mirror of https://github.com/CISOfy/lynis.git
486 lines
16 KiB
Bash
486 lines
16 KiB
Bash
#!/bin/sh
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#################################################################################
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#
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# Lynis
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# ------------------
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#
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# Copyright 2007-2013, Michael Boelen
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# Copyright 2007-2020, CISOfy
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#
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# Website : https://cisofy.com
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# Blog : http://linux-audit.com
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# GitHub : https://github.com/CISOfy/lynis
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#
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# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
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# welcome to redistribute it under the terms of the GNU General Public License.
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# See LICENSE file for usage of this software.
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#
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#################################################################################
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#
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# Parameter checks
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#
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#################################################################################
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#
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PARAMCOUNT=$#
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# Input validation on provided parameters and their arguments
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COUNT=0
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for I in "$@"; do
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COUNT=$((COUNT + 1))
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if ! SafeInput "${I}"; then
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echo "Execution of ${PROGRAM_NAME} stopped as we found unexpected input or invalid characters in argument ${COUNT}"
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echo "Do you believe this is in error? Let us know: ${PROGRAM_AUTHOR_CONTACT}"
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ExitFatal "Program execution stopped due to security measure"
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fi
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done
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# Parse arguments
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while [ $# -ge 1 ]; do
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case $1 in
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# Helpers first
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audit)
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CHECK_BINARIES=0
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RUN_HELPERS=1
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HELPER="audit"
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SKIP_PLUGINS=1
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RUN_TESTS=0
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if [ $# -gt 1 ]; then
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case $2 in
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"dockerfile")
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if [ $# = 2 ]; then
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echo "${RED}Error: ${WHITE}Missing file name or URL${NORMAL}"
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echo "Example: $0 audit dockerfile /path/to/Dockerfile"
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ExitFatal
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else
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shift; shift
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CHECK_BINARIES=1
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HELPER_PARAMS="$1"
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HELPER="audit_dockerfile"
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break
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fi
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;;
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"system")
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if [ $# -gt 2 ]; then
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if [ "$3" = "remote" ]; then
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#shift
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if [ $# -eq 3 ]; then
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echo "${RED}Error: ${WHITE}Missing remote location${NORMAL}"
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echo "Example: $0 audit system remote 192.168.1.100"
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ExitFatal
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else
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REMOTE_TARGET="$4"
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shift; shift; shift # shift out first three arguments
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EXTRA_PARAMS=""
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if [ ! "$1" = "" ]; then EXTRA_PARAMS=" $@"; fi
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REMOTE_COMMAND="./lynis audit system"
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echo ""
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echo " How to perform a remote scan:"
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echo " ============================="
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echo " Target : ${REMOTE_TARGET}"
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echo " Command : ${REMOTE_COMMAND}"
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HELPER="system_remote_scan"
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HELPER_PARAMS="$@"
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CHECK_BINARIES=0
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QUIET=1
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RUN_HELPERS=1
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SKIP_PLUGINS=1
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RUN_TESTS=0
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SHOW_PROGRAM_DETAILS=0
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break
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fi
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fi
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fi
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CHECK=1
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CHECK_BINARIES=1
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HELPER=""
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SKIP_PLUGINS=0
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RUN_TESTS=1
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shift
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;;
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*)
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echo "${RED}Error: ${WHITE}Need a target to audit${NORMAL}"
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echo " "
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echo "Examples:"
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echo "lynis audit dockerfile"
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echo "lynis audit system"
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ExitFatal
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;;
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esac
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else
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echo "${RED}Error: ${WHITE}Need a target to audit${NORMAL}"
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echo " "
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echo "Examples:"
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echo "lynis audit dockerfile"
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echo "lynis audit system"
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ExitFatal
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fi
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;;
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# Configure Lynis
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configure)
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CHECK_BINARIES=0
