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-rw-r--r--recipes-security/checksec/files/checksec.sh882
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diff --git a/recipes-security/checksec/files/checksec.sh b/recipes-security/checksec/files/checksec.sh
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-#!/bin/bash
-#
-# The BSD License (http://www.opensource.org/licenses/bsd-license.php)
-# specifies the terms and conditions of use for checksec.sh:
-#
-# Copyright (c) 2009-2011, Tobias Klein.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# * Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in
-# the documentation and/or other materials provided with the
-# distribution.
-# * Neither the name of Tobias Klein nor the name of trapkit.de may be
-# used to endorse or promote products derived from this software
-# without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
-# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
-# DAMAGE.
-#
-# Name : checksec.sh
-# Version : 1.5
-# Author : Tobias Klein
-# Date : November 2011
-# Download: http://www.trapkit.de/tools/checksec.html
-# Changes : http://www.trapkit.de/tools/checksec_changes.txt
-#
-# Description:
-#
-# Modern Linux distributions offer some mitigation techniques to make it
-# harder to exploit software vulnerabilities reliably. Mitigations such
-# as RELRO, NoExecute (NX), Stack Canaries, Address Space Layout
-# Randomization (ASLR) and Position Independent Executables (PIE) have
-# made reliably exploiting any vulnerabilities that do exist far more
-# challenging. The checksec.sh script is designed to test what *standard*
-# Linux OS and PaX (http://pax.grsecurity.net/) security features are being
-# used.
-#
-# As of version 1.3 the script also lists the status of various Linux kernel
-# protection mechanisms.
-#
-# Credits:
-#
-# Thanks to Brad Spengler (grsecurity.net) for the PaX support.
-# Thanks to Jon Oberheide (jon.oberheide.org) for the kernel support.
-# Thanks to Ollie Whitehouse (Research In Motion) for rpath/runpath support.
-#
-# Others that contributed to checksec.sh (in no particular order):
-#
-# Simon Ruderich, Denis Scherbakov, Stefan Kuttler, Radoslaw Madej,
-# Anthony G. Basile, Martin Vaeth and Brian Davis.
-#
-
-# global vars
-have_readelf=1
-verbose=false
-
-# FORTIFY_SOURCE vars
-FS_end=_chk
-FS_cnt_total=0
-FS_cnt_checked=0
-FS_cnt_unchecked=0
-FS_chk_func_libc=0
-FS_functions=0
-FS_libc=0
-
-# version information
-version() {
- echo "checksec v1.5, Tobias Klein, www.trapkit.de, November 2011"
- echo
-}
-
-# help
-help() {
- echo "Usage: checksec [OPTION]"
- echo
- echo "Options:"
- echo
- echo " --file <executable-file>"
- echo " --dir <directory> [-v]"
- echo " --proc <process name>"
- echo " --proc-all"
- echo " --proc-libs <process ID>"
- echo " --kernel"
- echo " --fortify-file <executable-file>"
- echo " --fortify-proc <process ID>"
- echo " --version"
- echo " --help"
- echo
- echo "For more information, see:"
- echo " http://www.trapkit.de/tools/checksec.html"
- echo
-}
-
-# check if command exists
-command_exists () {
- type $1 > /dev/null 2>&1;
-}
-
-# check if directory exists
-dir_exists () {
- if [ -d $1 ] ; then
- return 0
- else
- return 1
- fi
-}
-
-# check user privileges
-root_privs () {
- if [ $(/usr/bin/id -u) -eq 0 ] ; then
- return 0
- else
- return 1
- fi
-}
-
-# check if input is numeric
-isNumeric () {
- echo "$@" | grep -q -v "[^0-9]"
-}
-
-# check if input is a string
-isString () {
- echo "$@" | grep -q -v "[^A-Za-z]"
-}
-
-# check file(s)
-filecheck() {
- # check for RELRO support
