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#!/bin/sh
# shellcheck disable=1003,1091,2006,2016,2034,2039,3043
# vim: set ts=2 sw=2 sts=2 fdm=marker fmr=#(,#) et:
# Author: Diego Blanco <diego.blanco@treitos.com>
# GitHub: https://github.com/diego-treitos/linux-smart-enumeration
#
lse_version="4.14nw"
##( Colors
#
#( fg
red='\e[31m'
lred='\e[91m'
green='\e[32m'
lgreen='\e[92m'
yellow='\e[33m'
lyellow='\e[93m'
blue='\e[34m'
lblue='\e[94m'
magenta='\e[35m'
lmagenta='\e[95m'
cyan='\e[36m'
lcyan='\e[96m'
grey='\e[90m'
lgrey='\e[37m'
white='\e[97m'
black='\e[30m'
##)
#( bg
b_red='\e[41m'
b_lred='\e[101m'
b_green='\e[42m'
b_lgreen='\e[102m'
b_yellow='\e[43m'
b_lyellow='\e[103m'
b_blue='\e[44m'
b_lblue='\e[104m'
b_magenta='\e[45m'
b_lmagenta='\e[105m'
b_cyan='\e[46m'
b_lcyan='\e[106m'
b_grey='\e[100m'
b_lgrey='\e[47m'
b_white='\e[107m'
b_black='\e[40m'
##)
#( special
reset='\e[0;0m'
bold='\e[01m'
italic='\e[03m'
underline='\e[04m'
inverse='\e[07m'
conceil='\e[08m'
crossedout='\e[09m'
bold_off='\e[22m'
italic_off='\e[23m'
underline_off='\e[24m'
inverse_off='\e[27m'
conceil_off='\e[28m'
crossedout_off='\e[29m'
##)
#)
##( Globals
#
# user
lse_user_id="`id -u`"
lse_user="$USER"
[ -z "$lse_user" ] && lse_user="`id -nu`"
lse_pass=""
lse_home="$HOME"
[ -z "$lse_home" ] && lse_home="`(grep -E "^$lse_user:" /etc/passwd | cut -d: -f6)2>/dev/null`"
# system
lse_arch="`uname -m`"
lse_linux="`uname -r`"
lse_hostname="`hostname`"
lse_distro=`command -v lsb_release >/dev/null 2>&1 && lsb_release -d | sed 's/Description:\s*//' 2>/dev/null`
[ -z "$lse_distro" ] && lse_distro="`(. /etc/os-release && echo "$PRETTY_NAME")2>/dev/null`"
lse_distro_codename="" # retrieved below with lse_get_distro_codename
# lse
lse_passed_tests=""
lse_executed_tests=""
lse_DEBUG=false
lse_procmon_data=`mktemp`
lse_procmon_lock=`mktemp`
lse_cve_tmp=''
# printf
printf "$reset" | grep -q '\\' && alias printf="env printf"
#( internal data
lse_common_setuid="
/bin/fusermount
/bin/mount
/bin/ntfs-3g
/bin/ping
/bin/ping6
/bin/su
/bin/umount
/lib64/dbus-1/dbus-daemon-launch-helper
/sbin/mount.ecryptfs_private
/sbin/mount.nfs
/sbin/pam_timestamp_check
/sbin/pccardctl
/sbin/unix2_chkpwd
/sbin/unix_chkpwd
/usr/bin/Xorg
/usr/bin/arping
/usr/bin/at
/usr/bin/beep
/usr/bin/chage
/usr/bin/chfn
/usr/bin/chsh
/usr/bin/crontab
/usr/bin/expiry
/usr/bin/firejail
/usr/bin/fusermount
/usr/bin/fusermount-glusterfs
/usr/bin/fusermount3
/usr/bin/gpasswd
/usr/bin/kismet_capture
/usr/bin/mount
/usr/bin/mtr
/usr/bin/newgidmap
/usr/bin/newgrp
/usr/bin/newuidmap
/usr/bin/ntfs-3g
/usr/bin/passwd
/usr/bin/pkexec
/usr/bin/pmount
/usr/bin/procmail
/usr/bin/pumount
/usr/bin/staprun
/usr/bin/su
/usr/bin/sudo
/usr/bin/sudoedit
/usr/bin/traceroute6.iputils
/usr/bin/umount
/usr/bin/weston-launch
/usr/lib/chromium-browser/chrome-sandbox
/usr/lib/dbus-1.0/dbus-daemon-launch-helper
/usr/lib/dbus-1/dbus-daemon-launch-helper
/usr/lib/eject/dmcrypt-get-device
/usr/lib/openssh/ssh-keysign
/usr/lib/policykit-1/polkit-agent-helper-1
/usr/lib/polkit-1/polkit-agent-helper-1
/usr/lib/pt_chown
/usr/lib/snapd/snap-confine
/usr/lib/spice-gtk/spice-client-glib-usb-acl-helper
/usr/lib/x86_64-linux-gnu/lxc/lxc-user-nic
/usr/lib/xorg/Xorg.wrap
/usr/libexec/Xorg.wrap
/usr/libexec/abrt-action-install-debuginfo-to-abrt-cache
/usr/libexec/cockpit-session
/usr/libexec/dbus-1/dbus-daemon-launch-helper
/usr/libexec/gstreamer-1.0/gst-ptp-helper
/usr/libexec/openssh/ssh-keysign
/usr/libexec/polkit-1/polkit-agent-helper-1
/usr/libexec/polkit-agent-helper-1
/usr/libexec/pt_chown
/usr/libexec/qemu-bridge-helper
/usr/libexec/spice-client-glib-usb-acl-helper
/usr/libexec/spice-gtk-x86_64/spice-client-glib-usb-acl-helper
/usr/local/share/panasonic/printer/bin/L_H0JDUCZAZ
/usr/sbin/exim4
/usr/sbin/grub2-set-bootflag
/usr/sbin/mount.nfs
/usr/sbin/mtr-packet
/usr/sbin/pam_timestamp_check
/usr/sbin/pppd
/usr/sbin/pppoe-wrapper
/usr/sbin/suexec
/usr/sbin/unix_chkpwd
/usr/sbin/userhelper
/usr/sbin/usernetctl
/usr/sbin/uuidd
"
#)
#( regex rules for common setuid
lse_common_setuid="$lse_common_setuid
/snap/core.*
/var/tmp/mkinitramfs.*
"
#)
#( critical writable files
lse_critical_writable="
/etc/apache2/apache2.conf
/etc/apache2/httpd.conf
/etc/bash.bashrc
/etc/bash_completion
/etc/bash_completion.d/*
/etc/environment
/etc/environment.d/*
/etc/hosts.allow
/etc/hosts.deny
/etc/httpd/conf/httpd.conf
/etc/httpd/httpd.conf
/etc/incron.conf
/etc/incron.d/*
/etc/logrotate.d/*
/etc/modprobe.d/*
/etc/pam.d/*
/etc/passwd
/etc/php*/fpm/pool.d/*
/etc/php/*/fpm/pool.d/*
/etc/profile
/etc/profile.d/*
/etc/rc*.d/*
/etc/rsyslog.d/*
/etc/shadow
/etc/skel/*
/etc/sudoers
/etc/sudoers.d/*
/etc/supervisor/conf.d/*
/etc/supervisor/supervisord.conf
/etc/sysctl.conf
/etc/sysctl.d/*
/etc/uwsgi/apps-enabled/*
/root/.ssh/authorized_keys
"
#critical writable directories
lse_critical_writable_dirs="
/etc/bash_completion.d
/etc/cron.d
/etc/cron.daily
/etc/cron.hourly
/etc/cron.weekly
/etc/environment.d
/etc/logrotate.d
/etc/modprobe.d
/etc/pam.d
/etc/profile.d
/etc/rsyslog.d/
/etc/sudoers.d/
/etc/sysctl.d
/root
"
#)
#( CVE list (populated by the lse packager)
lse_cve_list="
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
" #CVElistMARKER
#)
#)
##( Options
lse_color=true
lse_alt_color=false
lse_interactive=true
lse_proc_time=60
lse_level=0 #Valid levels 0:default, 1:interesting, 2:all
lse_selection="" #Selected tests to run. Empty means all.
