mirror of
https://github.com/CISOfy/lynis.git
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215 lines
33 KiB
Bash
215 lines
33 KiB
Bash
#!/bin/sh
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#################################################################################
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#
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# Lynis
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# ------------------
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#
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# Copyright 2007-2015, Michael Boelen, CISOfy (michael.boelen@cisofy.com)
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# Web site: https://cisofy.com
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#
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# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
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# welcome to redistribute it under the terms of the GNU General Public License.
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# See LICENSE file for usage of this software.
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#
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#################################################################################
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#
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# * Check which binaries and tools are installed
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# * With the results a customized scan can be performed for every single system.
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#
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#################################################################################
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#
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COMPILER_INSTALLED=0
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IDLE_SESSION_KILLER_INSTALLED=0
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MALWARE_SCANNER_INSTALLED=0
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#
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#################################################################################
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#
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if [ ${CHECK_BINARIES} -eq 1 ]; then
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InsertSection "System Tools"
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Display --indent 2 --text "- Scanning available tools..."
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logtext "Start scanning for available audit binaries and tools..."
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# Test : FILE-7502
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# Description : Check all system binaries
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# Notes : Always perform test, dependency for many other tests
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Register --test-no FILE-7502 --weight L --network NO --description "Check all system binaries"
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BINARY_PATHS_FOUND=""; N=0
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Display --indent 2 --text "- Checking system binaries..."
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logtext "Status: Starting binary scan..."
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for SCANDIR in ${BINPATHS}; do
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logtext "Test: Check if directory exists"
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ORGPATH=""
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if [ -d ${SCANDIR} ]; then
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SKIPDIR=0
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if [ -L ${SCANDIR} ]; then
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logtext "Result: directory exists, but is actually a symlink"
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ShowSymlinkPath ${SCANDIR}
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if [ ${FOUNDPATH} -eq 1 ]; then
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if [ ! "${SYMLINK}" = "" -a -d ${SYMLINK} ]; then
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# Set path to new location
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logtext "Result: found the path behind this symlink (${SCANDIR} --> ${sFILE})"
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ORGPATH="${SCANDIR}"
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SCANDIR="${sFILE}"
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else
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SKIPDIR=1; logtext "Result: Symlink variable empty, or directory to symlink is non-existing"
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fi
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else
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SKIPDIR=1; logtext "Result: Could not find the location of this symlink, or is not a directory"
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fi
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fi
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# Add a space to make sure we discover a related directory if it was already scanned
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FIND=`echo ${BINARY_PATHS_FOUND} | grep ", ${SCANDIR}"`
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if [ ! "${FIND}" = "" ]; then
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SKIPDIR=1; logtext "Result: Skipping this directory as it was already scanned"
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fi
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if [ ${SKIPDIR} -eq 0 ]; then
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logtext "Test: Checking binaries in directory ${SCANDIR}"
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BINARY_PATHS_FOUND="${BINARY_PATHS_FOUND}, ${SCANDIR}"
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logtext "Directory ${SCANDIR} exists. Starting directory scanning..."