- if readelf -l $1 2>/dev/null | grep -q 'GNU_RELRO'; then
- if readelf -d $1 2>/dev/null | grep -q 'BIND_NOW'; then
- echo -n -e '\033[32mFull RELRO \033[m '
- else
- echo -n -e '\033[33mPartial RELRO\033[m '
- fi
- else
- echo -n -e '\033[31mNo RELRO \033[m '
- fi
-
- # check for stack canary support
- if readelf -s $1 2>/dev/null | grep -q '__stack_chk_fail'; then
- echo -n -e '\033[32mCanary found \033[m '
- else
- echo -n -e '\033[31mNo canary found\033[m '
- fi
-
- # check for NX support
- if readelf -W -l $1 2>/dev/null | grep 'GNU_STACK' | grep -q 'RWE'; then
- echo -n -e '\033[31mNX disabled\033[m '
- else
- echo -n -e '\033[32mNX enabled \033[m '
- fi
-
- # check for PIE support
- if readelf -h $1 2>/dev/null | grep -q 'Type:[[:space:]]*EXEC'; then
- echo -n -e '\033[31mNo PIE \033[m '
- elif readelf -h $1 2>/dev/null | grep -q 'Type:[[:space:]]*DYN'; then
- if readelf -d $1 2>/dev/null | grep -q '(DEBUG)'; then
- echo -n -e '\033[32mPIE enabled \033[m '
- else
- echo -n -e '\033[33mDSO \033[m '
- fi
- else
- echo -n -e '\033[33mNot an ELF file\033[m '
- fi
-
- # check for rpath / run path
- if readelf -d $1 2>/dev/null | grep -q 'rpath'; then
- echo -n -e '\033[31mRPATH \033[m '
- else
- echo -n -e '\033[32mNo RPATH \033[m '
- fi
-
- if readelf -d $1 2>/dev/null | grep -q 'runpath'; then
- echo -n -e '\033[31mRUNPATH \033[m '
- else
- echo -n -e '\033[32mNo RUNPATH \033[m '
- fi
-}
-
-# check process(es)
-proccheck() {
- # check for RELRO support
- if readelf -l $1/exe 2>/dev/null | grep -q 'Program Headers'; then
- if readelf -l $1/exe 2>/dev/null | grep -q 'GNU_RELRO'; then
- if readelf -d $1/exe 2>/dev/null | grep -q 'BIND_NOW'; then
- echo -n -e '\033[32mFull RELRO \033[m '
- else
- echo -n -e '\033[33mPartial RELRO \033[m '
- fi
- else
- echo -n -e '\033[31mNo RELRO \033[m '
- fi
- else
- echo -n -e '\033[31mPermission denied (please run as root)\033[m\n'
- exit 1
- fi
-
- # check for stack canary support
- if readelf -s $1/exe 2>/dev/null | grep -q 'Symbol table'; then
- if readelf -s $1/exe 2>/dev/null | grep -q '__stack_chk_fail'; then
- echo -n -e '\033[32mCanary found \033[m '
- else
- echo -n -e '\033[31mNo canary found \033[m '
- fi
- else
- if [ "$1" != "1" ] ; then
- echo -n -e '\033[33mPermission denied \033[m '
- else
- echo -n -e '\033[33mNo symbol table found\033[m '
- fi
- fi
-
- # first check for PaX support
- if cat $1/status 2> /dev/null | grep -q 'PaX:'; then
- pageexec=( $(cat $1/status 2> /dev/null | grep 'PaX:' | cut -b6) )
- segmexec=( $(cat $1/status 2> /dev/null | grep 'PaX:' | cut -b10) )
- mprotect=( $(cat $1/status 2> /dev/null | grep 'PaX:' | cut -b8) )
- randmmap=( $(cat $1/status 2> /dev/null | grep 'PaX:' | cut -b9) )
- if [[ "$pageexec" = "P" || "$segmexec" = "S" ]] && [[ "$mprotect" = "M" && "$randmmap" = "R" ]] ; then
- echo -n -e '\033[32mPaX enabled\033[m '
- elif [[ "$pageexec" = "p" && "$segmexec" = "s" && "$randmmap" = "R" ]] ; then
- echo -n -e '\033[33mPaX ASLR only\033[m '
- elif [[ "$pageexec" = "P" || "$segmexec" = "S" ]] && [[ "$mprotect" = "m" && "$randmmap" = "R" ]] ; then
- echo -n -e '\033[33mPaX mprot off \033[m'
- elif [[ "$pageexec" = "P" || "$segmexec" = "S" ]] && [[ "$mprotect" = "M" && "$randmmap" = "r" ]] ; then
- echo -n -e '\033[33mPaX ASLR off\033[m '
- elif [[ "$pageexec" = "P" || "$segmexec" = "S" ]] && [[ "$mprotect" = "m" && "$randmmap" = "r" ]] ; then
- echo -n -e '\033[33mPaX NX only\033[m '
- else
- echo -n -e '\033[31mPaX disabled\033[m '
- fi
- # fallback check for NX support
- elif readelf -W -l $1/exe 2>/dev/null | grep 'GNU_STACK' | grep -q 'RWE'; then