lse_find_opts='-path /proc -prune -o -path /sys -prune -o -path /dev -prune -o' #paths to exclude from searches
lse_grep_opts='--color=always'
#)
##( Lib
cecho() { #(
if $lse_color; then
printf "%b" "$@"
else
# If color is disabled we remove it
printf "%b" "$@" | sed -r 's/(\x1B|\\e)\[[0-9;:]+[A-Za-z]//g'
fi
} #)
lse_recolor() { #(
o_white="$white"
o_lyellow="$lyellow"
o_grey="$grey"
o_lred="$lred"
o_lgreen="$lgreen"
o_lcyan="$lcyan"
white="$o_grey"
lyellow="$o_lred"
grey="$lgrey"
lred="$red"
lgreen="$b_lgreen$black"
lcyan="$cyan"
} #)
lse_error() { #(
cecho "${red}ERROR: ${reset}$*\n" >&2
} #)
lse_exclude_paths() { #(
local IFS="
"
for p in `printf "%s" "$1" | tr ',' '\n'`; do
[ "`printf \"%s\" \"$p\" | cut -c1`" = "/" ] || lse_error "'$p' is not an absolute path."
p="${p%%/}"
lse_find_opts="$lse_find_opts -path ${p} -prune -o"
done
} #)
lse_set_level() { #(
case "$1" in
0|1|2)
lse_level=$(($1))
;;
*)
lse_error "Invalid level."
exit 1
;;
esac
} #)
lse_help() { #(
echo "Use: $0 [options]"
echo
echo " OPTIONS"
echo " -c Disable color"
echo " -C Use alternative color scheme"
echo " -i Non interactive mode"
echo " -h This help"
echo " -l LEVEL Output verbosity level"
echo " 0: Show highly important results. (default)"
echo " 1: Show interesting results."
echo " 2: Show all gathered information."
echo " -s SELECTION Comma separated list of sections or tests to run. Available"
echo " sections:"
echo " usr: User related tests."
echo " sud: Sudo related tests."
echo " fst: File system related tests."
echo " sys: System related tests."
echo " sec: Security measures related tests."
echo " ret: Recurrent tasks (cron, timers) related tests."
echo " net: Network related tests."
echo " srv: Services related tests."
echo " pro: Processes related tests."
echo " sof: Software related tests."
echo " ctn: Container (docker, lxc) related tests."
echo " cve: CVE related tests."
echo " Specific tests can be used with their IDs (i.e.: usr020,sud)"
echo " -e PATHS Comma separated list of paths to exclude. This allows you"
echo " to do faster scans at the cost of completeness"
echo " -p SECONDS Time that the process monitor will spend watching for"
echo " processes. A value of 0 will disable any watch (default: 60)"
echo " -S Serve the lse.sh script in this host so it can be retrieved"
echo " from a remote host."
} #)
lse_ask() { #(
local question="$1"
# We use stderr to print the question
cecho "${white}${question}: ${reset}" >&2
read -r answer
case "$answer" in
y|Y|yes|Yes|ok|Ok|true|True)
return 0
;;
*)
echo "$answer"
return 1
;;
esac
} #)
lse_request_information() { #(
if $lse_interactive; then
cecho "${grey}---\n"
[ -z "$lse_user" ] && lse_user=`lse_ask "Could not find current user name. Current user?"`
lse_pass=`lse_ask "If you know the current user password, write it here to check sudo privileges"`
cecho "${grey}---\n"
fi
} #)
lse_test_passed() { #(
# Checks if a test passed by ID
local id="$1"
for i in $lse_passed_tests; do
[ "$i" = "$id" ] && return 0
done
return 1
} #)
lse_test() { #(
# Test id
local id="$1"
# Minimum level required for this test to show its output
local level=$(($2))
# Name of the current test
local name="$3"
# Output of the test
local cmd="$4"
# Dependencies
local deps="$5"
# Variable name where to store the output
local var="$6"
# Flags affecting the execution of certain tests
local flags="$7"
# Define colors
local l="${lred}!"
local r="${lgreen}"
[ $level -eq 1 ] && l="${lyellow}*" && r="${cyan}"
[ $level -eq 2 ] && l="${lblue}i" && r="${blue}"
# Filter selected tests
if [ "$lse_selection" ]; then
local sel_match=false
for s in $lse_selection; do
if [ "$s" = "$id" ] || [ "$s" = "`printf \"%s\" \"$id\" | cut -c1-3`" ]; then
sel_match=true
fi
done
$sel_match || return 0
fi
# DEBUG messages
$lse_DEBUG && cecho "${lmagenta}DEBUG: ${lgreen}Executing: ${reset}$cmd\n"
# Print name and line
cecho "${white}[${l}${white}] ${grey}${id}${white} $name${grey}"
for i in $(seq $((${#id}+${#name}+10)) 79); do
printf "."
