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6365f58b4c
renamed: 4.1_restrict_core_dumps.sh -> 1.5.1_restrict_core_dumps.sh renamed: 4.2_enable_nx_support.sh -> 1.5.2_enable_nx_support.sh renamed: 4.3_enable_randomized_vm_placement.sh -> 1.5.3_enable_randomized_vm_placement.sh renamed: 4.4_disable_prelink.sh -> 1.5.4_disable_prelink.sh renamed: ../../tests/hardening/4.4_disable_prelink.sh -> ../../tests/hardening/1.5.1_restrict_core_dumps.sh renamed: ../../tests/hardening/4.3_enable_randomized_vm_placement.sh -> ../../tests/hardening/1.5.2_enable_nx_support.sh renamed: ../../tests/hardening/4.2_enable_nx_support.sh -> ../../tests/hardening/1.5.3_enable_randomized_vm_placement.sh renamed: ../../tests/hardening/4.1_restrict_core_dumps.sh -> ../../tests/hardening/1.5.4_disable_prelink.sh
67 lines
2.0 KiB
Bash
Executable File
67 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# CIS Debian Hardening
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#
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#
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# 1.5.3 Ensure address space layout randomization (ASLR) is enabled (Scored)
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#
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set -e # One error, it's over
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set -u # One variable unset, it's over
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HARDENING_LEVEL=2
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DESCRIPTION="Enable Randomized Virtual Memory Region Placement to prevent memory page exploits."
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SYSCTL_PARAM='kernel.randomize_va_space'
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SYSCTL_EXP_RESULT=2
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# This function will be called if the script status is on enabled / audit mode
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audit () {
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has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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if [ $FNRET != 0 ]; then
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crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
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elif [ $FNRET = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply () {
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has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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if [ $FNRET != 0 ]; then
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warn "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT -- Fixing"
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set_sysctl_param $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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elif [ $FNRET = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_ROOT_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_ROOT_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
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. $CIS_ROOT_DIR/lib/main.sh
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else
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echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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