diff options
author | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2019-04-05 22:28:33 +0300 |
---|---|---|
committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2019-04-05 22:31:28 +0300 |
commit | 193236933b0f4ab91b1625b64e2187e2db4e0e8f (patch) | |
tree | e12769d7c76d8b0517d6de3d3c72189753d253ed /meta-security/recipes-security/checksec/files/checksec.sh | |
parent | bd93df9478f2f56ffcbc8cb88f1709c735dcd85b (diff) | |
download | openbmc-193236933b0f4ab91b1625b64e2187e2db4e0e8f.tar.xz |
reset upstream subtrees to HEAD
Reset the following subtrees on HEAD:
poky: 8217b477a1(master)
meta-xilinx: 64aa3d35ae(master)
meta-openembedded: 0435c9e193(master)
meta-raspberrypi: 490a4441ac(master)
meta-security: cb6d1c85ee(master)
Squashed patches:
meta-phosphor: drop systemd 239 patches
meta-phosphor: mrw-api: use correct install path
Change-Id: I268e2646d9174ad305630c6bbd3fbc1a6105f43d
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'meta-security/recipes-security/checksec/files/checksec.sh')
-rw-r--r-- | meta-security/recipes-security/checksec/files/checksec.sh | 882 |
1 files changed, 0 insertions, 882 deletions
diff --git a/meta-security/recipes-security/checksec/files/checksec.sh b/meta-security/recipes-security/checksec/files/checksec.sh deleted file mode 100644 index dd1f72e54..000000000 --- a/meta-security/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@.*//') ) - 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 |