done
# Check if test should be skipped when running as root
if [ "$lse_user_id" -eq 0 ] && [ "$flags" = "rootskip" ]; then
cecho " ${grey}skip\n"
return 1
fi
# Check dependencies
local non_met_deps=""
for d in $deps; do
lse_test_passed "$d" || non_met_deps="$non_met_deps $d"
done
if [ "$non_met_deps" ]; then
cecho " ${grey}skip\n"
# In "selection mode" we print the missed dependencies
if [ "$lse_selection" ]; then
cecho "${red}---\n"
cecho "Dependencies not met:$reset $non_met_deps\n"
cecho "${red}---$reset\n"
fi
return 1
fi
# If level is 2 and lse_level is less than 2, then we do not execute
# level 2 tests unless their output needs to be assigned to a variable
if [ $level -ge 2 ] && [ $lse_level -lt 2 ] && [ -z "$var" ]; then
cecho " ${grey}skip\n"
return 1
else
if $lse_DEBUG; then
output="`eval "$cmd" 2>&1`"
else
# Execute command if this test's level is in scope
output="`eval "$cmd" 2>/dev/null`"
# Assign variable if available
fi
[ "$var" ] && [ "$output" ] && readonly "${var}=$output"
# Mark test as executed
lse_executed_tests="$lse_executed_tests $id"
fi
if [ -z "$output" ]; then
cecho " ${grey}nope${reset}\n"
return 1
else
lse_passed_tests="$lse_passed_tests $id"
cecho "${r} yes!${reset}\n"
if [ $lse_level -ge $level ]; then
cecho "${grey}---$reset\n"
echo "$output"
cecho "${grey}---$reset\n"
fi
return 0
fi
} #)
lse_show_info() { #(
echo
cecho "${lcyan} LSE Version:${reset} $lse_version\n"
echo
cecho "${lblue} User:${reset} $lse_user\n"
cecho "${lblue} User ID:${reset} $lse_user_id\n"
cecho "${lblue} Password:${reset} "
if [ -z "$lse_pass" ]; then
cecho "${grey}none${reset}\n"
else
cecho "******\n"
fi
cecho "${lblue} Home:${reset} $lse_home\n"
cecho "${lblue} Path:${reset} $PATH\n"
cecho "${lblue} umask:${reset} `umask 2>/dev/null`\n"
echo
cecho "${lblue} Hostname:${reset} $lse_hostname\n"
cecho "${lblue} Linux:${reset} $lse_linux\n"
if [ "$lse_distro" ]; then
cecho "${lblue}Distribution:${reset} $lse_distro\n"
fi
cecho "${lblue}Architecture:${reset} $lse_arch\n"
echo
cecho "${green}=====================(${yellow} Current Output Verbosity Level: ${cyan}$lse_level ${green})======================${reset}"
echo
if [ "$lse_user_id" -eq 0 ]; then
cecho "${green}============(${yellow} Already running as ${red}root${yellow}, some tests will be skipped! ${green})============${reset}"
echo
fi
} #)
lse_serve() { #(
# get port
which nc >/dev/null || lse_error "Could not find 'nc' netcat binary."
local_ips="`ip a | grep -Eo "inet ([0-9]{1,3}\.){3}[0-9]{1,3}" | cut -d' ' -f2`"
# Get a valid and non used port
port=`od -An -N2 -i /dev/random|grep -Eo '[0-9]+'`
port_valid=true
while true; do
for ip in $local_ips; do
nc -z "$ip" "$port" && port_valid=false
done
if [ $((port)) -lt 1024 ] || [ $((port)) -gt 65500 ]; then
port_valid=false
fi
$port_valid && break
port=`od -An -N2 -i /dev/random|grep -Eo '[0-9]+'`
done
echo
cecho " Serving ${white}Linux Smart Enumeration${reset} on port ${blue}$port${reset}.\n"
echo
cecho " Depending on your IP and available tools, some of these commands should download it in a remote host:\n"
for ip in $local_ips; do
[ "$ip" = "127.0.0.1" ] && continue
echo
cecho "${reset} [${blue}$ip${reset}]\n"
cecho "${green} * ${white}nc ${reset} $ip $port > lse.sh </dev/null; chmod 755 lse.sh\n"
cecho "${green} * ${white}curl ${reset}--http0.9 '$ip:$port' -o lse.sh; chmod 755 lse.sh\n"
cecho "${green} * ${white}wget ${reset} '$ip:$port' -O lse.sh; chmod 755 lse.sh\n"
cecho "${green} * ${white}exec 3<>/dev/tcp/${reset}$ip/$port;printf '\\\\n'>&3;cat<&3>lse.sh;exec 3<&-;chmod 755 lse.sh\n"
done
# try nc with '-N' (openbsd), then ncat and then use '-q0' (traditional)
nc -l -N -p "$port" < "$0" >/dev/null 2>/dev/null || nc -l --send-only -p "$port" < "$0" >/dev/null 2>/dev/null || nc -l -q0 -p "$port" < "$0" >/dev/null
} #)
lse_header() { #(
local id="$1"
shift
local title="$*"
local text="${magenta}"
# Filter selected tests
if [ "$lse_selection" ]; then
local sel_match=false
for s in $lse_selection; do
if [ "`printf \"%s\" \"$s\"|cut -c1-3`" = "$id" ]; then
sel_match=true
break
fi
done
$sel_match || return 0
fi
for i in $(seq ${#title} 70); do
text="$text="
done
text="$text(${green} $title ${magenta})====="
cecho "$text${reset}\n"
} #)
lse_exit() { #(
local ec=1
local text="\n${magenta}=================================="
[ "$1" ] && ec=$1
text="$text(${green} FINISHED ${magenta})=================================="
cecho "$text${reset}\n"
rm -f "$lse_procmon_data"
rm -f "$lse_procmon_lock"
rm -f "$lse_cve_tmp"
exit "$ec"
} #)
lse_procmon() { #(
# monitor processes
#NOTE: The first number will be the number of occurrences of a process due to
# uniq -c
local ps_args
local ps_busybox
if ps -V 2>&1 | grep -iq busybox; then
ps_args='-o pid,user,args'
ps_busybox=true
else
ps_args="-ewwwo start_time,pid,user:50,args"
ps_busybox=false
fi
while [ -f "$lse_procmon_lock" ]; do
if $ps_busybox; then
ps $ps_args | sed 's/^\([0-9]*\)/? \1 /g'
else
ps $ps_args
fi
sleep 0.001
done | grep -Ev "(pid,user|$lse_user *sed s/)" | sed 's/^ *//g' | tr -s '[:space:]' | grep -Ev "PID *USER *COMMAND" | grep -Ev '[^ ]+ [^ ]+ [^ ]+ \[' | sort -Mr | uniq -c | sed 's/^ *//g' > "$lse_procmon_data"
} #)
lse_proc_print() { #(
# Pretty prints output from lse_procmom received via stdin
if $lse_color; then
printf "${green}%s %8s %8s %s\n" "START" "PID" "USER" "COMMAND"
else
printf "%s %8s %8s %s\n" "START" "PID" "USER" "COMMAND"
fi
while read -r l; do
p_num=`echo "$l" | cut -d" " -f1`
p_time=`echo "$l" | cut -d" " -f2`
p_pid=`echo "$l" | cut -d" " -f3`
p_user=`echo "$l" | cut -d" " -f4`
p_args=`echo "$l" | cut -d" " -f5-`
if $lse_color; then
if [ $((p_num)) -lt 20 ]; then # few times probably periodic
printf "${red}%s ${reset}%8s ${yellow}%8s ${red}%s\n" "$p_time" "$p_pid" "$p_user" "$p_args"
else
printf "${magenta}%s ${reset}%8s ${yellow}%8s ${reset}%s\n" "$p_time" "$p_pid" "$p_user" "$p_args"
fi
else
printf "%s %8s %8s %s\n" "$p_time" "$p_pid" "$p_user" "$p_args"
fi
done
} #)
lse_get_distro_codename() { #(
# Get the distribution name
#
# ubuntu, debian, centos, redhat, opsuse, fedora, rocky
local distro="${grey}unknown${reset}"
if type lsb_release >/dev/null 2>&1; then
distro=`lsb_release -is`
elif [ -f /etc/os-release ]; then
distro=`grep -E '^ID=' /etc/os-release | cut -f2 -d=`
echo "$distro" | grep -qi opensuse && distro=opsuse
echo "$distro" | grep -qi rhel && distro=redhat
elif [ -f /etc/redhat-release ]; then
grep -qi "centos" /etc/redhat-release && distro=centos
grep -qi "fedora" /etc/redhat-release && distro=fedora
grep -qi "red hat" /etc/redhat-release && distro=redhat
grep -qi "rocky" /etc/redhat-release && distro=rocky
fi
printf '%s' "$distro" | tr '[:upper:]' '[:lower:]' | tr -d \"\'
} #)
lse_is_version_bigger() { #(
# check if version v1 is bigger than v2
local v1="$1"; local v2="$2" ; local vc
[ "$v1" = "$v2" ] && return 1 # equal is not bigger
vc="`printf "%s\n%s\n" "$v1" "$v2" | sort -rV | head -n1`"
[ "$v1" = "$vc" ] && return 0
return 1
} #)
lse_get_pkg_version() { #(
# get package version depending on distro
# returns 2 if distro is unknown
# returns 1 if package is not installed (or doesn't exist)
# returns 0 on success, and prints out the package version
pkg_name="$1"
case "$lse_distro_codename" in
debian|ubuntu)
pkg_version=`dpkg -l "$pkg_name" 2>/dev/null | grep -E '^[ih]i' | tr -s ' ' | cut -d' ' -f3`
;;
centos|redhat|fedora|opsuse|rocky|amzn)
pkg_version=`rpm -q "$pkg_name" 2>/dev/null`
pkg_version="${pkg_version##"$pkg_name"-}"
pkg_version=`echo "$pkg_version" | sed -E 's/\.(aarch64|armv7hl|i686|noarch|ppc64le|s390x|x86_64)$//'`
;;
*)
return 2
;;
esac
[ -z "$pkg_version" ] && return 1
printf "%s" "$pkg_version"
return 0
} #)
#)
#)
