mirror of
https://github.com/docker/docker-bench-security.git
synced 2025-01-18 16:22:33 +01:00
263 lines
6.7 KiB
Bash
263 lines
6.7 KiB
Bash
#!/bin/sh
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check_4() {
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logit "\n"
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id_4="4"
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desc_4="Container Images and Build File"
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check_4="$id_4 - $desc_4"
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info "$check_4"
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startsectionjson "$id_4" "$desc_4"
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}
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# 4.1
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check_4_1() {
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id_4_1="4.1"
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desc_4_1="Ensure a user for the container has been created"
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check_4_1="$id_4_1 - $desc_4_1"
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starttestjson "$id_4_1" "$desc_4_1"
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totalChecks=$((totalChecks + 1))
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# If container_users is empty, there are no running containers
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if [ -z "$containers" ]; then
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info "$check_4_1"
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info " * No containers running"
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resulttestjson "INFO" "No containers running"
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currentScore=$((currentScore + 0))
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else
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# We have some containers running, set failure flag to 0. Check for Users.
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fail=0
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# Make the loop separator be a new-line in POSIX compliant fashion
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set -f; IFS=$'
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'
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root_containers=""
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for c in $containers; do
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user=$(docker inspect --format 'User={{.Config.User}}' "$c")
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if [ "$user" = "User=0" ] || [ "$user" = "User=root" ] || [ "$user" = "User=" ] || [ "$user" = "User=[]" ] || [ "$user" = "User=<no value>" ]; then
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# If it's the first container, fail the test
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if [ $fail -eq 0 ]; then
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warn "$check_4_1"
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warn " * Running as root: $c"
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root_containers="$root_containers $c"
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fail=1
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else
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warn " * Running as root: $c"
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root_containers="$root_containers $c"
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fi
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fi
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done
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# We went through all the containers and found none running as root
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if [ $fail -eq 0 ]; then
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pass "$check_4_1"
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resulttestjson "PASS"
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currentScore=$((currentScore + 1))
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else
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resulttestjson "WARN" "running as root" "$root_containers"
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currentScore=$((currentScore - 1))
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fi
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fi
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# Make the loop separator go back to space
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set +f; unset IFS
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}
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# 4.2
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check_4_2() {
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id_4_2="4.2"
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desc_4_2="Ensure that containers use only trusted base images"
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check_4_2="$id_4_2 - $desc_4_2"
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starttestjson "$id_4_2" "$desc_4_2"
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totalChecks=$((totalChecks + 1))
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note "$check_4_2"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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# 4.3
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check_4_3() {
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id_4_3="4.3"
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desc_4_3="Ensure that unnecessary packages are not installed in the container"
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check_4_3="$id_4_3 - $desc_4_3"
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starttestjson "$id_4_3" "$desc_4_3"
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totalChecks=$((totalChecks + 1))
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note "$check_4_3"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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# 4.4
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check_4_4() {
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id_4_4="4.4"
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desc_4_4="Ensure images are scanned and rebuilt to include security patches"
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check_4_4="$id_4_4 - $desc_4_4"
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starttestjson "$id_4_4" "$desc_4_4"
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totalChecks=$((totalChecks + 1))
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note "$check_4_4"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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# 4.5
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check_4_5() {
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id_4_5="4.5"
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desc_4_5="Ensure Content trust for Docker is Enabled"
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check_4_5="$id_4_5 - $desc_4_5"
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starttestjson "$id_4_5" "$desc_4_5"
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totalChecks=$((totalChecks + 1))
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if [ "x$DOCKER_CONTENT_TRUST" = "x1" ]; then
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pass "$check_4_5"
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resulttestjson "PASS"
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currentScore=$((currentScore + 1))
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else
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warn "$check_4_5"
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resulttestjson "WARN"
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currentScore=$((currentScore - 1))
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fi
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}
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# 4.6
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check_4_6() {
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id_4_6="4.6"
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desc_4_6="Ensure that HEALTHCHECK instructions have been added to container images"
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check_4_6="$id_4_6 - $desc_4_6"
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starttestjson "$id_4_6" "$desc_4_6"
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totalChecks=$((totalChecks + 1))
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fail=0
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no_health_images=""
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for img in $images; do
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if docker inspect --format='{{.Config.Healthcheck}}' "$img" 2>/dev/null | grep -e "<nil>" >/dev/null 2>&1; then