- echo -n -e '\033[31mNX disabled\033[m '
- else
- echo -n -e '\033[32mNX enabled \033[m '
- fi
-
- # check for PIE support
- if readelf -h $1/exe 2>/dev/null | grep -q 'Type:[[:space:]]*EXEC'; then
- echo -n -e '\033[31mNo PIE \033[m '
- elif readelf -h $1/exe 2>/dev/null | grep -q 'Type:[[:space:]]*DYN'; then
- if readelf -d $1/exe 2>/dev/null | grep -q '(DEBUG)'; then
- echo -n -e '\033[32mPIE enabled \033[m '
- else
- echo -n -e '\033[33mDynamic Shared Object\033[m '
- fi
- else
- echo -n -e '\033[33mNot an ELF file \033[m '
- fi
-}
-
-# check mapped libraries
-libcheck() {
- libs=( $(awk '{ print $6 }' /proc/$1/maps | grep '/' | sort -u | xargs file | grep ELF | awk '{ print $1 }' | sed 's/:/ /') )
-
- printf "\n* Loaded libraries (file information, # of mapped files: ${#libs[@]}):\n\n"
-
- for element in $(seq 0 $((${#libs[@]} - 1)))
- do
- echo " ${libs[$element]}:"
- echo -n " "
- filecheck ${libs[$element]}
- printf "\n\n"
- done
-}
-
-# check for system-wide ASLR support
-aslrcheck() {
- # PaX ASLR support
- if !(cat /proc/1/status 2> /dev/null | grep -q 'Name:') ; then
- echo -n -e ':\033[33m insufficient privileges for PaX ASLR checks\033[m\n'
- echo -n -e ' Fallback to standard Linux ASLR check'
- fi
-
- if cat /proc/1/status 2> /dev/null | grep -q 'PaX:'; then
- printf ": "
- if cat /proc/1/status 2> /dev/null | grep 'PaX:' | grep -q 'R'; then
- echo -n -e '\033[32mPaX ASLR enabled\033[m\n\n'
- else
- echo -n -e '\033[31mPaX ASLR disabled\033[m\n\n'
- fi
- else
- # standard Linux 'kernel.randomize_va_space' ASLR support
- # (see the kernel file 'Documentation/sysctl/kernel.txt' for a detailed description)
- printf " (kernel.randomize_va_space): "
- if /sbin/sysctl -a 2>/dev/null | grep -q 'kernel.randomize_va_space = 1'; then
- echo -n -e '\033[33mOn (Setting: 1)\033[m\n\n'
- printf " Description - Make the addresses of mmap base, stack and VDSO page randomized.\n"
- printf " This, among other things, implies that shared libraries will be loaded to \n"
- printf " random addresses. Also for PIE-linked binaries, the location of code start\n"
- printf " is randomized. Heap addresses are *not* randomized.\n\n"
- elif /sbin/sysctl -a 2>/dev/null | grep -q 'kernel.randomize_va_space = 2'; then
- echo -n -e '\033[32mOn (Setting: 2)\033[m\n\n'
- printf " Description - Make the addresses of mmap base, heap, stack and VDSO page randomized.\n"
- printf " This, among other things, implies that shared libraries will be loaded to random \n"
- printf " addresses. Also for PIE-linked binaries, the location of code start is randomized.\n\n"
- elif /sbin/sysctl -a 2>/dev/null | grep -q 'kernel.randomize_va_space = 0'; then
- echo -n -e '\033[31mOff (Setting: 0)\033[m\n'
- else
- echo -n -e '\033[31mNot supported\033[m\n'
- fi
- printf " See the kernel file 'Documentation/sysctl/kernel.txt' for more details.\n\n"
- fi
-}
-
-# check cpu nx flag
-nxcheck() {
- if grep -q nx /proc/cpuinfo; then
- echo -n -e '\033[32mYes\033[m\n\n'
- else
- echo -n -e '\033[31mNo\033[m\n\n'
- fi
-}
-
-# check for kernel protection mechanisms
-kernelcheck() {
- printf " Description - List the status of kernel protection mechanisms. Rather than\n"
- printf " inspect kernel mechanisms that may aid in the prevention of exploitation of\n"
- printf " userspace processes, this option lists the status of kernel configuration\n"
- printf " options that harden the kernel itself against attack.\n\n"
- printf " Kernel config: "
-
- if [ -f /proc/config.gz ] ; then
- kconfig="zcat /proc/config.gz"
- printf "\033[32m/proc/config.gz\033[m\n\n"
