An issue was discovered in Icinga2 before v2.12.0-rc1. The prepare-dirs script (run as part of the icinga2 systemd service) executes chmod 2750 /run/icinga2/cmd. /run/icinga2 is under control of an unprivileged user by default. If /run/icinga2/cmd is a symlink, then it will by followed and arbitrary files can be changed to mode 2750 by the unprivileged icinga2 user.
{ "binaries": [ { "binary_version": "2.13.2-1build2", "binary_name": "icinga2" }, { "binary_version": "2.13.2-1build2", "binary_name": "icinga2-bin" }, { "binary_version": "2.13.2-1build2", "binary_name": "icinga2-common" }, { "binary_version": "2.13.2-1build2", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.13.2-1build2", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.13.2-1build2", "binary_name": "vim-icinga2" } ] }
{ "binaries": [ { "binary_version": "2.14.2-1build2", "binary_name": "icinga2" }, { "binary_version": "2.14.2-1build2", "binary_name": "icinga2-bin" }, { "binary_version": "2.14.2-1build2", "binary_name": "icinga2-common" }, { "binary_version": "2.14.2-1build2", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.14.2-1build2", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.14.2-1build2", "binary_name": "vim-icinga2" } ] }
{ "binaries": [ { "binary_version": "2.14.5-1", "binary_name": "icinga2" }, { "binary_version": "2.14.5-1", "binary_name": "icinga2-bin" }, { "binary_version": "2.14.5-1", "binary_name": "icinga2-common" }, { "binary_version": "2.14.5-1", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.14.5-1", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.14.5-1", "binary_name": "vim-icinga2" } ] }
{ "binaries": [ { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-bin" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-classicui" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-common" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "icinga2-studio" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "libicinga2" }, { "binary_version": "2.4.1-2ubuntu1", "binary_name": "vim-icinga2" } ] }
{ "binaries": [ { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-bin" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-classicui" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-common" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "icinga2-studio" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "libicinga2" }, { "binary_version": "2.8.1-0ubuntu2", "binary_name": "vim-icinga2" } ] }
{ "binaries": [ { "binary_version": "2.11.2-1ubuntu3", "binary_name": "icinga2" }, { "binary_version": "2.11.2-1ubuntu3", "binary_name": "icinga2-bin" }, { "binary_version": "2.11.2-1ubuntu3", "binary_name": "icinga2-common" }, { "binary_version": "2.11.2-1ubuntu3", "binary_name": "icinga2-ido-mysql" }, { "binary_version": "2.11.2-1ubuntu3", "binary_name": "icinga2-ido-pgsql" }, { "binary_version": "2.11.2-1ubuntu3", "binary_name": "vim-icinga2" } ] }