########################################################################( TESTS
#
# A successful test will receive some output while a failed tests will receive
# an empty string.
#
########################################################################( users
lse_run_tests_users() {
lse_header "usr" "users"
#user groups
lse_test "usr000" "2" \
"Current user groups" \
'groups' \
"" \
"lse_user_groups"
#user in an administrative group
lse_test "usr010" "1" \
"Is current user in an administrative group?" \
'grep $lse_grep_opts -E "^(adm|admin|root|sudo|wheel)" /etc/group | grep $lse_grep_opts -E "(:|,)$lse_user"'
#other users in an administrative group
lse_test "usr020" "1" \
"Are there other users in administrative groups?" \
'grep $lse_grep_opts -E "^(adm|admin|root|sudo|wheel)" /etc/group | grep -Ev ":$|:$lse_user$" | grep $lse_grep_opts -Ei ":[,a-z_-]+\$"'
#other users with shell
lse_test "usr030" "1" \
"Other users with shell" \
'grep $lse_grep_opts -E ":/[a-z/]+sh\$" /etc/passwd' \
"" \
"lse_shell_users"
#user env information
lse_test "usr040" "2" \
"Environment information" \
'env | grep -v "LS_COLORS"'
#dump user groups
lse_test "usr050" "2" \
"Groups for other users" \
'cat /etc/group'
#dump users
lse_test "usr060" "2" \
"Other users" \
'cat /etc/passwd'
#find defined PATHs
lse_test "usr070" "1" \
"PATH variables defined inside /etc" \
'for p in `grep -ERh "^ *PATH=.*" /etc/ 2> /dev/null | tr -d \"\'"'"' | cut -d= -f2 | tr ":" "\n" | sort -u`; do [ -d "$p" ] && echo "$p";done' \
"" \
"lse_exec_paths"
#check if . is in PATHs
lse_test "usr080" "0" \
"Is '.' in a PATH variable defined inside /etc?" \
'for ep in $lse_exec_paths; do [ "$ep" = "." ] && grep -ER "^ *PATH=.*" /etc/ 2> /dev/null | tr -d \"\'"'"' | grep -E "[=:]\.([:[:space:]]|\$)";done' \
"usr070"
}
#)
#########################################################################( sudo
lse_run_tests_sudo() {
lse_header "sud" "sudo"
#variables for sudo checks
lse_sudo=false
lse_sudo_commands=""
#can we sudo without supplying a password
lse_test "sud000" "0" \
"Can we sudo without a password?" \
'echo "" | sudo -nS id' && lse_sudo=true
#can we list sudo commands without supplying a password
$lse_sudo || \
lse_test "sud010" "0" \
"Can we list sudo commands without a password?" \
'echo "" | sudo -nS -l' \
"" \
"lse_sudo_commands"
if [ "$lse_pass" ]; then
#can we sudo supplying a password
$lse_sudo || \
lse_test "sud020" "0" \
"Can we sudo with a password?" \
'echo "$lse_pass" | sudo -S id' && lse_sudo=true
#can we list sudo commands without supplying a password
if ! $lse_sudo && [ -z "$lse_sudo_commands" ]; then
lse_test "sud030" "0" \
"Can we list sudo commands with a password?" \
'echo "$lse_pass" | sudo -S -l' \
"" \
"lse_sudo_commands"
fi
fi
#check if we can read the sudoers file
lse_test "sud040" "1" \
"Can we read sudoers files?" \
'grep -R "" /etc/sudoers*'
#check users that sudoed in the past
lse_test "sud050" "1" \
"Do we know if any other users used sudo?" \
'for uh in $(cut -d: -f1,6 /etc/passwd); do [ -f "${uh##*:}/.sudo_as_admin_successful" ] && echo "${uh%%:*}"; done'
}
#)
##################################################################( file system
lse_run_tests_filesystem() {
lse_header "fst" "file system"
#writable files outside user's home. NOTE: Does not check if user can write in symlink destination (performance reasons: -L implies -noleaf)
lse_test "fst000" "1" \
"Writable files outside user's home" \
'find / -path "$lse_home" -prune -o $lse_find_opts -not -type l -writable -print;
# Add symlinks owned by the user (so the user can change where they point)
find / -path "$lse_home" -prune -o $lse_find_opts -type l -user $lse_user -print' \
"" \
"lse_user_writable" \
"rootskip"
#get setuid binaries
lse_test "fst010" "1" \
"Binaries with setuid bit" \
'find / $lse_find_opts -perm -4000 -type f -print' \
"" \
"lse_setuid_binaries"
#uncommon setuid binaries
lse_test "fst020" "0" \
"Uncommon setuid binaries" \
'local setuidbin="$lse_setuid_binaries"; local IFS="
"; for cs in ${lse_common_setuid}; do setuidbin=`printf "$setuidbin\n" | grep -Ev "^$cs$"`;done ; printf "$setuidbin\n"' \
"fst010"
#can we write to any setuid binary
lse_test "fst030" "0" \
"Can we write to any setuid binary?" \
'for b in $lse_setuid_binaries; do [ -x "$b" ] && [ -w "$b" ] && echo "$b" ;done' \
"fst010"
#get setgid binaries
lse_test "fst040" "1" \
"Binaries with setgid bit" \
'find / $lse_find_opts -perm -2000 -type f -print' \
"lse_setgid_binaries"
#uncommon setgid binaries
lse_test "fst050" "0" \
"Uncommon setgid binaries" \
'printf "$lse_setgid_binaries\n" | grep -Ev "^/(bin|sbin|usr/bin|usr/lib|usr/sbin)"' \
"fst040"
#can we write to any setgid binary
lse_test "fst060" "0" \
"Can we write to any setgid binary?" \
'for b in $lse_setgid_binaries; do [ -x "$b" ] && [ -w "$b" ] && echo "$b" ;done' \
"fst040"
#can we read /root
lse_test "fst070" "1" \
"Can we read /root?" \
'ls -ahl /root/'
#check /home permissions
lse_test "fst080" "1" \
"Can we read subdirectories under /home?" \
'for h in /home/*; do [ -d "$h" ] && [ "$h" != "$lse_home" ] && ls -la "$h/"; done'
#check for SSH files in home directories
lse_test "fst090" "1" \
"SSH files in home directories" \
'for h in $(cut -d: -f6 /etc/passwd | sort -u | grep -Ev "^(/|/dev|/bin|/proc|/run/.*|/var/run/.*)$"); do find "$h" \( -name "*id_dsa*" -o -name "*id_rsa*" -o -name "*id_ecdsa*" -o -name "*id_ed25519*" -o -name "known_hosts" -o -name "authorized_hosts" -o -name "authorized_keys" \) -exec ls -la {} \; ; done'