- elif [ -f /boot/config-`uname -r` ] ; then
- kconfig="cat /boot/config-`uname -r`"
- printf "\033[33m/boot/config-`uname -r`\033[m\n\n"
- printf " Warning: The config on disk may not represent running kernel config!\n\n";
- elif [ -f "${KBUILD_OUTPUT:-/usr/src/linux}"/.config ] ; then
- kconfig="cat ${KBUILD_OUTPUT:-/usr/src/linux}/.config"
- printf "\033[33m%s\033[m\n\n" "${KBUILD_OUTPUT:-/usr/src/linux}/.config"
- printf " Warning: The config on disk may not represent running kernel config!\n\n";
- else
- printf "\033[31mNOT FOUND\033[m\n\n"
- exit 0
- fi
-
- printf " GCC stack protector support: "
- if $kconfig | grep -qi 'CONFIG_CC_STACKPROTECTOR=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Strict user copy checks: "
- if $kconfig | grep -qi 'CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Enforce read-only kernel data: "
- if $kconfig | grep -qi 'CONFIG_DEBUG_RODATA=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
- printf " Restrict /dev/mem access: "
- if $kconfig | grep -qi 'CONFIG_STRICT_DEVMEM=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Restrict /dev/kmem access: "
- if $kconfig | grep -qi 'CONFIG_DEVKMEM=y'; then
- printf "\033[31mDisabled\033[m\n"
- else
- printf "\033[32mEnabled\033[m\n"
- fi
-
- printf "\n"
- printf "* grsecurity / PaX: "
-
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC=y'; then
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC_HIGH=y'; then
- printf "\033[32mHigh GRKERNSEC\033[m\n\n"
- elif $kconfig | grep -qi 'CONFIG_GRKERNSEC_MEDIUM=y'; then
- printf "\033[33mMedium GRKERNSEC\033[m\n\n"
- elif $kconfig | grep -qi 'CONFIG_GRKERNSEC_LOW=y'; then
- printf "\033[31mLow GRKERNSEC\033[m\n\n"
- else
- printf "\033[33mCustom GRKERNSEC\033[m\n\n"
- fi
-
- printf " Non-executable kernel pages: "
- if $kconfig | grep -qi 'CONFIG_PAX_KERNEXEC=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Prevent userspace pointer deref: "
- if $kconfig | grep -qi 'CONFIG_PAX_MEMORY_UDEREF=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Prevent kobject refcount overflow: "
- if $kconfig | grep -qi 'CONFIG_PAX_REFCOUNT=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Bounds check heap object copies: "
- if $kconfig | grep -qi 'CONFIG_PAX_USERCOPY=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Disable writing to kmem/mem/port: "
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC_KMEM=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Disable privileged I/O: "
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC_IO=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Harden module auto-loading: "
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC_MODHARDEN=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
-
- printf " Hide kernel symbols: "
- if $kconfig | grep -qi 'CONFIG_GRKERNSEC_HIDESYM=y'; then
- printf "\033[32mEnabled\033[m\n"
- else
- printf "\033[31mDisabled\033[m\n"
- fi
- else
- printf "\033[31mNo GRKERNSEC\033[m\n\n"
- printf " The grsecurity / PaX patchset is available here:\n"
- printf " http://grsecurity.net/\n"
- fi
-
- printf "\n"
- printf "* Kernel Heap Hardening: "
-
- if $kconfig | grep -qi 'CONFIG_KERNHEAP=y'; then
- if $kconfig | grep -qi 'CONFIG_KERNHEAP_FULLPOISON=y'; then
- printf "\033[32mFull KERNHEAP\033[m\n\n"
- else
- printf "\033[33mPartial KERNHEAP\033[m\n\n"
- fi
- else
- printf "\033[31mNo KERNHEAP\033[m\n\n"
- printf " The KERNHEAP hardening patchset is available here:\n"
- printf " https://www.subreption.com/kernheap/\n\n"
- fi
-}
-
-# --- FORTIFY_SOURCE subfunctions (start) ---
-
-# is FORTIFY_SOURCE supported by libc?