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if [ $fail -eq 0 ]; then
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fail=1
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warn "$check_4_6"
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fi
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imgName=$(docker inspect --format='{{.RepoTags}}' "$img" 2>/dev/null)
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if ! [ "$imgName" = '[]' ]; then
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warn " * No Healthcheck found: $imgName"
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no_health_images="$no_health_images $imgName"
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fi
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fi
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done
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if [ $fail -eq 0 ]; then
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pass "$check_4_6"
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resulttestjson "PASS"
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currentScore=$((currentScore + 1))
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else
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resulttestjson "WARN" "Images w/o HEALTHCHECK" "$no_health_images"
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currentScore=$((currentScore - 1))
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fi
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}
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# 4.7
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check_4_7() {
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id_4_7="4.7"
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desc_4_7="Ensure update instructions are not use alone in the Dockerfile"
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check_4_7="$id_4_7 - $desc_4_7"
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starttestjson "$id_4_7" "$desc_4_7"
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totalChecks=$((totalChecks + 1))
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fail=0
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update_images=""
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for img in $images; do
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if docker history "$img" 2>/dev/null | grep -e "update" >/dev/null 2>&1; then
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if [ $fail -eq 0 ]; then
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fail=1
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info "$check_4_7"
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fi
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imgName=$(docker inspect --format='{{.RepoTags}}' "$img" 2>/dev/null)
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if ! [ "$imgName" = '[]' ]; then
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info " * Update instruction found: $imgName"
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update_images="$update_images $imgName"
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fi
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fi
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done
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if [ $fail -eq 0 ]; then
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pass "$check_4_7"
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resulttestjson "PASS"
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currentScore=$((currentScore + 0))
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else
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resulttestjson "INFO" "Update instructions found" "$update_images"
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currentScore=$((currentScore + 0))
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fi
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}
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# 4.8
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check_4_8() {
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id_4_8="4.8"
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desc_4_8="Ensure setuid and setgid permissions are removed"
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check_4_8="$id_4_8 - $desc_4_8"
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starttestjson "$id_4_8" "$desc_4_8"
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totalChecks=$((totalChecks + 1))
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note "$check_4_8"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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# 4.9
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check_4_9() {
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id_4_9="4.9"
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desc_4_9="Ensure that COPY is used instead of ADD in Dockerfiles"
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check_4_9="$id_4_9 - $desc_4_9"
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starttestjson "$id_4_9" "$desc_4_9"
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totalChecks=$((totalChecks + 1))
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fail=0
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add_images=""
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for img in $images; do
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if docker history --format "{{ .CreatedBy }}" --no-trunc "$img" | \
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sed '$d' | grep -q 'ADD'; then
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if [ $fail -eq 0 ]; then
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fail=1
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info "$check_4_9"
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fi
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imgName=$(docker inspect --format='{{.RepoTags}}' "$img" 2>/dev/null)
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if ! [ "$imgName" = '[]' ]; then
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info " * ADD in image history: $imgName"
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add_images="$add_images $imgName"
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fi
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currentScore=$((currentScore + 0))
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fi
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done
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if [ $fail -eq 0 ]; then
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pass "$check_4_9"
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resulttestjson "PASS"
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currentScore=$((currentScore + 0))
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else
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resulttestjson "INFO" "Images using ADD" "$add_images"
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fi
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}
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# 4.10
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check_4_10() {
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id_4_10="4.10"
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desc_4_10="Ensure secrets are not stored in Dockerfiles"
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check_4_10="$id_4_10 - $desc_4_10"
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starttestjson "$id_4_10" "$desc_4_10"
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totalChecks=$((totalChecks + 1))
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note "$check_4_10"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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# 4.11
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check_4_11() {
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id_4_11="4.11"
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desc_4_11="Ensure only verified packages are installed"
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check_4_11="$id_4_11 - $desc_4_11"
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starttestjson "$id_4_11" "$desc_4_11"
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totalChecks=$((totalChecks + 1))
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note "$check_4_11"
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resulttestjson "NOTE"
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currentScore=$((currentScore + 0))
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}
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check_4_end() {
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endsectionjson
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}
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