#check useful binaries
lse_test "fst100" "1" \
"Useful binaries" \
'which curl; which dig; which gcc; which nc.openbsd; which nc; which netcat; which nmap; which socat; which wget'
#check for interesting files in home directories
lse_test "fst110" "1" \
"Other interesting files in home directories" \
'for h in $(cut -d: -f6 /etc/passwd); do find "$h" \( -name "*.rhosts" -o -name ".git-credentials" -o -name ".*history" \) -maxdepth 1 -exec ls -la {} \; ;'
#looking for credentials in /etc/fstab and /etc/mtab
lse_test "fst120" "0" \
"Are there any credentials in fstab/mtab?" \
'grep $lse_grep_opts -Ei "(user|username|login|pass|password|pw|credentials|cred)[=:]" /etc/fstab /etc/mtab'
#check if current user has mail
lse_test "fst130" "1" \
"Does '$lse_user' have mail?" \
'ls -l "/var/mail/$lse_user"'
#check if we can access other users mail mail
lse_test "fst140" "0" \
"Can we access other users mail?" \
'for f in /var/mail/*; do [ "$f" != "/var/mail/$lse_user" ] && [ -r "$f" ] && echo "$f"; done'
#check for code repositories
lse_test "fst150" "1" \
"Looking for GIT/SVN repositories" \
'find / $lse_find_opts \( -name ".git" -o -name ".svn" \) -print'
#can we write to files that can give us root
lse_test "fst160" "0" \
"Can we write to critical files?" \
'for uw in $lse_user_writable; do [ -f "$uw" ] && IFS="
"; for cw in ${lse_critical_writable}; do [ "$cw" = "$uw" ] && [ -w "$cw" ] && ls -l $cw; done ; done' \
"fst000"
#can we write to directories that can give us root
lse_test "fst170" "0" \
"Can we write to critical directories?" \
'for uw in $lse_user_writable; do [ -d "$uw" ] && IFS="
"; for cw in ${lse_critical_writable_dirs}; do [ "$cw" = "$uw" ] && [ -w "$cw" ] && ls -ld $cw; done ; done' \
"fst000"
#can we write to directories inside PATHS
lse_test "fst180" "0" \
"Can we write to directories from PATH defined in /etc?" \
'for ep in $lse_exec_paths; do [ -d "$ep" ] && [ -w "$ep" ] && ls -ld "$ep"; done' \
"usr070"
#can we read backups
lse_test "fst190" "0" \
"Can we read any backup?" \
'find / $lse_find_opts -path /usr/lib -prune -o -path /usr/share -prune -o -regextype egrep -iregex ".*(backup|dump|cop(y|ies)|bak|bkp)[^/]*\.(sql|tgz|tar|zip)?\.?(gz|xz|bzip2|bz2|lz|7z)?" -readable -type f -exec ls -al {} \;'
#are there possible credentials in any shell history files
lse_test "fst200" "0" \
"Are there possible credentials in any shell history file?" \
'for h in .bash_history .history .histfile .zhistory; do [ -f "$lse_home/$h" ] && grep $lse_grep_opts -Ei "(user|username|login|pass|password|pw|credentials)[=: ][a-z0-9]+" "$lse_home/$h" | grep -v "systemctl"; done'
#nfs exports with no_root_squash
lse_test "fst210" "0" \
"Are there NFS exports with 'no_root_squash' option?" \
'grep $lse_grep_opts "no_root_squash" /etc/exports'
#nfs exports with no_all_squash
lse_test "fst220" "1" \
"Are there NFS exports with 'no_all_squash' option?" \
'grep $lse_grep_opts "no_all_squash" /etc/exports'
#files owned by user
lse_test "fst500" "2" \
"Files owned by user '$lse_user'" \
'find / $lse_find_opts -user $lse_user -type f -exec ls -al {} \;' \
"" "" "rootskip"
#check for SSH files anywhere
lse_test "fst510" "2" \
"SSH files anywhere" \
'find / $lse_find_opts \( -name "*id_dsa*" -o -name "*id_rsa*" -o -name "*id_ecdsa*" -o -name "*id_ed25519*" -o -name "known_hosts" -o -name "authorized_hosts" -o -name "authorized_keys" \) -exec ls -la {} \;'
#dump hosts.equiv file
lse_test "fst520" "2" \
"Check hosts.equiv file and its contents" \
'find /etc -iname hosts.equiv -exec ls -la {} 2>/dev/null \; -exec cat {} \;'
#list nfs shares
lse_test "fst530" "2" \
"List NFS server shares" \
'ls -la /etc/exports 2>/dev/null && cat /etc/exports'
#dump fstab
lse_test "fst540" "2" \
"Dump fstab file" \
'cat /etc/fstab'
}
#)
#######################################################################( system
lse_run_tests_system() {
lse_header "sys" "system"
#who is logged in
lse_test "sys000" "2" \
"Who is logged in" \
'w'
#last logged in users
lse_test "sys010" "2" \
"Last logged in users" \
'last'
#check if /etc/passwd has the hashes (old system)
lse_test "sys020" "0" \
"Does the /etc/passwd have hashes?" \
'grep -v "^[^:]*:[x]" /etc/passwd'
#check if /etc/group has group password hashes (old system)
lse_test "sys022" "0" \
"Does the /etc/group have hashes?" \
'grep -v "^[^:]*:[x]" /etc/group'
#check if we can read any shadow file
lse_test "sys030" "0" \
"Can we read shadow files?" \
'for sf in "shadow" "shadow-" "shadow~" "gshadow" "gshadow-" "master.passwd"; do [ -r "/etc/$sf" ] && printf "%s\n---\n" "/etc/$sf" && cat "/etc/$sf" && printf "\n\n";done'
#check for superuser accounts
lse_test "sys040" "1" \
"Check for other superuser accounts" \
'for u in $(cut -d: -f1 /etc/passwd); do [ $(id -u $u) = 0 ] && echo $u; done | grep -v root'
#can root log in via SSH
lse_test "sys050" "1" \
"Can root user log in via SSH?" \
'grep -E "^[[:space:]]*PermitRootLogin " /etc/ssh/sshd_config | grep -E "(yes|without-password|prohibit-password)"'
#list available shells
lse_test "sys060" "2" \
"List available shells" \
'cat /etc/shells'
#system umask
lse_test "sys070" "2" \
"System umask in /etc/login.defs" \
'grep "^UMASK" /etc/login.defs'
#system password policies
lse_test "sys080" "2" \
"System password policies in /etc/login.defs" \
'grep "^PASS_MAX_DAYS\|^PASS_MIN_DAYS\|^PASS_WARN_AGE\|^ENCRYPT_METHOD" /etc/login.defs'
