mirror of https://github.com/CISOfy/lynis.git
[KRNL-5820] additional path for security/limits.conf
Changes the user facing output to display a full path, allowing the user to better grasp which security/limits.conf file is affected. fix issue #1264
This commit is contained in:
Robert Frohl
parent
546693636d
commit
14fd7dabc8
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@ -532,62 +532,67 @@
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fi
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fi
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# Limits option
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LogText "Test: Checking presence ${ROOTDIR}etc/security/limits.conf"
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if [ -f "${ROOTDIR}etc/security/limits.conf" ]; then
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LogText "Result: file ${ROOTDIR}etc/security/limits.conf exists"
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LogText "Test: Checking if core dumps are disabled in ${ROOTDIR}etc/security/limits.conf and ${LIMITS_DIRECTORY}/*"
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# using find instead of grep -r to stay POSIX compliant. On AIX and HPUX grep -r is not available.
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FIND1=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="soft" && $3=="core" && $4=="0") { print "soft core disabled" } else if ($1=="*" && $2=="soft" && $3=="core" && $4!="0") { print "soft core enabled" } }' | ${TAILBINARY} -1)
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FIND2=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="hard" && $3=="core" && $4=="0") { print "hard core disabled" } else if ($1=="*" && $2=="hard" && $3=="core" && $4!="0") { print "hard core enabled" } }' | ${TAILBINARY} -1)
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FIND3=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="-" && $3=="core" && $4=="0") { print "core dumps disabled" } else if ($1=="*" && $2=="-" && $3=="core" && $4!="0") { print "core dumps enabled" } }' | ${TAILBINARY} -1)
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ROOTDIR_BACKUP=$ROOTDIR
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for ALTERNATIVE_DIR in "/usr/" "/"; do
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ROOTDIR=$ALTERNATIVE_DIR
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LogText "Test: Checking presence ${ROOTDIR}etc/security/limits.conf"
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if [ -f "${ROOTDIR}etc/security/limits.conf" ]; then
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LogText "Result: file ${ROOTDIR}etc/security/limits.conf exists"
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LogText "Test: Checking if core dumps are disabled in ${ROOTDIR}etc/security/limits.conf and ${LIMITS_DIRECTORY}/*"
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# using find instead of grep -r to stay POSIX compliant. On AIX and HPUX grep -r is not available.
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FIND1=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="soft" && $3=="core" && $4=="0") { print "soft core disabled" } else if ($1=="*" && $2=="soft" && $3=="core" && $4!="0") { print "soft core enabled" } }' | ${TAILBINARY} -1)
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FIND2=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="hard" && $3=="core" && $4=="0") { print "hard core disabled" } else if ($1=="*" && $2=="hard" && $3=="core" && $4!="0") { print "hard core enabled" } }' | ${TAILBINARY} -1)
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FIND3=$(${FINDBINARY} "${ROOTDIR}etc/security/limits.conf" "${LIMITS_DIRECTORY}" -type f -exec ${CAT_BINARY} {} \; 2> /dev/null | ${GREPBINARY} -v "^$" | ${AWKBINARY} '{ if ($1=="*" && $2=="-" && $3=="core" && $4=="0") { print "core dumps disabled" } else if ($1=="*" && $2=="-" && $3=="core" && $4!="0") { print "core dumps enabled" } }' | ${TAILBINARY} -1)
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# When "* - core [value]" is used, then this sets both soft and core. In that case we set the values, as they the type 'hard' and 'soft' will not be present in the configuration file.
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if [ "${FIND3}" = "core dumps disabled" ]; then
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FIND1="soft core disabled"
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FIND2="hard core disabled"
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elif [ "${FIND3}" = "core dumps enabled" ]; then
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FIND1="soft core enabled"
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FIND2="hard core enabled"
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fi
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IS_SOFTCORE_DISABLED="$(if [ "${FIND1}" = "soft core disabled" ]; then ${ECHOCMD} DISABLED; elif [ "${FIND1}" = "soft core enabled" ]; then ${ECHOCMD} ENABLED; else ${ECHOCMD} ${STATUS_DEFAULT}; fi)"
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IS_HARDCORE_DISABLED="$(if [ "${FIND2}" = "hard core disabled" ]; then ${ECHOCMD} DISABLED; elif [ "${FIND2}" = "hard core enabled" ]; then ${ECHOCMD} ENABLED; else ${ECHOCMD} ${STATUS_DEFAULT}; fi)"
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if [ "${FIND2}" = "hard core disabled" ]; then
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LogText "Result: core dumps are hard disabled"
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Display --indent 4 --text "- 'hard' configuration in security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "GREEN"
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if [ "${FIND1}" = "soft core disabled" ]; then
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Display --indent 4 --text "- 'soft' configuration in security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "GREEN"
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else
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Display --indent 4 --text "- 'soft' config in security/limits.conf (implicit)" --result "${STATUS_DISABLED}" --color "GREEN"
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# When "* - core [value]" is used, then this sets both soft and core. In that case we set the values, as they the type 'hard' and 'soft' will not be present in the configuration file.