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FIND=`ls ${SCANDIR}`
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for I in ${FIND}; do
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N=`expr ${N} + 1`
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BINARY="${SCANDIR}/${I}"
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DISCOVERED_BINARIES="${DISCOVERED_BINARIES}${BINARY} "
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# Optimized, much quicker (limited file access needed)
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case ${I} in
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aa-status) APPARMORFOUND=1; AASTATUSBINARY=${BINARY}; logtext " Found known binary: aa-status (apparmor component) - ${BINARY}" ;;
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afick.pl) AFICKFOUND=1; AFICKBINARY=${BINARY}; logtext " Found known binary: afick (file integrity checker) - ${BINARY}" ;;
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aide) AIDEFOUND=1; AIDEBINARY=${BINARY}; logtext " Found known binary: aide (file integrity checker) - ${BINARY}" ;;
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apache2) if [ -f ${BINARY} ]; then HTTPDFOUND=1; HTTPDBINARY=${BINARY}; logtext " Found known binary: apache2 (web server) - ${BINARY}"; fi ;;
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auditd) AUDITDFOUND=1; AUDITDBINARY=${BINARY}; logtext " Found known binary: auditd (audit framework) - ${BINARY}" ;;
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awk) if [ -f ${BINARY} ]; then AWKFOUND=1; AWKBINARY=${BINARY}; logtext " Found known binary: awk (string tool) - ${BINARY}"; fi ;;
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dig) DIGFOUND=1; DIGBINARY=${BINARY}; logtext " Found known binary: dig (nameservice tool) - ${BINARY}" ;;
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as) ASFOUND=1; ASBINARY="${BINARY}"; COMPILER_INSTALLED=1; logtext " Found known binary: as (compiler) - ${BINARY}" ;;
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auditctl) AUDITCTLFOUND=1; AUDITCTLBINARY="${BINARY}"; logtext " Found known binary: auditctl (control utility for audit daemon) - ${BINARY}" ;;
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autolog) AUTOLOGFOUND=1; AUTOLOGBINARY="${BINARY}"; IDLE_SESSION_KILLER_INSTALLED=1; logtext " Found known binary: autolog (idle session killer) - ${BINARY}" ;;
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debsecan) DEBSECANBINARY="${BINARY}"; logtext " Found known binary: debsecan (package vulnerability checking) - ${BINARY}" ;;
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debsums) DEBSUMSBINARY="${BINARY}"; logtext " Found known binary: debsums (package integrity checking) - ${BINARY}" ;;
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docker) DOCKERBINARY="${BINARY}"; logtext " Found known binary: docker (container technology) - ${BINARY}" ;;
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chkconfig) CHKCONFIGFOUND=1; CHKCONFIGBINARY=${BINARY}; logtext " Found known binary: chkconfig (administration tool) - ${BINARY}" ;;
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clamscan) CLAMSCANFOUND=1; CLAMSCANBINARY=${BINARY}; logtext " Found known binary: clamscan (AV scanner) - ${BINARY}" ;;
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cfagent) CFAGENTFOUND=1; CFAGENTBINARY="${BINARY}"; FILE_INT_TOOL_FOUND=1; logtext " Found known binary: cfengine agent (configuration tool) - ${BINARY}" ;;
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chkrootkit) CHKROOTKITFOUND=1; CHKROOTKITBINARY="${BINARY}"; MALWARE_SCANNER_INSTALLED=1; logtext " Found known binary: chkrootkit (malware scanner) - ${BINARY}" ;;
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comm) COMMBINARY="${BINARY}"; logtext " Found known binary: comm (file compare) - ${BINARY}" ;;
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csum) CSUMFOUND=1; CSUMBINARY="${BINARY}"; logtext " Found known binary: csum (hashing tool on AIX) - ${BINARY}" ;;
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curl) CURLFOUND=1; CURLBINARY="${BINARY}"; logtext " Found known binary: curl (browser) - ${BINARY}" ;;
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dig) if [ -f ${BINARY} ]; then DIGFOUND=1; DIGBINARY=${BINARY}; logtext " Found known binary: dig (network/dns tool) - ${BINARY}"; fi ;;
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dnsdomainname) DNSDOMAINNAMEFOUND=1; DNSDOMAINNAMEBINARY="${BINARY}"; logtext " Found known binary: dnsdomainname (DNS domain) - ${BINARY}" ;;