}
#)
#####################################################################( security
lse_run_tests_security() {
lse_header "sec" "security"
#check if selinux is present
lse_test "sec000" "1" \
"Is SELinux present?" \
'sestatus'
#get all binaries with capabilities
lse_test "sec010" "1" \
"List files with capabilities" \
'getcap -r /' \
"" \
"lse_cap_bin"
#check if we can write an a binary with capabilities
lse_test "sec020" "0" \
"Can we write to a binary with caps?" \
'for b in $(printf "$lse_cap_bin\n" | cut -d" " -f1); do [ -w "$b" ] && echo "$b"; done'
#check if we have all capabilities in any binary
lse_test "sec030" "0" \
"Do we have all caps in any binary?" \
'printf "$lse_cap_bin\n" | grep -v "cap_"'
#search /etc/security/capability.conf for users associated capapilies
lse_test "sec040" "1" \
"Users with associated capabilities" \
'grep -v "^#\|none\|^$" /etc/security/capability.conf' \
"" \
"lse_user_caps"
#does user have capabilities
lse_test "sec050" "0" \
"Does current user have capabilities?" \
'printf "$lse_user_caps\n" | grep "$lse_user"' \
"sec040"
#can user read the auditd log
lse_test "sec060" "0" \
"Can we read the auditd log?" \
'al=/var/log/audit/audit.log; test -r "$al" && echo "tail $al:" && echo && tail "$al"'
}
#)
##############################################################( recurrent tasks
lse_run_tests_recurrent_tasks() {
lse_header "ret" "recurrent tasks"
## CRON
#user crontab
lse_test "ret000" "1" \
"User crontab" \
'crontab -l | grep -Ev "^#"'
#cron tasks writable by user
lse_test "ret010" "0" \
"Cron tasks writable by user" \
'find -L /etc/cron* /etc/anacron /var/spool/cron -writable'
#list cron jobs
lse_test "ret020" "1" \
"Cron jobs" \
'grep -ERv "^(#|$)" /etc/crontab /etc/cron.d/ /etc/anacrontab'
#can we read other user crontabs?
lse_test "ret030" "1" \
"Can we read user crontabs" \
'ls -la /var/spool/cron/crontabs/*'
#can we list other user cron tasks? (you need privileges for this, so if you can something is fishy)
lse_test "ret040" "1" \
"Can we list other user cron tasks?" \
'for u in $(cut -d: -f 1 /etc/passwd); do [ "$u" != "$lse_user" ] && crontab -l -u "$u"; done'
#can we write to any paths present in cron tasks?
lse_test "ret050" "1" \
"Can we write to any paths present in cron jobs" \
'for p in `grep --color=never -hERoi "/[a-z0-9_/\.\-]+" /etc/cron* | grep -Ev "/dev/(null|zero|random|urandom)" | sort -u`; do [ -w "$p" ] && echo "$p"; done' \
"" \
"lse_user_writable_cron_paths"
#can we write to executable paths present in cron tasks?
lse_test "ret060" "0" \
"Can we write to executable paths present in cron jobs" \
'for uwcp in $lse_user_writable_cron_paths; do [ -w "$uwcp" ] && [ -x "$uwcp" ] && grep $lse_grep_opts -R "$uwcp" /etc/crontab /etc/cron.d/ /etc/anacrontab ; done' \
"ret050"
#list cron files
lse_test "ret400" "2" \
"Cron files" \
'ls -la /etc/cron*'
## Systemd Timers
#user timers
lse_test "ret500" "1" \
"User systemd timers" \
'systemctl --user list-timers --all | grep -iq "\.timer" && systemctl --user list-timers --all'
#can we write in any system timer?
lse_test "ret510" "0" \
"Can we write in any system timer?" \
'printf "$lse_user_writable\n" | grep -E "\.timer$"' \
"fst000"
#system timers
lse_test "ret900" "2" \
"Systemd timers" \
'systemctl list-timers --all'
}
#)
######################################################################( network
lse_run_tests_network() {
lse_header "net" "network"
#services listening only on localhost
lse_test "net000" "1" \
"Services listening only on localhost" \
'(ss -tunlp || netstat -tunlp)2>/dev/null | grep "127.0.0.1:"'
#can we execute tcpdump
lse_test "net010" "0" \
"Can we sniff traffic with tcpdump?" \
'(tcpdump -i lo -n 2>&1 & pid=$!;sleep 0.2;kill $pid)2>/dev/null | grep -i "listening on lo"'
#nic information
lse_test "net500" "2" \
"NIC and IP information" \
'ifconfig -a || ip a'
#routing table
lse_test "net510" "2" \
"Routing table" \
'route -n || ip r'
#arp table
lse_test "net520" "2" \
"ARP table" \
'arp -an || ip n'
#nameservers
lse_test "net530" "2" \
"Nameservers" \
'grep "nameserver" /etc/resolv.conf'
#systemd nameservers
lse_test "net540" "2" \
"Systemd Nameservers" \
'systemd-resolve --status || systemd-resolve --user --status'
#listening TCP
lse_test "net550" "2" \
"Listening TCP" \
'netstat -tnlp || ss -tnlp'
#listening UDP
lse_test "net560" "2" \
"Listening UDP" \
'netstat -unlp || ss -unlp'
}
#)
#####################################################################( services
lse_run_tests_services() {
lse_header "srv" "services"
## System-V
#check write permissions in init.d/* inetd.conf xinetd.conf
lse_test "srv000" "0" \
"Can we write in service files?" \
'printf "$lse_user_writable\n" | grep -E "^/etc/(init/|init\.d/|rc\.d/|rc[0-9S]\.d/|rc\.local|inetd\.conf|xinetd\.conf|xinetd\.d/)"' \
"fst000"
#check write permissions for binaries involved in services
lse_test "srv010" "0" \
"Can we write in binaries executed by services?" \
'for b in $(grep -ERvh "^#" /etc/inetd.conf /etc/xinetd.conf /etc/xinetd.d/ /etc/init.d/ /etc/rc* 2>/dev/null | tr -s "[[:space:]]" "\n" | grep -E "^/" | grep -Ev "^/(dev|run|sys|proc|tmp)/" | sort -u); do [ -x "$b" ] && [ -w "$b" ] && echo "$b" done'
#init.d files NOT belonging to root
lse_test "srv020" "1" \
"Files in /etc/init.d/ not belonging to root" \
'find /etc/init.d/ \! -uid 0 -type f | xargs -r ls -la'
#rc.d/init.d files NOT belonging to root!