-FS_libc_check() {
- printf "* FORTIFY_SOURCE support available (libc) : "
-
- if [ "${#FS_chk_func_libc[@]}" != "0" ] ; then
- printf "\033[32mYes\033[m\n"
- else
- printf "\033[31mNo\033[m\n"
- exit 1
- fi
-}
-
-# was the binary compiled with FORTIFY_SOURCE?
-FS_binary_check() {
- printf "* Binary compiled with FORTIFY_SOURCE support: "
-
- for FS_elem_functions in $(seq 0 $((${#FS_functions[@]} - 1)))
- do
- if [[ ${FS_functions[$FS_elem_functions]} =~ _chk ]] ; then
- printf "\033[32mYes\033[m\n"
- return
- fi
- done
- printf "\033[31mNo\033[m\n"
- exit 1
-}
-
-FS_comparison() {
- echo
- printf " ------ EXECUTABLE-FILE ------- . -------- LIBC --------\n"
- printf " FORTIFY-able library functions | Checked function names\n"
- printf " -------------------------------------------------------\n"
-
- for FS_elem_libc in $(seq 0 $((${#FS_chk_func_libc[@]} - 1)))
- do
- for FS_elem_functions in $(seq 0 $((${#FS_functions[@]} - 1)))
- do
- FS_tmp_func=${FS_functions[$FS_elem_functions]}
- FS_tmp_libc=${FS_chk_func_libc[$FS_elem_libc]}
-
- if [[ $FS_tmp_func =~ ^$FS_tmp_libc$ ]] ; then
- printf " \033[31m%-30s\033[m | __%s%s\n" $FS_tmp_func $FS_tmp_libc $FS_end
- let FS_cnt_total++
- let FS_cnt_unchecked++
- elif [[ $FS_tmp_func =~ ^$FS_tmp_libc(_chk) ]] ; then
- printf " \033[32m%-30s\033[m | __%s%s\n" $FS_tmp_func $FS_tmp_libc $FS_end
- let FS_cnt_total++
- let FS_cnt_checked++
- fi
-
- done
- done
-}
-
-FS_summary() {
- echo
- printf "SUMMARY:\n\n"
- printf "* Number of checked functions in libc : ${#FS_chk_func_libc[@]}\n"
- printf "* Total number of library functions in the executable: ${#FS_functions[@]}\n"
- printf "* Number of FORTIFY-able functions in the executable : %s\n" $FS_cnt_total
- printf "* Number of checked functions in the executable : \033[32m%s\033[m\n" $FS_cnt_checked
- printf "* Number of unchecked functions in the executable : \033[31m%s\033[m\n" $FS_cnt_unchecked
- echo
-}
-
-# --- FORTIFY_SOURCE subfunctions (end) ---
-
-if !(command_exists readelf) ; then
- printf "\033[31mWarning: 'readelf' not found! It's required for most checks.\033[m\n\n"
- have_readelf=0
-fi
-
-# parse command-line arguments
-case "$1" in
-
- --version)
- version
- exit 0
- ;;
-
- --help)
- help
- exit 0
- ;;
-
- --dir)
- if [ "$3" = "-v" ] ; then
- verbose=true
- fi
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid directory.\033[m\n\n"
- exit 1
- fi
- # remove trailing slashes
- tempdir=`echo $2 | sed -e "s/\/*$//"`
- if [ ! -d $tempdir ] ; then
- printf "\033[31mError: The directory '$tempdir' does not exist.\033[m\n\n"
- exit 1
- fi
- cd $tempdir
- printf "RELRO STACK CANARY NX PIE RPATH RUNPATH FILE\n"
- for N in [A-Za-z]*; do
- if [ "$N" != "[A-Za-z]*" ]; then
- # read permissions?
- if [ ! -r $N ]; then
- printf "\033[31mError: No read permissions for '$tempdir/$N' (run as root).\033[m\n"
- else
- # ELF executable?
- out=`file $N`
- if [[ ! $out =~ ELF ]] ; then
- if [ "$verbose" = "true" ] ; then
- printf "\033[34m*** Not an ELF file: $tempdir/"
- file $N
- printf "\033[m"
- fi
- else
- filecheck $N
- if [ `find $tempdir/$N \( -perm -004000 -o -perm -002000 \) -type f -print` ]; then
- printf "\033[37;41m%s%s\033[m" $2 $N
- else
- printf "%s%s" $tempdir/ $N
- fi
- echo
- fi
- fi
- fi
- done
- exit 0
- ;;
-
- --file)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid file.\033[m\n\n"
- exit 1
- fi
- # does the file exist?
