before 8.0.1 uses (1) unspecified weak permissions for the installation kit obtained through a Notes 8 download and (2) 0777 permissions for the installdata file that is created by setup.sh, which allows local users to gain privileges via a Trojan horse file.
http://www.vupen.com/english/advisories/2007/4037
http://www-1.ibm.com/support/docview.wss?uid=swg21289273
http://securitytracker.com/id?1019009