lse_test "srv030" "1" \
"Files in /etc/rc.d/init.d not belonging to root" \
'find /etc/rc.d/init.d \! -uid 0 -type f | xargs -r ls -la'
# upstart scripts not belonging to root
lse_test "srv040" "1" \
"Upstart files not belonging to root" \
'find /etc/init \! -uid 0 -type f | xargs -r ls -la'
#/usr/local/etc/rc.d files NOT belonging to root!
lse_test "srv050" "1" \
"Files in /usr/local/etc/rc.d not belonging to root" \
'find /usr/local/etc/rc.d \! -uid 0 -type f | xargs -r ls -la'
#contents of inetd.conf
lse_test "srv400" "2" \
"Contents of /etc/inetd.conf" \
'cat /etc/inetd.conf'
#xinetd info
lse_test "srv410" "2" \
"Contents of /etc/xinetd.conf" \
'cat /etc/xinetd.conf'
#check xinetd.d and permissions
lse_test "srv420" "2" \
"List /etc/xinetd.d if used" \
'grep "/etc/xinetd.d" /etc/xinetd.conf ; ls -la /etc/xinetd.d'
#permissions of init.d scripts
lse_test "srv430" "2" \
"List /etc/init.d/ permissions" \
'ls -la /etc/init.d'
#rc.d/init.d permissions
lse_test "srv440" "2" \
"List /etc/rc.d/init.d permissions" \
'ls -la /etc/rc.d/init.d'
#usr/rc.d permissions
lse_test "srv450" "2" \
"List /usr/local/etc/rc.d permissions" \
'ls -la /usr/local/etc/rc.d'
# init permissions
lse_test "srv460" "2" \
"List /etc/init/ permissions" \
'ls -la /etc/init/'
## Systemd
#check write permissions in systemd services
lse_test "srv500" "0" \
"Can we write in systemd service files?" \
'printf "$lse_user_writable\n" | grep -E "^/(etc/systemd/|lib/systemd/).+\.service$"' \
"fst000"
#check write permissions for binaries involved in systemd services
lse_test "srv510" "0" \
"Can we write in binaries executed by systemd services?" \
'for b in $(grep -ERh "^Exec" /etc/systemd/ /lib/systemd/ 2>/dev/null | tr "=" "\n" | tr -s "[[:space:]]" "\n" | grep -E "^/" | grep -Ev "^/(dev|run|sys|proc|tmp)/" | sort -u); do [ -x "$b" ] && [ -w "$b" ] && echo "$b" done'
# systemd files not belonging to root
lse_test "srv520" "1" \
"Systemd files not belonging to root" \
'find /lib/systemd/ /etc/systemd \! -uid 0 -type f | xargs -r ls -la'
# systemd permissions
lse_test "srv900" "2" \
"Systemd config files permissions" \
'ls -lthR /lib/systemd/ /etc/systemd/'
}
#)
#####################################################################( software
lse_run_tests_software() {
lse_header "sof" "software"
#checks to see if root/root will get us a connection
lse_test "sof000" "0" \
"Can we connect to MySQL with root/root credentials?" \
'mysqladmin -uroot -proot version'
#checks to see if we can connect as root without password
lse_test "sof010" "0" \
"Can we connect to MySQL as root without password?" \
'mysqladmin -uroot version'
#check if there are credentials stored in .mysql-history
lse_test "sof015" "0" \
"Are there credentials in mysql_history file?" \
'grep -Ei "(pass|identified by|md5\()" "$lse_home/.mysql_history"'
#checks to see if we can connect to postgres templates without password
lse_test "sof020" "0" \
"Can we connect to PostgreSQL template0 as postgres and no pass?" \
'psql -U postgres template0 -c "select version()" | grep version'
lse_test "sof020" "0" \
"Can we connect to PostgreSQL template1 as postgres and no pass?" \
'psql -U postgres template1 -c "select version()" | grep version'
lse_test "sof020" "0" \
"Can we connect to PostgreSQL template0 as psql and no pass?" \
'psql -U pgsql template0 -c "select version()" | grep version'
lse_test "sof020" "0" \
"Can we connect to PostgreSQL template1 as psql and no pass?" \
'psql -U pgsql template1 -c "select version()" | grep version'
#installed apache modules
lse_test "sof030" "1" \
"Installed apache modules" \
'apache2ctl -M; httpd -M'
#find htpassword files
lse_test "sof040" "0" \
"Found any .htpasswd files?" \
'find / $lse_find_opts -name "*.htpasswd" -print -exec cat {} \;'
#check if there are ssh private keys in ssh-agent
lse_test "sof050" "0" \
"Are there private keys in ssh-agent?" \
'ssh-add -l | grep -iv "agent has no identities"'
#check if there are gpg keys in gpg-agent
lse_test "sof060" "0" \
"Are there gpg keys cached in gpg-agent?" \
'gpg-connect-agent "keyinfo --list" /bye | grep "D - - 1"'
#check if there is a writable ssh-agent socket
lse_test "sof070" "0" \
"Can we write to a ssh-agent socket?" \
'for f in $lse_user_writable; do test -S "$f" && printf "$f" | grep -Ea "ssh-[A-Za-z0-9]+/agent\.[0-9]+"; done' \
"fst000"
#check if there is a writable gpg-agent socket
lse_test "sof080" "0" \
"Can we write to a gpg-agent socket?" \
'for f in $lse_user_writable; do test -S "$f" && printf "$f" | grep -a "gpg-agent"; done' \
"fst000"
#find keepass database files
lse_test "sof090" "0" \
"Found any keepass database files?" \
'find / $lse_find_opts -regextype egrep -iregex ".*\.kdbx?" -readable -type f -print'
#find pass database files
lse_test "sof100" "0" \
"Found any 'pass' store directories?" \
'find / $lse_find_opts -name ".password-store" -readable -type d -print'
#check if any tmux session is active
lse_test "sof110" "0" \
"Are there any tmux sessions available?" \
'tmux list-sessions'
#check for all tmux sessions for other users
lse_test "sof120" "1" \
"Are there any tmux sessions from other users?" \
'find /tmp -type d -regex "/tmp/tmux-[0-9]+" ! -user $lse_user'
#check if we have write access to other users tmux sessions
lse_test "sof130" "0" \
"Can we write to tmux session sockets from other users?" \
'find /tmp -writable -type s -regex "/tmp/tmux-[0-9]+/.+" ! -user $lse_user -exec ls -l {} +'
#check if there is any active screen session
lse_test "sof140" "0" \
"Are any screen sessions available?" \
'screen -ls >/dev/null && screen -ls'
#find other users screen sessions
lse_test "sof150" "1" \
"Are there any screen sessions from other users?" \
'find /run/screen -type d -regex "/run/screen/S-.+" ! -user $lse_user'
#find writable screen session sockets from other users
lse_test "sof160" "0" \