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domainname) DOMAINNAMEFOUND=1; DOMAINNAMEBINARY="${BINARY}"; logtext " Found known binary: domainname (NIS domain) - ${BINARY}" ;;
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dpkg) DPKGBINARY="${BINARY}"; logtext " Found known binary: dpkg (package management) - ${BINARY}" ;;
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egrep) EGREPFOUND=1; EGREPBINARY=${BINARY}; logtext " Found known binary: egrep (text search) - ${BINARY}" ;;
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exim) EXIMFOUND=1; EXIMBINARY="${BINARY}"; EXIMVERSION=`${BINARY} -bV | grep 'Exim version' | awk '{ print $3 }' | xargs`; logtext "Found ${BINARY} (version ${EXIMVERSION})" ;;
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find) FINDFOUND=1; FINDBINARY="${BINARY}"; logtext " Found known binary: find (search tool) - ${BINARY}" ;;
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g++) GPLUSPLUSFOUND=1; GPLUSPLUSBINARY="${BINARY}"; COMPILER_INSTALLED=1; logtext " Found known binary: g++ (compiler) - ${BINARY}" ;;
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# additional file check due to existance /usr/libexec/gcc (directory)
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gcc) if [ -f ${BINARY} ]; then GCCBINARY="${BINARY}"; COMPILER_INSTALLED=1; logtext " Found known binary: gcc (compiler) - ${BINARY}"; fi ;;
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grep) GREPFOUND=1; GREPBINARY=${BINARY}; logtext " Found known binary: grep (text search) - ${BINARY}" ;;
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grub2-install) GRUB2INSTALLFOUND=1; GRUB2INSTALLBINARY=${BINARY}; logtext " Found known binary: grub2-install (installer for boot loader) - ${BINARY}" ;;
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httpd2-prefork) HTTPDFOUND=1; HTTPDBINARY=${BINARY}; logtext " Found known binary: apache2 (web server) - ${BINARY}" ;;
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initctl) INITCTLBINARY=${BINARY}; SERVICE_MANAGER="upstart"; logtext " Found known binary: initctl (client to upstart init) - ${BINARY}" ;;
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lsvg) LSVGFOUND=1; LVSGBINARY=${BINARY}; logtext " Found known binary: lsvg (volume manager) - ${BINARY}" ;;
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lvdisplay) LVDISPLAYBINARY="${BINARY}"; logtext " Found known binary: lvdisplay (LVM tool) - ${BINARY}" ;;
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named-checkconf) NAMEDCHECKCONFIGFOUND=1; NAMEDCHECKCONFBINARY="${BINARY}"; logtext " Found known binary: named-checkconf (BIND configuration analyzer) - ${BINARY}" ;;
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getcap) GETCAPFOUND=1; GETCAPBINARY="${BINARY}"; logtext " Found known binary: getcap (kernel capabilities) - ${BINARY}" ;;
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grpck) GRPCKFOUND=1; GRPCKBINARY="${BINARY}"; logtext " Found known binary: grpck (consistency checker) - ${BINARY}" ;;
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httpd) if [ -f ${BINARY} ]; then HTTPDFOUND=1; HTTPDBINARY="${BINARY}"; logtext " Found known binary: httpd (web server) - ${BINARY}"; fi ;;
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ip) IPFOUND=1; IPBINARY="${BINARY}"; logtext " Found known binary: ip (IP configuration) - ${BINARY}" ;;
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ipf) IPFFOUND=1; IPFBINARY="${BINARY}"; logtext " Found known binary: ipf (firewall) - ${BINARY}" ;;
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ifconfig) IFCONFIGFOUND=1; IFCONFIGBINARY="${BINARY}"; logtext " Found known binary: ipconfig (IP configuration) - ${BINARY}" ;;
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iptables) if [ -f ${BINARY} ]; then IPTABLESFOUND=1; IPTABLESBINARY="${BINARY}"; logtext " Found known binary: iptables (firewall) - ${BINARY}"; fi ;;
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journalctl) JOURNALCTLBINARY="${BINARY}"; logtext " Found known binary: journalctl (systemd journal) - ${BINARY}"; ;;
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kldstat) KLDSTATFOUND=1; KLDSTATBINARY="${BINARY}"; logtext " Found known binary: kldstat (kernel modules) - ${BINARY}" ;;
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kstat) KSTATFOUND=1; KSTATBINARY="${BINARY}"; logtext " Found known binary: kstat (kernel statistics) - ${BINARY}" ;;
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launchctl) LAUNCHCTLBINARY="${BINARY}"; SERVICE_MANAGER="launchd"; logtext " Found known binary: launchctl (launchd client) - ${BINARY}" ;;