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RUN_HELPERS=1
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QUIET=1
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SKIP_PLUGINS=1
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RUN_TESTS=0
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SHOW_PROGRAM_DETAILS=0
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if [ $# -gt 0 ]; then shift; fi
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HELPER="configure"
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HELPER_PARAMS="$@"
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break
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;;
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# Generate data
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generate)
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CHECK_BINARIES=0
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HELPER="generate"
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LOGTEXT=0
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QUIET=1
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RUN_HELPERS=1
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RUN_TESTS=0
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RUN_UPDATE_CHECK=0
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SKIP_GETHOSTID=1
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SKIP_PLUGINS=1
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SKIP_VM_DETECTION=1
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SHOW_PROGRAM_DETAILS=0
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SHOW_TOOL_TIPS=0
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shift; HELPER_PARAMS="$@"
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break
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;;
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# Show Lynis details
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show)
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CHECK_BINARIES=0
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HELPER="show"
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LOGTEXT=0
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QUIET=1
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RUN_HELPERS=1
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RUN_TESTS=0
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RUN_UPDATE_CHECK=0
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SKIP_PLUGINS=1
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SHOW_PROGRAM_DETAILS=0
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SHOW_TOOL_TIPS=0
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shift; HELPER_PARAMS="$@"
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break
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;;
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update)
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CHECK_BINARIES=0
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RUN_HELPERS=1
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HELPER="update"
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QUIET=1
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SKIP_PLUGINS=1
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RUN_TESTS=0
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RUN_UPDATE_CHECK=0
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SHOW_PROGRAM_DETAILS=0
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SHOW_TOOL_TIPS=0
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if [ $# -gt 1 ]; then
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shift
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HELPER_PARAMS="$1"
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break
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else
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echo "${RED}Error: ${WHITE}Need a target for update${NORMAL}"
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echo " "
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echo "Examples:"
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echo "lynis update check"
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echo "lynis update info"
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ExitFatal
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fi
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;;
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# Perform just the upload
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"upload-only" | "only-upload")
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CHECK_BINARIES=1
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CREATE_REPORT_FILE=0
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#QUIET=1
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LOGTEXT=0
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RUN_HELPERS=0
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RUN_TESTS=0
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RUN_UPDATE_CHECK=0
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SKIP_PLUGINS=1
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SHOW_REPORT=0
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SHOW_TOOL_TIPS=0
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SHOW_PROGRAM_DETAILS=0
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UPLOAD_DATA=1
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if [ $# -gt 1 ]; then echo "No other parameters or options are allowed when using 'upload-only' command"; ExitFatal; fi
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;;
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# Assign auditor to report
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--auditor)
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shift
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AUDITORNAME=$1
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;;
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# Binary directories (useful for incident response)
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--bindirs | --bin-dirs)
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if [ $# -gt 1 ]; then
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shift
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DIRS="$1"
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for DIR in $1; do
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if [ ! -d ${DIR} ]; then
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echo "Invalid bindir '${DIR}' provided (does not exist)"
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exit 1
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fi
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done
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BIN_PATHS="${DIRS}"
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else
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echo "Need one or more directories (e.g. \"/mnt/cert/bin /mnt/cert/sbin\")"
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exit 1
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fi
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;;
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# Cronjob support
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--cron-job | --cronjob | --cron)
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CRONJOB=1
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CHECK=1; COLORS=0; NEVERBREAK=1 # Use some defaults ('audit system', -Q, no colors)
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RemoveColors
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;;
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# Perform tests with additional debugging information on screen
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--debug)
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DEBUG=1
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;;
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# Developer mode (more details when creating tests)
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--developer)
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DEVELOPER_MODE=1
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;;
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# DevOps mode (continuous integration)
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--devops)
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DEVOPS_MODE=1
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;;
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# Enable forensics mode (gather information from a mounted directory)
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--forensics)
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FORENSICS=1
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;;
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# View help
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--help | -h | "-?")