"Can we write to screen session sockets from other users?" \
'find /run/screen -type s -writable -regex "/run/screen/S-.+/.+" ! -user $lse_user -exec ls -l {} +'
#check connection to mongoDB
lse_test "sof170" "1" \
"Can we access MongoDB databases without credentials?" \
'echo "show dbs" | mongo --quiet | grep -E "(admin|config|local)"'
#find kerberos credentials
lse_test "sof180" "0" \
"Can we access any Kerberos credentials?" \
'find / $lse_find_opts -name "*.so" -prune -o \( -name "krb5cc*" -o -name "*.ccache" -o -name "*.kirbi" -o -name "*.keytab" \) -type f -readable -exec ls -lh {} +'
#sudo version - check to see if there are any known vulnerabilities with this
lse_test "sof500" "2" \
"Sudo version" \
'sudo -V | grep "Sudo version"'
#mysql details - if installed
lse_test "sof510" "2" \
"MySQL version" \
'mysql --version'
#postgres details - if installed
lse_test "sof520" "2" \
"Postgres version" \
'psql -V'
#apache details - if installed
lse_test "sof530" "2" \
"Apache version" \
'apache2 -v; httpd -v'
#check tmux version
lse_test "sof540" "2" \
"Tmux version" \
'tmux -V'
#check screen version
lse_test "sof550" "2" \
"Screen version" \
'screen -v'
}
#)
###################################################################( containers
lse_run_tests_containers() {
lse_header "ctn" "containers"
#check to see if we are in a docker container
lse_test "ctn000" "1" \
"Are we in a docker container?" \
'grep -i docker /proc/self/cgroup; find / $lse_find_opts -name "*dockerenv*" -exec ls -la {} \;'
#check to see if current host is running docker services
lse_test "ctn010" "1" \
"Is docker available?" \
'docker --version; docker ps -a; docker images'
#is user a member of the docker group
lse_test "ctn020" "0" \
"Is the user a member of the 'docker' group?" \
'groups | grep -o docker'
#check to see if we are in an lxc container
lse_test "ctn200" "1" \
"Are we in a lxc container?" \
'grep -a container=lxc /proc/1/environ | tr -d "\0"'
#is user a member of any lxd/lxc group
lse_test "ctn210" "0" \
"Is the user a member of any lxc/lxd group?" \
'groups | grep $lse_grep_opts "lxc\|lxd"'
}
#)
####################################################################( processes
lse_run_tests_processes() {
lse_header "pro" "processes"
#wait for the process monitor to finish gathering data
lse_test "pro000" "2" \
"Waiting for the process monitor to finish" \
'while [ ! -s "$lse_procmon_data" ]; do sleep 1; done; cat "$lse_procmon_data"'\
"" \
"lse_procs"
#look for the paths of the process binaries
lse_test "pro001" "2" \
"Retrieving process binaries" \
'printf "%s" "$lse_procs" | cut -d" " -f5 | sort -u | xargs -r which' \
"pro000" \
'lse_proc_bin'
#look for the users running the
lse_test "pro002" "2" \
"Retrieving process users" \
'printf "%s" "$lse_procs" | cut -d" " -f4 | sort -u' \
"pro000" \
'lse_proc_users'
#check if we have write permissions in any process binary
lse_test "pro010" "0" \
"Can we write in any process binary?" \
'for b in $lse_proc_bin; do [ -w "$b" ] && echo $b; done'\
"pro001"
#list processes running as root
lse_test "pro020" "1" \
"Processes running with root permissions" \
'printf "%s" "$lse_procs" | grep -E "^[^ ]+ [^ ]+ [^ ]+ root" | lse_proc_print' \
"pro000"
#list processes running as users with shell
lse_test "pro030" "1" \
"Processes running by non-root users with shell" \
'for user in `printf "%s\n" "$lse_shell_users" | cut -d: -f1 | grep -v root`; do printf "%s" "$lse_proc_users" | grep -qE "(^| )$user( |\$)" && printf "\n\n------ $user ------\n\n\n" && printf "%s" "$lse_procs" | grep -E "^[^ ]+ [^ ]+ [^ ]+ $user" | lse_proc_print; done' \
"usr030 pro000 pro002"
#running processes
lse_test "pro500" "2" \
"Running processes" \
'printf "%s\n" "$lse_procs" | lse_proc_print' \
"pro000"
#list running process binaries and their permissions
lse_test "pro510" "2" \
"Running process binaries and permissions" \
'printf "%s\n" "$lse_proc_bin" | xargs ls -l' \
"pro001"
}
#)
#########################################################################( CVEs
lse_run_tests_cves() {
lse_header "cve" "CVEs"
if [ "${#lse_cve_list}" = 1 ]; then
if [ -z "$lse_selection" ] || printf "%s" "$lse_selection" | grep -iq 'cve'; then
printf "%s\n%s\n%s" \
" In order to test for CVEs, download lse.sh from the GitHub releases page." \
" Alternatively, build lse_cve.sh using tools/package_cvs_into_lse.sh from the" \
" repository."
fi
else
for lse_cve in $lse_cve_list; do
eval "$(printf '%s' "$lse_cve" | base64 -d | gunzip -c)"
lse_test "$lse_cve_id" "$lse_cve_level" \
"$lse_cve_description" \
"lse_cve_test"
done
fi
}
#)
#
##)
#( Main
main() {
while getopts "hcCil:e:p:s:S" option; do
case "${option}" in
c) lse_color=false; lse_grep_opts='--color=never';;
C) lse_alt_color=true;;
e) lse_exclude_paths "${OPTARG}";;
i) lse_interactive=false;;
l) lse_set_level "${OPTARG}";;
s) lse_selection="`printf \"%s\" \"${OPTARG}\"|sed 's/,/ /g'`";;
p) lse_proc_time="${OPTARG}";;
S) lse_serve; exit $?;;
h) lse_help; exit 0;;
*) lse_help; exit 1;;
esac
done
#trap to exec on SIGINT
trap "lse_exit 1" 2
# use alternative color scheme
$lse_alt_color && lse_recolor
lse_request_information
lse_show_info
PATH="$PATH:/sbin:/usr/sbin" #fix path just in case
lse_distro_codename=`lse_get_distro_codename`
lse_procmon &
(sleep "$lse_proc_time"; rm -f "$lse_procmon_lock") &
## NO WAR
lse_header "nowar" "humanity"
lse_test "nowar0" "0" \
'Should we question autocrats and their "military operations"?' \
'cecho " $black$b_blue NO $reset\n $black$b_yellow WAR $reset"'
lse_run_tests_users
lse_run_tests_sudo
lse_run_tests_filesystem
lse_run_tests_system
lse_run_tests_security
lse_run_tests_recurrent_tasks
lse_run_tests_network
lse_run_tests_services
lse_run_tests_software
lse_run_tests_containers
lse_run_tests_processes
lse_run_tests_cves
lse_exit 0
}
[ ! "$lse_NO_EXEC" ] && main "$@"
#)