Gecko [ naturenectar.co.uk ]

Name	Size	Permission	Date
binaries	38.55 KB	-rw-r--r--	2025-04-01 06:33
consts	10.62 KB	-rw-r--r--	2025-04-01 06:33
data_upload	13.46 KB	-rw-r--r--	2025-04-01 06:33
functions	159.25 KB	-rw-r--r--	2025-04-01 06:33
helper_audit_dockerfile	7.81 KB	-rw-r--r--	2025-04-01 06:33
helper_configure	3.66 KB	-rw-r--r--	2025-04-01 06:33
helper_generate	7.38 KB	-rw-r--r--	2025-04-01 06:33
helper_show	22.29 KB	-rw-r--r--	2025-04-01 06:33
helper_system_remote_scan	3.54 KB	-rw-r--r--	2025-04-01 06:33
helper_update	3.58 KB	-rw-r--r--	2025-04-01 06:33
osdetection	44.8 KB	-rw-r--r--	2025-04-01 06:33
parameters	16.48 KB	-rw-r--r--	2025-04-01 06:33
profiles	26.89 KB	-rw-r--r--	2025-04-01 06:33
report	17.25 KB	-rw-r--r--	2025-04-01 06:33
tests_accounting	25.33 KB	-rw-r--r--	2025-04-01 06:33
tests_authentication	84.05 KB	-rw-r--r--	2025-04-01 06:33
tests_banners	8.36 KB	-rw-r--r--	2025-04-01 06:33
tests_boot_services	54.72 KB	-rw-r--r--	2025-04-01 06:33
tests_containers	11.17 KB	-rw-r--r--	2025-04-01 06:33
tests_crypto	19 KB	-rw-r--r--	2025-04-01 06:33
tests_custom.template	6.78 KB	-rw-r--r--	2025-04-01 06:33
tests_databases	24.28 KB	-rw-r--r--	2025-04-01 06:33
tests_dns	3.39 KB	-rw-r--r--	2025-04-01 06:33
tests_file_integrity	22.18 KB	-rw-r--r--	2025-04-01 06:33
tests_file_permissions	3.11 KB	-rw-r--r--	2025-04-01 06:33
tests_filesystems	49.8 KB	-rw-r--r--	2025-04-01 06:33
tests_firewalls	31.51 KB	-rw-r--r--	2025-04-01 06:33
tests_hardening	7.02 KB	-rw-r--r--	2025-04-01 06:33
tests_homedirs	9.17 KB	-rw-r--r--	2025-04-01 06:33
tests_insecure_services	26.88 KB	-rw-r--r--	2025-04-01 06:33
tests_kerberos	7.87 KB	-rw-r--r--	2025-04-01 06:33
tests_kernel	59.96 KB	-rw-r--r--	2025-04-01 06:33
tests_kernel_hardening	5.62 KB	-rw-r--r--	2025-04-01 06:33
tests_ldap	3.96 KB	-rw-r--r--	2025-04-01 06:33
tests_logging	32.93 KB	-rw-r--r--	2025-04-01 06:33
tests_mac_frameworks	14.71 KB	-rw-r--r--	2025-04-01 06:33
tests_mail_messaging	21.45 KB	-rw-r--r--	2025-04-01 06:33
tests_malware	20.56 KB	-rw-r--r--	2025-04-01 06:33
tests_memory_processes	7.16 KB	-rw-r--r--	2025-04-01 06:33
tests_nameservices	34.53 KB	-rw-r--r--	2025-04-01 06:33
tests_networking	40.73 KB	-rw-r--r--	2025-04-01 06:33
tests_php	29.07 KB	-rw-r--r--	2025-04-01 06:33
tests_ports_packages	81.71 KB	-rw-r--r--	2025-04-01 06:33
tests_printers_spoolers	13.86 KB	-rw-r--r--	2025-04-01 06:33
tests_scheduling	15.75 KB	-rw-r--r--	2025-04-01 06:33
tests_shells	13.32 KB	-rw-r--r--	2025-04-01 06:33
tests_snmp	4.17 KB	-rw-r--r--	2025-04-01 06:33
tests_squid	16.75 KB	-rw-r--r--	2025-04-01 06:33
tests_ssh	17.6 KB	-rw-r--r--	2025-04-01 06:33
tests_storage	3.59 KB	-rw-r--r--	2025-04-01 06:33
tests_storage_nfs	8.4 KB	-rw-r--r--	2025-04-01 06:33
tests_system_integrity	2.05 KB	-rw-r--r--	2025-04-01 06:33
tests_time	32.63 KB	-rw-r--r--	2025-04-01 06:33
tests_tooling	22.09 KB	-rw-r--r--	2025-04-01 06:33
tests_usb	21.05 KB	-rw-r--r--	2025-04-01 06:33
tests_virtualization	1.95 KB	-rw-r--r--	2025-04-01 06:33
tests_webservers	33.18 KB	-rw-r--r--	2025-04-01 06:33
tool_tips	2.15 KB	-rw-r--r--	2025-04-01 06:33

