[yocto] [meta-security][PATCH] checksec: Remove old script
akuster
akuster at mvista.com
Mon Feb 11 18:01:14 PST 2019
merged
On 1/24/19 11:56 PM, Scott Ellis wrote:
> Should have been removed in previous patch.
>
> Signed-off-by: Scott Ellis <scott at jumpnowtek.com>
> ---
> recipes-security/checksec/files/checksec.sh | 882 ----------------------------
> 1 file changed, 882 deletions(-)
> delete mode 100644 recipes-security/checksec/files/checksec.sh
>
> diff --git a/recipes-security/checksec/files/checksec.sh b/recipes-security/checksec/files/checksec.sh
> deleted file mode 100644
> index dd1f72e..0000000
> --- a/recipes-security/checksec/files/checksec.sh
> +++ /dev/null
> @@ -1,882 +0,0 @@
> -#!/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 at .*//') )
> - 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 at .*//') )
> - 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
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