This is the check_cups
Nagios plugin, available e.g. in /usr/lib/nagios/plugins/
. The read file content is limited to the first line.
It reads data from files, it may be used to do privileged reads or disclose files outside a restricted file system.
LFILE=file_to_read
check_cups --extra-opts=@$LFILE
If the binary is allowed to run as superuser by sudo
, it does not drop the elevated privileges and may be used to access the file system, escalate or maintain privileged access.
LFILE=file_to_read
sudo check_cups --extra-opts=@$LFILE