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locate) LOCATEFOUND=1; LOCATEBINARY="${BINARY}"; logtext " Found known binary: locate (file database) - ${BINARY}" ;;
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logrotate) LOGROTATEFOUND=1; LOGROTATEBINARY="${BINARY}"; logtext " Found known binary: logrotate (log rotation tool) - ${BINARY}" ;;
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ls) LSFOUND=1; LSBINARY="${BINARY}"; logtext " Found known binary: ls (file listing) - ${BINARY}" ;;
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lsattr) LSATTRFOUND=1; LSATTRBINARY="${BINARY}"; logtext " Found known binary: lsattr (file attributes) - ${BINARY}" ;;
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lsmod) LSMODFOUND=1; LSMODBINARY="${BINARY}"; logtext " Found known binary: lsmod (kernel modules) - ${BINARY}" ;;
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lsof) LSOFFOUND=1; LSOFBINARY="${BINARY}"; logtext " Found known binary: lsof (open files) - ${BINARY}" ;;
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lynx) LYNXFOUND=1; LYNXBINARY="${BINARY}"; LYNXVERSION=`${BINARY} -version | grep "^Lynx Version" | cut -d ' ' -f3`; logtext "Found known binary: lynx (browser) - ${BINARY} (version ${LYNXVERSION})" ;;
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md5) MD5FOUND=1; MD5BINARY="${BINARY}"; logtext " Found known binary: md5 (hash tool) - ${BINARY}" ;;
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md5sum) MD5FOUND=1; MD5BINARY="${BINARY}"; logtext " Found known binary: md5sum (hash tool) - ${BINARY}" ;;
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mtree) MTREEFOUND=1; MTREEBINARY="${BINARY}"; logtext " Found known binary: mtree (mapping directory tree) - ${BINARY}" ;;
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mysql) MYSQLCLIENTFOUND=1; MYSQLCLIENTBINARY="${BINARY}"; MYSQLCLIENTVERSION=`${BINARY} -V | awk '{ if ($4=="Distrib") { print $5 }}' | sed 's/,//g'` ; logtext "Found ${BINARY} (version: ${MYSQLCLIENTVERSION})" ;;
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netstat) NETSTATFOUND=1; NETSTATBINARY="${BINARY}"; logtext " Found known binary: netstat (network statistics) - ${BINARY}" ;;
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nft) NFTFOUND=1; NFTBINARY="${BINARY}"; logtext " Found known binary: nft (nftables client) - ${BINARY}" ;;
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nmap) NMAPFOUND=1; NMAPBINARY="${BINARY}"; NMAPVERSION=`${BINARY} -V | grep "^Nmap version" | awk '{ print $3 }'`; logtext "Found ${BINARY} (version ${NMAPVERSION})" ;;
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ntpq) NTPQFOUND=1; NTPQBINARY="${BINARY}"; logtext " Found known binary ntpq (time daemon client) - ${BINARY}" ;;
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osiris) OSIRISFOUND=1; OSIRISBINARY="${BINARY}"; logtext " Found known binary: osiris - ${BINARY}" ;;
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openssl) OPENSSLFOUND=1; OPENSSLBINARY="${BINARY}"; OPENSSLVERSION=`${BINARY} version 2> /dev/null | head -n 1 | awk '{ print $2 }' | xargs`; logtext "Found ${BINARY} (version ${OPENSSLVERSION})" ;;
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pacman) PACMANFOUND=1; PACMANBINARY="${BINARY}"; logtext " Found known binary: pacman (package manager) - ${BINARY}" ;;
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perl) PERLFOUND=1; PERLBINARY="${BINARY}"; PERLVERSION=`${BINARY} -V:version | sed 's/^version=//' | sed 's/;//' | xargs`; logtext "Found ${BINARY} (version ${PERLVERSION})" ;;
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php) PHPFOUND=1; PHPBINARY="${BINARY}"; PHPVERSION=`${BINARY} -v | awk '{ if ($1=="PHP") { print $2 }}' | head -1`; logtext "Found known binary: php (programming language intrepreter) - ${BINARY} (version ${PHPVERSION})" ;;
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pkg_admin) PKGADMINBINARY="${BINARY}"; logtext " Found known binary: pkg_admin (software package administration) - ${BINARY}" ;;
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postconf) POSTCONFFOUND=1; POSTCONFBINARY="${BINARY}"; logtext " Found known binary: postconf (postfix configuration) - ${BINARY}" ;;
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postfix) POSTFIXFOUND=1; POSTFIXBINARY="${BINARY}"; logtext " Found known binary: postfix (postfix binary) - ${BINARY}" ;;
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prelink) PRELINKFOUND=1; PRELINKBINARY="${BINARY}"; logtext " Found known binary: prelink (system optimizer) - ${BINARY}" ;;
