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Migrate generic checks from secaudit to cis-hardening

Browse Source 
new file:   99.3.1_acc_shadow_sha512.sh
new file:   99.3.2_acc_sudoers_no_all.sh
new file:   99.4_net_fw_default_policy_drop.sh
new file:   99.5.1_ssh_auth_pubk_only.sh
new file:   99.5.2.1_ssh_cry_kex.sh
new file:   99.5.2.2_ssh_cry_mac.sh
new file:   99.5.2.3_ssh_cry_rekey.sh
new file:   99.5.3_ssh_disable_features.sh
new file:   99.5.4_ssh_keys_from.sh
new file:   99.5.5_ssh_strict_modes.sh
new file:   99.5.6_ssh_sys_accept_env.sh
new file:   99.5.7_ssh_sys_no_legacy.sh
new file:   99.5.8_ssh_sys_sandbox.sh
new file:   99.5.9_ssh_log_level.sh

Fix descriptions in comment section for 99.* secaudit checks

Remove duplicated legacy services that are already taken care of by vanilla cis

Enable custom configuration of checks in config-file, no more hard coded conf
Add test to disable check if debian version is too old
Add excused IPs while checking "from" field of authorized_keys
Escaping dots in IPs
Manage Kex for different debian versions
Add tests for generic checks and add apply for ssh config
Apply shellcheck recommendations on audit/hardening scripts
Update script to check for allowed IPs only, remove bastion related
Fill `apply` func for ssh config related scripts
Add and update tests scenarii

Disable shellcheck test for external source 1091

As of today, the entire project is not shellcheck compliant, I prefer
disabling the test that warns about not finding external source (that
arent compliant). I will enable it again when the project library will
be shellchecked
https://github.com/koalaman/shellcheck/wiki/SC1091

Refactor password policy check with one check by feature

Previous file will now only look for bad passwords in /etc/shadow
I added two checks that look for the compliant configuration lines in
conf files /etc/logins.defs and /etc/pam.d/common-passwords

FIX: merge chained sed and fix regex

FIX: update regex to capture more output
FIX: fix pattern to ignore commented lines, add apply

Also add tests to ensure that commented lines are not detected as valid
configuration

CHORE: cleanup test situation with file and users removal
IMP: add case insensitive option when looking for patterns in files
CHORE: removed duplicated line in test file
This commit is contained in:
Charles Herlin
2017-12-20 15:14:30 +01:00
parent ba93159a00
commit 810fee4c8f
34 changed files with 1959 additions and 7 deletions
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34
lib/utils.sh
View File

@ -95,14 +95,25 @@ has_file_correct_permissions() {
fi
}
does_pattern_exist_in_file_nocase() {
_does_pattern_exist_in_file "-Ei" $*
}
does_pattern_exist_in_file() {
local FILE=$1
local PATTERN=$2
_does_pattern_exist_in_file "-E" $*
}
_does_pattern_exist_in_file() {
local OPTIONS="$1"
shift
local FILE="$1"
shift
local PATTERN="$*"
debug "Checking if $PATTERN is present in $FILE"
if $SUDO_CMD [ -r "$FILE" ] ; then
debug "$SUDO_CMD grep -qE -- '$PATTERN' $FILE"
if $($SUDO_CMD grep -qE -- "$PATTERN" $FILE); then
debug "$SUDO_CMD grep -q $OPTIONS -- '$PATTERN' $FILE"
if $($SUDO_CMD grep -q $OPTIONS -- "$PATTERN" $FILE); then
FNRET=0
else
FNRET=1
@ -382,3 +393,18 @@ is_pkg_installed()
FNRET=1
fi
}
# Returns Debian major version
get_debian_major_version()
{
DEB_MAJ_VER=""
does_file_exist /etc/debian_version
if [ $FNRET ]; then
DEB_MAJ_VER=$(cut -d '.' -f1 /etc/debian_version)
else
DEB_MAJ_VER=$(lsb_release -r | cut -f2 | cut -d '.' -f 1)
fi
}