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61 lines
2.6 KiB
61 lines
2.6 KiB
#!/bin/bash
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ENABLED=yes
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[[ ${ENABLED} == "yes" ]] || exit 0
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DEBUGMODE=no
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SELF_NAME="42-access-suid-sgid"
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unset ROOTFS; [[ -d /usr/lib/ublinux ]] || ROOTFS=.
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SOURCE=${ROOTFS}/usr/lib/ublinux/functions; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
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SOURCE=${ROOTFS}/usr/lib/ublinux/default; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
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debug_mode "$0" "$@"
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SYSCONF="${ROOTFS}/${SYSCONF}"
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SOURCE=${SYSCONF}/config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
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SOURCE=${SYSCONF}/security; [ -f ${SOURCE} ] && . ${SOURCE} 2>/dev/null
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exec_access_allowed_suid(){
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## Отключить влияние SUID бита на привилегии порождаемого процесса всем, кроме указанных в ACCESS_ALLOWED_SUID
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if [[ -n ${ACCESS_ALLOWED_SUID[@]} ]]; then
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for PATH_WORK_SUID in "${!ACCESS_ALLOWED_SUID[@]}"; do
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EXCLUDE_SUID=$(tr [[:space:]],\; $'\n' <<< ${ACCESS_ALLOWED_SUID[${PATH_WORK_SUID}]})
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[[ ${PATH_WORK_SUID} == 0 ]] && PATH_WORK_SUID="${ROOTFS}/usr/bin ${ROOTFS}/usr/local/bin ${ROOTFS}/usr/local/sbin ${ROOTFS}/home"
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find ${PATH_WORK_SUID} -type f -perm /u=s $(printf "! -name %s " ${EXCLUDE_SUID}) -exec chmod --quiet u-s {} +
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# find ${PATH_WORK_SUID} -type f -perm /u=s $(printf " -name %s " ${EXCLUDE_SUID})
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done
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fi
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}
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exec_access_allowed_sgid(){
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## Отключить влияние SGID бита на привилегии порождаемого процесса всем, кроме указанных в ACCESS_ALLOWED_SGID
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if [[ -n ${ACCESS_ALLOWED_SGID[@]} ]]; then
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for PATH_WORK_SGID in "${!ACCESS_ALLOWED_SGID[@]}"; do
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EXCLUDE_SGID=$(tr [[:space:]],\; $'\n' <<< ${ACCESS_ALLOWED_SGID[${PATH_WORK_SGID}]})
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[[ ${PATH_WORK_SGID} == 0 ]] && PATH_WORK_SGID="${ROOTFS}/usr/bin ${ROOTFS}/usr/local/bin ${ROOTFS}/usr/local/sbin ${ROOTFS}/home"
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find ${PATH_WORK_SGID} -type f -perm /g=s $(printf "! -name %s " ${EXCLUDE_SGID}) -exec chmod --quiet g-s {} +
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done
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fi
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}
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################
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##### MAIN #####
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################
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# Возможность подключить как source из любого скрипта и вызов встроенных функций
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if [[ ${0##*/} == ${SELF_NAME} && -z $@ ]]; then
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while read -r FUNCTION; do
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$"${FUNCTION##* }"
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done < <(declare -F | grep "declare -f exec_")
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elif [[ ${0##*/} == ${SELF_NAME} ]]; then
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# for FUNCTION in $@; do
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# declare -f ${FUNCTION} &>/dev/null && ${FUNCTION}
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# done
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while [[ $# -gt 0 ]]; do
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declare -f ${1} &>/dev/null && FUNCTION+="; ${1}" && shift || { FUNCTION+=" ${1}" && shift; }
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done
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eval ${FUNCTION#*; }
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else
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true
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fi
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