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pfctl) PFCTLFOUND=1; PFCTLBINARY="${BINARY}"; logtext " Found known binary: pfctl (client to pf firewall) - ${BINARY}" ;;
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ps) PSFOUND=1; PSBINARY="${BINARY}"; logtext " Found known binary: ps (process listing) - ${BINARY}" ;;
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puppet) PUPPETFOUND=1; PUPPETBINARY="${BINARY}"; logtext " Found known binary: puppet (automation tooling) - ${BINARY}" ;;
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puppetmasterd) PUPPETMASTERDFOUND=1; PUPPETMASTERDBINARY="${BINARY}"; logtext " Found known binary: puppetmasterd (puppet master daemon) - ${BINARY}" ;;
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python) PYTHONBINARY="${BINARY}"; logtext " Found known binary: python (programming language intepreter) - ${BINARY}" ;;
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readlink) READLINKFOUND=1; READLINKBINARY="${BINARY}"; logtext " Found known binary: readlink (follows symlinks) - ${BINARY}" ;;
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rkhunter) RKHUNTERFOUND=1; RKHUNTERBINARY="${BINARY}"; MALWARE_SCANNER_INSTALLED=1; logtext " Found known binary: rkhunter (malware scanner) - ${BINARY}" ;;
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rootsh) ROOTSHFOUND=1; ROOTSHBINARY="${BINARY}"; logtext " Found known binary: rootsh (wrapper for shells) - ${BINARY}" ;;
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rpcinfo) RPCINFOFOUND=1; RPCINFOBINARY="${BINARY}"; logtext " Found known binary: rpcinfo (RPC information) - ${BINARY}" ;;
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rpm) RPMFOUND=1; RPMBINARY="${BINARY}"; logtext " Found known binary: rpm (package manager) - ${BINARY}" ;;
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runlevel) RUNLEVELFOUND=1; RUNLEVELBINARY="${BINARY}"; logtext " Found known binary: runlevel (system utility) - ${BINARY}" ;;
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salt-master) SALTMASTERFOUND=1; SALTMASTERBINARY="${BINARY}"; logtext " Found known binary: salt-master (SaltStack master) - ${BINARY}" ;;
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salt-minion) SALTMINIONFOUND=1; SALTMINIONBINARY="${BINARY}"; logtext " Found known binary: salt-minion (SaltStack client) - ${BINARY}" ;;
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samhain) SAMHAINFOUND=1; SAMHAINBINARY="${BINARY}"; logtext " Found known binary: samhain (integrity tool) - ${BINARY}" ;;
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sestatus) SESTATUSFOUND=1; SESTATUSBINARY="${BINARY}"; logtext " Found known binary: sestatus (SELinux client) - ${BINARY}" ;;
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slocate) LOCATEFOUND=1; LOCATEBINARY="${BINARY}"; logtext " Found known binary: slocate (file database) - ${BINARY}" ;;
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smbd) SMBDFOUND=1; SMBDBINARY="${BINARY}"; if [ "${OS}" = "MacOS" ]; then SMBDVERSION="unknown"; else SMBDVERSION=`${BINARY} -V | grep "^Version" | awk '{ print $2 }'`; fi; logtext "Found ${BINARY} (version ${SMBDVERSION})" ;;
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smtpctl) SMTPCTLBINARY="${BINARY}"; logtext " Found known binary: smtpctl (OpenSMTPD client) - ${BINARY}" ;;
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showmount) SHOWMOUNTFOUND=1; SHOWMOUNTBINARY="${BINARY}"; logtext " Found known binary: showmount (NFS mounts) - ${BINARY}" ;;
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sockstat) SOCKSTATFOUND=1; SOCKSTATBINARY="${BINARY}"; logtext " Found known binary: sockstat (open network sockets) - ${BINARY}" ;;
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squid) SQUIDFOUND=1; SQUIDBINARY="${BINARY}"; logtext " Found known binary: squid (proxy) - ${BINARY}" ;;
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ss) SSFOUND=1; SSBINARY="${BINARY}"; logtext " Found known binary: ss (show sockets) - ${BINARY}" ;;
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sshd) SSHDFOUND=1; SSHDBINARY="${BINARY}"; SSHDVERSION=`${BINARY} -t -d 2>&1 | head -n 1 | awk '{ print $4 }' | cut -d '_' -f2 | tr -d '\r'`; logtext "Found ${BINARY} (version ${SSHDVERSION})" ;;
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stat) STATFOUND=1; STATBINARY="${BINARY}"; logtext " Found known binary: stat (file information) - ${BINARY}" ;;
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strings) STRINGSFOUND=1; STRINGSBINARY="${BINARY}"; logtext " Found known binary: strings (text strings search) - ${BINARY}" ;;
