Set root Ownership of BIND Directories

СреднийУровень 1Автоматическаяbind

Описание

All of the directories under which ISC BIND runs should be owned by root. Of course, any files created at run time by BIND will still be owned by named, and the run time files will need to be in a directory writable by the named group. The audit lists directories under $BIND_HOME and $RUNDIR not owned by root and requires none. $BIND_HOME is taken as the existing ones of /var/named (RHEL, including a chroot), /etc/bind and /var/cache/bind (Debian/Ubuntu) and $RUNDIR as /run/named; the runtime directories (dynamic, slaves, data, run, log, tmp, /var/cache/bind) are excluded where the benchmark excludes them.

Как проверяется

Метод проверки: Команда оболочки

shell

BH=''; for d in /var/named /etc/bind /var/cache/bind; do [ -d "$d" ] && BH="$BH $d"; done
[ -n "$BH" ] || { echo 'no BIND directory found'; exit 1; }
RUN=''; for d in /run/named /var/run/named; do [ -d "$d" ] && { RUN=$d; break; }; done
G='-group root'; U='-user root'; for a in named bind; do grep -q "^$a:" /etc/group 2>/dev/null && G="$G -o -group $a"; grep -q "^$a:" /etc/passwd 2>/dev/null && U="$U -o -user $a"; done
RT='^(/var/named(/chroot/var/named)?/(dynamic|slaves|data)|/var/named/chroot/(var/)?run/named|/var/named/chroot/var/log|/var/named/chroot/(var/)?tmp|/var/cache/bind|/run/named|/var/run/named)(/|$)'
out=$(find $BH $RUN -type d \! -user root -print 2>/dev/null) || exit 1
[ -z "$out" ] && echo compliant || { printf '%s\n' "$out" | head -n 20; echo 'directories not owned by root'; }

Ожидаемый вывод: compliant

Как исправляется

Метод исправления: Рекомендация или патч инфраструктуры

To correct the directory ownership, perform the following: find $BIND_HOME $RUNDIR -type d \! -user root | xargs chown root Note: it is important to remember that the run time files will need to be in a directory writable by the named group. Changing the directory ownership to root might cause permissions issues, if the group permissions are not writable.

Свойства

Операционные системы: Любая
Теги: binddnspermissions
Источник: CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 2.4 Set root Ownership of BIND Directories

Проверить этот хост

Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.

shell

tmaegis scan --target bind