- if [ ! -e $2 ] ; then
- printf "\033[31mError: The file '$2' does not exist.\033[m\n\n"
- exit 1
- fi
- # read permissions?
- if [ ! -r $2 ] ; then
- printf "\033[31mError: No read permissions for '$2' (run as root).\033[m\n\n"
- exit 1
- fi
- # ELF executable?
- out=`file $2`
- if [[ ! $out =~ ELF ]] ; then
- printf "\033[31mError: Not an ELF file: "
- file $2
- printf "\033[m\n"
- exit 1
- fi
- printf "RELRO STACK CANARY NX PIE RPATH RUNPATH FILE\n"
- filecheck $2
- if [ `find $2 \( -perm -004000 -o -perm -002000 \) -type f -print` ] ; then
- printf "\033[37;41m%s%s\033[m" $2 $N
- else
- printf "%s" $2
- fi
- echo
- exit 0
- ;;
-
- --proc-all)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- cd /proc
- printf "* System-wide ASLR"
- aslrcheck
- printf "* Does the CPU support NX: "
- nxcheck
- printf " COMMAND PID RELRO STACK CANARY NX/PaX PIE\n"
- for N in [1-9]*; do
- if [ $N != $$ ] && readlink -q $N/exe > /dev/null; then
- printf "%16s" `head -1 $N/status | cut -b 7-`
- printf "%7d " $N
- proccheck $N
- echo
- fi
- done
- if [ ! -e /usr/bin/id ] ; then
- printf "\n\033[33mNote: If you are running 'checksec.sh' as an unprivileged user, you\n"
- printf " will not see all processes. Please run the script as root.\033[m\n\n"
- else
- if !(root_privs) ; then
- printf "\n\033[33mNote: You are running 'checksec.sh' as an unprivileged user.\n"
- printf " Too see all processes, please run the script as root.\033[m\n\n"
- fi
- fi
- exit 0
- ;;
-
- --proc)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid process name.\033[m\n\n"
- exit 1
- fi
- if !(isString "$2") ; then
- printf "\033[31mError: Please provide a valid process name.\033[m\n\n"
- exit 1
- fi
- cd /proc
- printf "* System-wide ASLR"
- aslrcheck
- printf "* Does the CPU support NX: "
- nxcheck
- printf " COMMAND PID RELRO STACK CANARY NX/PaX PIE\n"
- for N in `ps -Ao pid,comm | grep $2 | cut -b1-6`; do
- if [ -d $N ] ; then
- printf "%16s" `head -1 $N/status | cut -b 7-`
- printf "%7d " $N
- # read permissions?
- if [ ! -r $N/exe ] ; then
- if !(root_privs) ; then
- printf "\033[31mNo read permissions for '/proc/$N/exe' (run as root).\033[m\n\n"
- exit 1
- fi
- if [ ! `readlink $N/exe` ] ; then
- printf "\033[31mPermission denied. Requested process ID belongs to a kernel thread.\033[m\n\n"
- exit 1
- fi
- exit 1
- fi
- proccheck $N
- echo
- fi
- done
- exit 0
- ;;
-
- --proc-libs)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid process ID.\033[m\n\n"
- exit 1
- fi
- if !(isNumeric "$2") ; then
- printf "\033[31mError: Please provide a valid process ID.\033[m\n\n"
- exit 1
- fi
- cd /proc
- printf "* System-wide ASLR"
- aslrcheck
- printf "* Does the CPU support NX: "
- nxcheck
- printf "* Process information:\n\n"
- printf " COMMAND PID RELRO STACK CANARY NX/PaX PIE\n"
- N=$2
- if [ -d $N ] ; then
- printf "%16s" `head -1 $N/status | cut -b 7-`
- printf "%7d " $N
- # read permissions?
