Package: init-system-helpers Version: 1.56+nmu1 Severity: normal The service commands seems to be able to run arbitrary commands given a relative path:
$ sudo service ../../bin/ls [ 6:25PM] bin dev home initrd.img.old lib32 libx32 media opt root sbin sys usr vmlinuz boot etc initrd.img lib lib64 lost+found mnt proc run srv tmp var vmlinuz.old $ sudo service ../../bin/echo hmmm [ 6:27PM] hmmm Absolute paths don't work though: $ sudo service /bin/ls [ 6:26PM] /bin/ls: unrecognized service Is this intentional? Is it useful? Is it a security risk? It makes it hard to delegate service access to sudo (although that may be a flawed idea in other ways). Hamish -- System Information: Debian Release: 10.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-10-amd64 (SMP w/12 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages init-system-helpers depends on: ii perl-base 5.28.1-6+deb10u1 init-system-helpers recommends no packages. init-system-helpers suggests no packages. Versions of packages init-system-helpers is related to: pn insserv <none> -- no debconf information