/validate_suid.sh Secret
Created
February 25, 2021 00:55
Test Case Generator - setuid/setgid detection
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| #!/usr/bin/env bash | |
| set -e | |
| PORTBASE=/usr/ports | |
| PORT=graphics/feh | |
| PORT_BINARY=bin/feh | |
| FILE_USERS=('' root nobody) | |
| FILE_GROUPS=('' root nogroup) | |
| FILE_STICKY=('' $(seq 0 2 6)) | |
| FILE_MODES=({0..7}{0..7}{0..7}) | |
| #FILE_STICKY=( $(printf '%s\n' "${FILE_STICKY[@]}" | tail -r | tr '\n' ' '; echo) ) | |
| #FILE_MODES=( $(printf '%s\n' "${FILE_MODES[@]}" | tail -r | tr '\n' ' '; echo) ) | |
| retry() { until sh -c "${@}"; do :; done; } | |
| should_trigger() { | |
| if grep -qe 's' <(stat -f '%Sp' "/usr/local/${PORT_BINARY}"); then | |
| return 1 | |
| else | |
| return 0 | |
| fi | |
| } | |
| for user in "${FILE_USERS[@]}"; do | |
| for group in "${FILE_GROUPS[@]}"; do | |
| for sticky in "${FILE_STICKY[@]}"; do | |
| for mode in "${FILE_MODES[@]}"; do | |
| install_log="$(mktemp)" | |
| pkg_filemode_annotation="@(${user},${group},${sticky}${mode})" | |
| sed -i "" -e "s|^.*${PORT_BINARY}\$|${pkg_filemode_annotation} ${PORT_BINARY}|" "${PORTBASE}/${PORT}/pkg-plist" | |
| retry "make -dl -C \"${PORTBASE}/${PORT}\" deinstall" >&2 | |
| retry "make -dl -C \"${PORTBASE}/${PORT}\" clean" >&2 | |
| retry "make -dl -C \"${PORTBASE}/${PORT}\" install" | tee "${install_log}" >&2 | |
| if grep -qe 'execute with increased privileges' <(cat "${install_log}" | tr '\n' ' ' | sed -e 's/ */ /g'); then | |
| triggered="1" | |
| else | |
| triggered="0" | |
| fi | |
| if [ "$(should_trigger)" != "${triggered}" ]; then | |
| result="PASS" | |
| else | |
| result="FAIL" | |
| fi | |
| printf "%s: %s - %s - %s\n" "${result}" "${pkg_filemode_annotation}" "$(stat -f '%Sp' "/usr/local/${PORT_BINARY}")" "$({ [ ${triggered} -eq 1 ] && echo triggered; } || echo not triggered)" | |
| done | |
| done | |
| done | |
| done | |
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