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if [ "${FIND3}" = "core dumps disabled" ]; then
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FIND1="soft core disabled"
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FIND2="hard core disabled"
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elif [ "${FIND3}" = "core dumps enabled" ]; then
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FIND1="soft core enabled"
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FIND2="hard core enabled"
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fi
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IS_SOFTCORE_DISABLED="$(if [ "${FIND1}" = "soft core disabled" ]; then ${ECHOCMD} DISABLED; elif [ "${FIND1}" = "soft core enabled" ]; then ${ECHOCMD} ENABLED; else ${ECHOCMD} ${STATUS_DEFAULT}; fi)"
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IS_HARDCORE_DISABLED="$(if [ "${FIND2}" = "hard core disabled" ]; then ${ECHOCMD} DISABLED; elif [ "${FIND2}" = "hard core enabled" ]; then ${ECHOCMD} ENABLED; else ${ECHOCMD} ${STATUS_DEFAULT}; fi)"
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if [ "${FIND2}" = "hard core disabled" ]; then
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LogText "Result: core dumps are hard disabled"
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Display --indent 4 --text "- 'hard' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "GREEN"
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if [ "${FIND1}" = "soft core disabled" ]; then
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Display --indent 4 --text "- 'soft' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "GREEN"
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else
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Display --indent 4 --text "- 'soft' config in ${ROOTDIR}etc/security/limits.conf (implicit)" --result "${STATUS_DISABLED}" --color "GREEN"
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fi
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AddHP 3 3
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elif [ "${FIND1}" = "soft core enabled" ] && [ "${FIND2}" = "hard core enabled" ]; then
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LogText "Result: core dumps (soft and hard) are enabled"
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Display --indent 4 --text "- 'hard' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${STATUS_ENABLED}" --color "RED"
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Display --indent 4 --text "- 'soft' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${STATUS_ENABLED}" --color "RED"
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ReportSuggestion "${TEST_NO}" "If not required, consider explicit disabling of core dump in /etc/security/limits.conf file"
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AddHP 0 3
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elif [ "${FIND1}" = "soft core disabled" ]; then
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LogText "Result: core dumps are disabled for 'soft' ('hard'=${IS_HARDCORE_DISABLED})"
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Display --indent 4 --text "- 'hard' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "$(if [ "${IS_HARDCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_HARDCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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Display --indent 4 --text "- 'soft' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "GREEN"
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AddHP 2 3
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elif [ "${FIND1}" = "soft core enabled" ] || [ "${FIND2}" = "hard core enabled" ]; then
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LogText "Result: core dumps are partially enabled ('hard'=${IS_HARDCORE_DISABLED}, 'soft'=${IS_SOFTCORE_DISABLED})"
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Display --indent 4 --text "- 'hard' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "$(if [ "${IS_HARDCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_HARDCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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Display --indent 4 --text "- 'soft' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "$(if [ "${IS_SOFTCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_SOFTCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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AddHP 0 3
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else
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LogText "Result: core dumps are not explicitly disabled"
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Display --indent 4 --text "- 'hard' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "WHITE"
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Display --indent 4 --text "- 'soft' configuration in ${ROOTDIR}etc/security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "WHITE"
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ReportSuggestion "${TEST_NO}" "If not required, consider explicit disabling of core dump in ${ROOTDIR}etc/security/limits.conf file"
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AddHP 1 3
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fi
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AddHP 3 3
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elif [ "${FIND1}" = "soft core enabled" ] && [ "${FIND2}" = "hard core enabled" ]; then
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LogText "Result: core dumps (soft and hard) are enabled"
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Display --indent 4 --text "- 'hard' configuration in security/limits.conf" --result "${STATUS_ENABLED}" --color "RED"
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Display --indent 4 --text "- 'soft' configuration in security/limits.conf" --result "${STATUS_ENABLED}" --color "RED"
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ReportSuggestion "${TEST_NO}" "If not required, consider explicit disabling of core dump in /etc/security/limits.conf file"
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AddHP 0 3
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elif [ "${FIND1}" = "soft core disabled" ]; then
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LogText "Result: core dumps are disabled for 'soft' ('hard'=${IS_HARDCORE_DISABLED})"
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Display --indent 4 --text "- 'hard' configuration in security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "$(if [ "${IS_HARDCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_HARDCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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Display --indent 4 --text "- 'soft' configuration in security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "GREEN"
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AddHP 2 3
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elif [ "${FIND1}" = "soft core enabled" ] || [ "${FIND2}" = "hard core enabled" ]; then
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LogText "Result: core dumps are partially enabled ('hard'=${IS_HARDCORE_DISABLED}, 'soft'=${IS_SOFTCORE_DISABLED})"
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Display --indent 4 --text "- 'hard' configuration in security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "$(if [ "${IS_HARDCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_HARDCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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Display --indent 4 --text "- 'soft' configuration in security/limits.conf" --result "${IS_SOFTCORE_DISABLED}" --color "$(if [ "${IS_SOFTCORE_DISABLED}" = "ENABLED" ]; then ${ECHOCMD} RED; elif [ "${IS_SOFTCORE_DISABLED}" = "DISABLED" ]; then ${ECHOCMD} GREEN; else ${ECHOCMD} WHITE; fi)"
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AddHP 0 3
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else
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LogText "Result: core dumps are not explicitly disabled"
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Display --indent 4 --text "- 'hard' configuration in security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "WHITE"
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Display --indent 4 --text "- 'soft' configuration in security/limits.conf" --result "${IS_HARDCORE_DISABLED}" --color "WHITE"
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ReportSuggestion "${TEST_NO}" "If not required, consider explicit disabling of core dump in ${ROOTDIR}etc/security/limits.conf file"
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AddHP 1 3
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LogText "Result: file ${ROOTDIR}etc/security/limits.conf does not exist, skipping test"
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fi
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else
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LogText "Result: file ${ROOTDIR}etc/security/limits.conf does not exist, skipping test"
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fi
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done
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ROOTDIR=$ROOTDIR_BACKUP
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# Sysctl option
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LogText "Test: Checking sysctl value of fs.suid_dumpable"
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