- if [ ! -r $N/exe ] ; then
- if !(root_privs) ; then
- printf "\033[31mNo read permissions for '/proc/$N/exe' (run as root).\033[m\n\n"
- exit 1
- fi
- if [ ! `readlink $N/exe` ] ; then
- printf "\033[31mPermission denied. Requested process ID belongs to a kernel thread.\033[m\n\n"
- exit 1
- fi
- exit 1
- fi
- proccheck $N
- echo
- libcheck $N
- fi
- exit 0
- ;;
-
- --kernel)
- cd /proc
- printf "* Kernel protection information:\n\n"
- kernelcheck
- exit 0
- ;;
-
- --fortify-file)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid file.\033[m\n\n"
- exit 1
- fi
- # does the file exist?
- if [ ! -e $2 ] ; then
- printf "\033[31mError: The file '$2' does not exist.\033[m\n\n"
- exit 1
- fi
- # read permissions?
- if [ ! -r $2 ] ; then
- printf "\033[31mError: No read permissions for '$2' (run as root).\033[m\n\n"
- exit 1
- fi
- # ELF executable?
- out=`file $2`
- if [[ ! $out =~ ELF ]] ; then
- printf "\033[31mError: Not an ELF file: "
- file $2
- printf "\033[m\n"
- exit 1
- fi
- if [ -e /lib/libc.so.6 ] ; then
- FS_libc=/lib/libc.so.6
- elif [ -e /lib64/libc.so.6 ] ; then
- FS_libc=/lib64/libc.so.6
- elif [ -e /lib/i386-linux-gnu/libc.so.6 ] ; then
- FS_libc=/lib/i386-linux-gnu/libc.so.6
- elif [ -e /lib/x86_64-linux-gnu/libc.so.6 ] ; then
- FS_libc=/lib/x86_64-linux-gnu/libc.so.6
- else
- printf "\033[31mError: libc not found.\033[m\n\n"
- exit 1
- fi
-
- FS_chk_func_libc=( $(readelf -s $FS_libc | grep _chk@@ | awk '{ print $8 }' | cut -c 3- | sed -e 's/_chk@.*//') )
- FS_functions=( $(readelf -s $2 | awk '{ print $8 }' | sed 's/_*//' | sed -e 's/@.*//') )
-
- FS_libc_check
- FS_binary_check
- FS_comparison
- FS_summary
-
- exit 0
- ;;
-
- --fortify-proc)
- if [ $have_readelf -eq 0 ] ; then
- exit 1
- fi
- if [ -z "$2" ] ; then
- printf "\033[31mError: Please provide a valid process ID.\033[m\n\n"
- exit 1
- fi
- if !(isNumeric "$2") ; then
- printf "\033[31mError: Please provide a valid process ID.\033[m\n\n"
- exit 1
- fi
- cd /proc
- N=$2
- if [ -d $N ] ; then
- # read permissions?
- if [ ! -r $N/exe ] ; then
- if !(root_privs) ; then
- printf "\033[31mNo read permissions for '/proc/$N/exe' (run as root).\033[m\n\n"
- exit 1
- fi
- if [ ! `readlink $N/exe` ] ; then
- printf "\033[31mPermission denied. Requested process ID belongs to a kernel thread.\033[m\n\n"
- exit 1
- fi
- exit 1
- fi
- if [ -e /lib/libc.so.6 ] ; then
- FS_libc=/lib/libc.so.6
- elif [ -e /lib64/libc.so.6 ] ; then
- FS_libc=/lib64/libc.so.6
- elif [ -e /lib/i386-linux-gnu/libc.so.6 ] ; then
- FS_libc=/lib/i386-linux-gnu/libc.so.6
- elif [ -e /lib/x86_64-linux-gnu/libc.so.6 ] ; then
- FS_libc=/lib/x86_64-linux-gnu/libc.so.6
- else
- printf "\033[31mError: libc not found.\033[m\n\n"
- exit 1
- fi
- printf "* Process name (PID) : %s (%d)\n" `head -1 $N/status | cut -b 7-` $N
- FS_chk_func_libc=( $(readelf -s $FS_libc | grep _chk@@ | awk '{ print $8 }' | cut -c 3- | sed -e 's/_chk@.*//') )
- FS_functions=( $(readelf -s $2/exe | awk '{ print $8 }' | sed 's/_*//' | sed -e 's/@.*//') )
-
- FS_libc_check
- FS_binary_check
- FS_comparison
- FS_summary
- fi
- exit 0
- ;;
-
- *)
- if [ "$#" != "0" ] ; then
- printf "\033[31mError: Unknown option '$1'.\033[m\n\n"
- fi
- help
- exit 1
- ;;
-esac
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-19 22:27:27 +0000