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VIEWHELP=1
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;;
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# Adjust default logfile location
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--logfile | --log-file)
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shift
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LOGFILE=$1
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;;
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# Don't use colors
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--no-colors | --nocolors | --no-colour | --nocolour)
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COLORS=0
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RemoveColors
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;;
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# Disable logging
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--no-log | --nolog)
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LOGFILE="/dev/null"
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;;
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# Skip execution of plugins
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--no-plugins | --noplugins | --skip-plugins)
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SKIP_PLUGINS=1
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;;
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--pen-test | --pentest)
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PENTESTINGMODE=1
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;;
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# Define a custom profile file
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--profile)
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if [ $# -gt 1 ]; then
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shift
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SEARCH_PROFILES="$1"
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else
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echo "Specify the profile (lynis audit system --profile /home/michael/myprofile.prf)"
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exit 1
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fi
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;;
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# Define a custom plugin directory
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--plugindir | --plugin-dir | --plugins-dir)
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if [ $# -gt 1 ]; then
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shift
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PLUGINDIR=$1
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LASTCHAR=$(echo $1 | awk '{ print substr($0, length($0))}')
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if [ "${LASTCHAR}" = "/" ]; then
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echo "${RED}Error:${WHITE} plugin directory path should not end with a slash${NORMAL}"
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ExitCustom 65
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fi
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if [ ! -d ${PLUGINDIR} ]; then
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echo "${RED}Error:${WHITE} invalid plugin directory ${PLUGINDIR}${NORMAL}"
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ExitCustom 66
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fi
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else
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echo "Specify the plugin directory (lynis audit system --plugindir /home/michael/plugins)"
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exit 1
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fi
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;;
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# Quiet mode
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--quiet | -q | --silent)
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QUIET=1
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;;
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# Non-interactive mode
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--quick | -Q)
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QUICKMODE=1
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;;
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# Define alternative report file
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--report-file)
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shift
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REPORTFILE=$1
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;;
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# Strip the colors which aren't clearly visible on light backgrounds
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--reverse-colors | --reverse-colour)
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BLUE="${NORMAL}";
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SECTION="${NORMAL}";
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NOTICE="${NORMAL}";
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CYAN="${NORMAL}";
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GREEN="${NORMAL}";
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YELLOW="${NORMAL}";
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WHITE="${NORMAL}";
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PURPLE="${NORMAL}";
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;;
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# Root directory (useful for forensics)
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--rootdir | --root-dir)
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if [ $# -gt 1 ]; then
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shift
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if [ -d $1 ]; then
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ROOTDIR="$1"
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else
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echo "Invalid rootdir provided (does not exist)"
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exit 1
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fi
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else
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echo "Need a root directory (e.g. /mnt/forensics)"
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exit 1
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fi
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;;
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# Only scan these tests
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--tests)
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shift
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TESTS_TO_PERFORM=$1
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;;
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# Scan one or more tests from just one category (e.g. security)
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--tests-from-category)
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shift
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TEST_CATEGORY_TO_CHECK=$1
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;;
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# Scan one or more tests from just on group
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--tests-from-group | --tests-from-groups | --test-from-group | --test-from-groups)
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shift
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TEST_GROUP_TO_CHECK=$1
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;;
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# Lynis Enterprise: upload data to central node
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--upload)
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UPLOAD_DATA=1
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;;
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--usecwd | --use-cwd)
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USE_CWD=1
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;;
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--verbose)
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VERBOSE=1
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;;
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# Version number
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--version | -V)
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echo "${PROGRAM_VERSION}"
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exit 0
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;;
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# View man page
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--view-manpage | --man-page | --manpage | --man)
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if [ -f lynis.8 ]; then
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nroff -man lynis.8
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exit 0
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else
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echo "Error: man page file not found (lynis.8)"
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echo "If you are running an installed version of Lynis, use 'man lynis'"
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exit 1
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fi
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;;
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--wait)
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QUICKMODE=0
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;;
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# Warnings
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--warnings-only | --show-warnings-only)
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SHOW_WARNINGS_ONLY=1
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QUIET=1
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;;
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--tests-category | --tests-categories | --view-categories | --list-categories | --show-categories)
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echo "Error: Deprecated option ($1)"
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exit 1
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;;
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# Soon to be deprecated options
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# Perform tests (deprecated, use audit system)
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--check-all | --checkall | -c)
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echo "This option (-c) is deprecated."
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echo "Use: lynis audit system [options]"
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ExitFatal
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;;
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# View program/database information
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--check-update | --check-updates | --info)
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echo "This option (--info) is deprecated"
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echo "Use: lynis update info"
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ExitFatal
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;;
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# Display all available options with short alias
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--dump-options | --dumpoptions)
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echo "This option (--dump-options) is deprecated"
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echo "Use: lynis show options"
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ExitFatal
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;;
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# License key for Lynis Enterprise
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--license-key)
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echo "This option is deprecated"
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echo "Define a license key in /etc/lynis/custom.prf"
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ExitFatal
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;;
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# Drop out when using wrong option(s)
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*)
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# Wrong option used, we bail out later
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WRONGOPTION=1
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WRONGOPTION_value=$1
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;;
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esac
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shift
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done
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# Ensure non-interactive mode when running quietly or as cronjob
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if [ ${CRONJOB} -eq 1 -o ${QUIET} -eq 1 ]; then
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if [ ${QUICKMODE} -eq 0 ]; then
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if [ ${QUIET} -eq 0 ]; then
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echo "Switched back to quick mode (cron/non-interactive/quiet)"
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fi
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QUICKMODE=1
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fi
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fi
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#================================================================================
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# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
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