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sha1|sha1sum|shasum) SHA1SUMFOUND=1; SHA1SUMBINARY="${BINARY}"; logtext " Found known binary: sha1/sha1sum/shasum (crypto hashing) - ${BINARY}" ;;
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ssh-keyscan) SSHKEYSCANFOUND=1; SSHKEYSCANBINARY="${BINARY}"; logtext " Found known binary: ssh-keyscan (scanner for SSH keys) - ${BINARY}" ;;
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sysctl) SYSCTLFOUND=1; SYSCTLBINARY="${BINARY}"; logtext " Found known binary: sysctl (kernel parameters) - ${BINARY}" ;;
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syslog-ng) SYSLOGNGFOUND=1; SYSLOGNGBINARY="${BINARY}"; SYSLOGNGVERSION=`${BINARY} -V 2>&1 | grep "^syslog-ng" | awk '{ print $2 }'`; logtext "Found ${BINARY} (version ${SYSLOGNGVERSION})" ;;
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systemctl) SYSTEMCTLFOUND=1; SYSTEMCTLBINARY="${BINARY}"; SERVICE_MANAGER="systemd"; logtext " Found known binary: systemctl (client to systemd) - ${BINARY}" ;;
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timedatectl) TIMEDATECTLFOUND=1; TIMEDATECTL="${BINARY}"; logtext " Found known binary: timedatectl (timedate client) - ${BINARY}" ;;
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tripwire) TRIPWIREFOUND=1; TRIPWIREBINARY="${BINARY}"; logtext " Found known binary: tripwire (file integrity) - ${BINARY}" ;;
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tune2fs) TUNE2FSFOUND=1; TUNE2FSBINARY="${BINARY}"; logtext " Found known binary: tune2fs (file system tool) - ${BINARY}" ;;
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vgdisplay) VGDISPLAYFOUND=1; VGDISPLAYBINARY="${BINARY}"; logtext " Found known binary: vgdisplay (LVM tool) - ${BINARY}" ;;
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vmtoolsd) VMWARETOOLSFOUND=1; VMWARETOOLSDBINARY="${BINARY}"; logtext " Found known binary: vmtoolsd (VMWare tools) - ${BINARY}" ;;
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wget) WGETFOUND=1; WGETBINARY="${BINARY}"; WGETVERSION=`${BINARY} -V | grep "^GNU Wget" | awk '{ print $3 }'`; logtext "Found ${BINARY} (version ${WGETVERSION})" ;;
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yum) YUMFOUND=1; YUMBINARY="${BINARY}"; logtext " Found known binary: yum (package manager) - ${BINARY}" ;;
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zgrep) ZGREPFOUND=1; ZGREPBINARY=${BINARY}; logtext " Found known binary: zgrep (text search for compressed files) - ${BINARY}" ;;
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zypper) ZYPPERFOUND=1; ZYPPERBINARY="${BINARY}"; logtext " Found known binary: zypper (package manager) - ${BINARY}" ;;
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esac
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done
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else
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logtext "Result: Directory ${SCANDIR} skipped"
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if [ ! "${ORGPATH}" = "" ]; then TEXT="${ORGPATH} (links to ${SCANDIR})"; else TEXT="${SCANDIR}"; fi
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fi
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else
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logtext "Result: Directory ${SCANDIR} does NOT exist"
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fi
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logtextbreak
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done
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BINARY_PATHS_FOUND=`echo ${BINARY_PATHS_FOUND} | sed 's/^, //g' | sed 's/ //g'`
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logtext "Discovered directories: ${BINARY_PATHS_FOUND}"
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report "binary_paths=${BINARY_PATHS_FOUND}"
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BINARY_SCAN_FINISHED=1
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logtext "Result: found ${N} binaries"
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report "binaries_count=${N}"
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else
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logtext "Result: checking of binaries skipped in this mode"
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fi
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#
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#================================================================================
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# Lynis - Copyright 2007-2015, Michael Boelen, CISOfy - https://cisofy.com
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