blob: 31390c25ee61febc90f140485b8a96373e0242fb (
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#!/bin/sh
if [ $# -eq 0 ]; then
Display --indent 2 --text "${RED}Error: ${WHITE}Provide URL or file${NORMAL}"
Display --text " "; Display --text " "
ExitFatal
else
FILE=`echo $1 | egrep "^http|https"`
if [ ! "${FILE}" = "" ] ; then
CreateTempFile
TMP_FILE="${TEMP_FILE}"
Display --indent 2 --text "Downloading URL ${FILE} with wget"
wget -o ${TMP_FILE} ${FILE}
if [ $? -gt 0 ]; then
AUDIT_FILE="${TMP_FILE}"
else
if [ -f ${TMP_FILE} ]; then
rm -f ${TMP_FILE}
fi
Display --indent 2 --text "${RED}Error: ${WHITE}can not download file${NORMAL}"
ExitFatal
fi
else
if [ -f $1 ]; then
AUDIT_FILE="$1"
else
Display --indent 2 --text "File $1 does not exist"
ExitFatal
fi
fi
Display --indent 2 --text "File to audit = ${AUDIT_FILE}"
fi
#####################################################
#
##################################################################################################
#
InsertSection "Image"
PKGMGR=""
FIND=`grep "^FROM" ${AUDIT_FILE} | sed 's/ /:space:/g'`
for I in ${FIND}; do
IMAGE=`echo ${I} | sed 's/:space:/ /g' | awk '{ if ($1=="FROM") { print $2 }}'`
Display --indent 2 --text "Found image:" --result "${IMAGE}"
IS_UBUNTU=`echo ${IMAGE} | grep -i ubuntu`
if [ ! "${IS_DEBIAN}" = "" ]; then IMAGE="debian"; fi
if [ ! "${IS_FEDORA}" = "" ]; then IMAGE="fedora"; fi
if [ ! "${IS_UBUNTU}" = "" ]; then IMAGE="ubuntu"; fi
case ${IMAGE} in
"debian")
logtext "Image = Debian based"
PKGMGR="apt"
;;
"fedora*")
logtext " Image = Fedora based"
PKGMGR="yum"
;;
"ubuntu")
logtext " Image = Ubuntu based"
PKGMGR="apt"
;;
*)
Display --indent 2 --text "Unknown image" --result "" --color YELLOW
;;
esac
done
#
##################################################################################################
#
InsertSection "Basics"
FIND=`egrep "^MAINTAINER" ${AUDIT_FILE} | sed 's/ /:space:/g'`
if [ "${FIND}" = "" ]; then
ReportWarning "dockerfile" "L" "No maintainer found. Unclear who created this file."
else
MAINTAINER=`echo ${FIND} | sed 's/:space:/ /g' | awk '{ if($1=="MAINTAINER") { print }}'`
Display --indent 2 --text "Maintainer" --result "${MAINTAINER}"
fi
#
##################################################################################################
#
InsertSection "Software"
case $PKGMGR in
"apt")
FIND=`egrep "apt-get(.*) install" ${AUDIT_FILE}`
if [ ! "${FIND}" = "" ]; then
logtext "Found installation via apt-get"
else
logtext "No installations found via apt-get"
fi
;;
*)
logtext "Unknown package manager"
;;
esac
FIND=`egrep " (gcc|libc6-dev|make)" ${AUDIT_FILE} | grep -v "^#"`
if [ ! "${FIND}" = "" ]; then
ReportWarning "dockerfile" "L" "Possible development utilities found, which is not advised for production environment"
logtext "Details: ${FIND}"
fi
# SSH
FIND_OPENSSH=`grep openssh ${AUDIT_FILE}`
if [ ! "${FIND_OPENSSH}" = "" ]; then
Display --indent 2 --text "OpenSSH" --result "FOUND" --color RED
ReportSuggestion "dockerfile" "Don't use OpenSSH in container, use 'docker exec' instead"
fi
#
##################################################################################################
#
InsertSection "Downloads"
FILE_DOWNLOAD=0
logtext "Checking usage of cURL"
FIND_CURL=`grep curl ${AUDIT_FILE}`
if [ ! "${FIND_WGET}" = "" ]; then
Display --indent 4 --text "Download tool" --result "curl"
FILE_DOWNLOAD=1
fi
logtext "Checking usage of wget"
FIND_WGET=`grep wget ${AUDIT_FILE}`
if [ ! "${FIND_WGET}" = "" ]; then
Display --indent 4 --text "Download tool" --result "wget"
FILE_DOWNLOAD=1
fi
FIND=`grep "^ADD http" ${AUDIT_FILE}`
if [ ! "${FIND}" = "" ]; then
FILE_DOWNLOAD=1
ReportWarning "dockerfile" "L" "Found download of file via ADD. Unclear if the integrity of this file is checked, or file is signed"
logtext "Details: ${FIND}"
fi
if [ ${FILE_DOWNLOAD} -eq 1 ]; then
SSL_USED_FIND=`egrep "(https)" ${AUDIT_FILE}`
if [ ! "${SSL_USED_FIND}" = "" ]; then
SSL_USED="YES"
COLOR="GREEN"
else
SSL_USED="NO"
COLOR="RED"
ReportSuggestion "Use SSL downloads when possible to increase security (DNSSEC, HTTPS, validation of domain, avoid MitM)"
fi
Display --indent 2 --text "Integrity testing performed" --result "${SSL_USED}" --color ${COLOR}
HASHING_USED=`egrep "(sha1sum|sha256sum|sha512sum)" ${AUDIT_FILE}`
Display --indent 2 --text "Hashing" --result "${HASHING_USED}"
KEYS_USED=`egrep "(apt-key adv)" ${AUDIT_FILE}`
Display --indent 2 --text "Signing keys used" --result ${SSL_USED}
Display --indent 2 --text "All downloads properly checked" --result "?"
else
Display --indent 2 --text "No files seems to be downloaded in this Dockerfile"
fi
#
##################################################################################################
#
InsertSection "Permissions"
FIND=`grep -i "chmod 777" ${AUDIT_FILE}`
if [ ! "${FIND}" = "" ]; then
ReportWarning "dockerfile" "L" "Warning: chmod 777 found"
fi
#
##################################################################################################
#
# Removing temp file
logtext "Action: Removing temporary file ${TMP_FILE}"
if [ -f ${TMP_FILE} ]; then
rm -f ${TMP_FILE}
fi
# The End
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