Rename

#!/bin/sh

#################################################################################
#
#   Lynis
# ------------------
#
# Copyright (c) Michael Boelen, CISOfy, and many contributors.
#
# Website  : https://cisofy.com
# Blog     : https://linux-audit.com/
# GitHub   : https://github.com/CISOfy/lynis
#
# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
# welcome to redistribute it under the terms of the GNU General Public License.
# See LICENSE file for usage of this software.
#
#################################################################################
#
# Kernel
#
#################################################################################
#
    InsertSection "${SECTION_KERNEL_HARDENING}"
#
#################################################################################
#
    # Test        : KRNL-6000
    # Description : Check sysctl parameters
    # Sysctl      : net.ipv4.icmp_ignore_bogus_error_responses (=1)
    if [ ! "${SYSCTL_READKEY}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
    Register --test-no KRNL-6000 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check sysctl key pairs in scan profile"
    if [ ${SKIPTEST} -eq 0 ]; then
        FOUND=0
        DATA_TO_SCAN=""
        N=0
        Display --indent 2 --text "- Comparing sysctl key pairs with scan profile"

# First scan optional profiles only (ignore default and custom)
        for PROFILE in ${PROFILES}; do
            FILE=$(echo ${PROFILE} | ${AWKBINARY} -F/ '{print $NF}')
            if [ ! "${FILE}" = "default.prf" -a ! "${FILE}" = "custom.prf" ]; then
                FIND=$(${GREPBINARY} "^config-data=sysctl;" ${PROFILE} | ${SEDBINARY} 's/ /-space-/g')
                DATA_TO_SCAN="${DATA_TO_SCAN} ${FIND}"
            fi
        done

# Scan custom profile
        if [ -n "${CUSTOM_PROFILE}" ]; then
            FIND=$(${GREPBINARY} "^config-data=sysctl;" ${CUSTOM_PROFILE} | ${SEDBINARY} 's/ /-space-/g')
            for LINE in ${FIND}; do
                SYSCTLKEY=$(echo ${LINE} | ${AWKBINARY} -F\; '{ print $2 }')
                HAS_KEY=$(echo ${DATA_TO_SCAN} | ${GREPBINARY} ";${SYSCTLKEY};")
                if [ $? -gt 0 ]; then DATA_TO_SCAN="${DATA_TO_SCAN} ${LINE}"; fi
            done
        fi

# Last, use data from default profile
        if [ -n "${DEFAULT_PROFILE}" ]; then
            FIND=$(${GREPBINARY} "^config-data=sysctl;" ${DEFAULT_PROFILE} | ${SEDBINARY} 's/ /-space-/g')
            for LINE in ${FIND}; do
                SYSCTLKEY=$(echo ${LINE} | ${AWKBINARY} -F\; '{ print $2 }')
                HAS_KEY=$(echo ${DATA_TO_SCAN} | ${GREPBINARY} ";${SYSCTLKEY};")
                if [ $? -gt 0 ]; then DATA_TO_SCAN="${DATA_TO_SCAN} ${LINE}"; fi
            done
        fi

# Sort the results
        DATA_TO_SCAN=$(echo ${DATA_TO_SCAN} | ${TRBINARY} ' ' '\n' | sort)

for line in ${DATA_TO_SCAN}; do
            tFINDkey=$(echo ${line} | ${AWKBINARY} -F\; '{ print $2 }')
            if ! SkipAtomicTest "${TEST_NO}:${tFINDkey}"; then
                tFINDexpvalue=$(echo ${line} | ${AWKBINARY} -F\; '{ print $3 }' | ${TRBINARY} '|' ' ')
                tFINDhp=$(echo ${line} | ${AWKBINARY} -F\; '{ print $4 }' | ${GREPBINARY} "[0-9]")
                tFINDdesc=$(echo ${line} | ${AWKBINARY} -F\; '{ print $5 }' | ${SEDBINARY} 's/-space-/ /g')
                tFINDcurvalue=$(${SYSCTL_READKEY} ${tFINDkey} 2> /dev/null)
                if [ -n "${tFINDcurvalue}" ]; then
                    positive_match=0
                    for value in ${tFINDexpvalue}; do
                        if [ "${value}" = "${tFINDcurvalue}" ]; then
                            positive_match=1
                        fi
                    done
                    if [ ${positive_match} -eq 1 ]; then
                        LogText "Result: sysctl key ${tFINDkey} contains equal expected and current value (${tFINDexpvalue})"
                        Display --indent 4 --text "- ${tFINDkey} (exp: ${tFINDexpvalue})" --result "${STATUS_OK}" --color GREEN
                        AddHP ${tFINDhp} ${tFINDhp}
                    else
                        LogText "Result: sysctl key ${tFINDkey} has a different value than expected in scan profile. Expected=${tFINDexpvalue}, Real=${tFINDcurvalue}"
                        Display --indent 4 --text "- ${tFINDkey} (exp: ${tFINDexpvalue})" --result "${STATUS_DIFFERENT}" --color RED
                        AddHP 0 ${tFINDhp}
                        FOUND=1
                        N=$((N + 1))
                        ReportDetails --test "${TEST_NO}" --service "sysctl" --field "${tFINDkey}" --value "${tFINDcurvalue}" --preferredvalue "${tFINDexpvalue}" --description "${tFINDdesc}"
                    fi
                else
                    LogText "Result: key ${tFINDkey} does not exist on this machine"
                fi
            else
                LogText "Skipped test for ${tFINDkey} via profile"
            fi
        done

# Add suggestion if one or more sysctls have a different value than scan profile
        if [ ${FOUND} -eq 1 ]; then
            LogText "Result: found ${N} keys that can use tuning, according scan profile"
            ReportSuggestion "${TEST_NO}" "One or more sysctl values differ from the scan profile and could be tweaked" "" "Change sysctl value or disable test (skip-test=${TEST_NO}:<sysctl-key>)"
        fi
    fi
#
#################################################################################
#

WaitForKeyPress

#
#================================================================================
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com