CVE-2000-1072
iCal 2.1 Patch 2 installs many files with world-writeable permissions, which allows local users to modify the iCal configuration and execute arbitrary commands by replacing the iplncal.sh program with a Trojan horse.
Date published : 2001-01-22
http://www.atstake.com/research/advisories/2000/a100900-1.txt