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Minor cleanups (#116)

Browse Source 
* docker_test.sh: fix shellcheck warnings

* docker_test.sh: unify style

No changes in functionality.

* docker_test.sh: whitespace fixes

* stop mixing tabs and spaces
* remove trailing whitespace

* invoke bash using /usr/bin/env

* build_windows_executable.sh: fix variable assignment

* update_windows_man_page.sh: unify style

No changes in functionality.

* whitespace fixes

* stop mixing tabs and spaces
* remove trailing whitespace

* fix spelling

* remove trailing whitespace
This commit is contained in:
a1346054 2021-08-27 15:19:18 +00:00 committed by GitHub
parent 96efb3efb4
commit 597b500eba
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8 changed files with 203 additions and 203 deletions
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2
.appveyor.yml
View File

@ -17,7 +17,7 @@ environment:
- PYTHON: "C:\\Python38" - PYTHON: "C:\\Python38"
- PYTHON: "C:\\Python38-x64" - PYTHON: "C:\\Python38-x64"
matrix: matrix:
fast_finish: true fast_finish: true
cache: cache:
- '%LOCALAPPDATA%\pip\Cache' - '%LOCALAPPDATA%\pip\Cache'

16
README.md
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@ -71,9 +71,9 @@ usage: ssh-audit.py [options] <host>
targets (-T/--targets) (default: 32) targets (-T/--targets) (default: 32)
-v, --verbose verbose output -v, --verbose verbose output
``` ```
* if both IPv4 and IPv6 are used, order of precedence can be set by using either `-46` or `-64`. * if both IPv4 and IPv6 are used, order of precedence can be set by using either `-46` or `-64`.
* batch flag `-b` will output sections without header and without empty lines (implies verbose flag). * batch flag `-b` will output sections without header and without empty lines (implies verbose flag).
* verbose flag `-v` will prefix each line with section type and algorithm name. * verbose flag `-v` will prefix each line with section type and algorithm name.
* an exit code of 0 is returned when all algorithms are considered secure (for a standard audit), or when a policy check passes (for a policy audit). * an exit code of 0 is returned when all algorithms are considered secure (for a standard audit), or when a policy check passes (for a policy audit).
Basic server auditing: Basic server auditing:
@ -299,18 +299,18 @@ For convenience, a web front-end on top of the command-line tool is available at
### v1.0.20160207 ### v1.0.20160207
- use OpenSSH 7.2 banner - use OpenSSH 7.2 banner
- additional warnings for OpenSSH 7.2 - additional warnings for OpenSSH 7.2
- fix OpenSSH 7.0 failure messages - fix OpenSSH 7.0 failure messages
- add rijndael-cbc failure message from OpenSSH 6.7 - add rijndael-cbc failure message from OpenSSH 6.7
### v1.0.20160105 ### v1.0.20160105
- multiple additional warnings - multiple additional warnings
- support for none algorithm - support for none algorithm
- better compression handling - better compression handling
- ensure reading enough data (fixes few Linux SSH) - ensure reading enough data (fixes few Linux SSH)
### v1.0.20151230 ### v1.0.20151230
- Dropbear SSH support - Dropbear SSH support
### v1.0.20151223 ### v1.0.20151223
- initial version - initial version

10
build_windows_executable.sh
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@ -1,4 +1,4 @@
#!/bin/bash #!/usr/bin/env bash
# #
# The MIT License (MIT) # The MIT License (MIT)
@ -37,9 +37,9 @@ PLATFORM="$(uname -s)"
case "$PLATFORM" in case "$PLATFORM" in
CYGWIN*) ;; CYGWIN*) ;;
*) *)
echo "Platform not supported ($PLATFORM). This must be run in Cygwin only." echo "Platform not supported ($PLATFORM). This must be run in Cygwin only."
exit 1 exit 1
;; ;;
esac esac
# Ensure that Python 3.x is installed. # Ensure that Python 3.x is installed.
@ -52,7 +52,7 @@ fi
command -v pyinstaller >/dev/null 2>&1 || { echo >&2 "pyinstaller not found. Install with: 'pip install pyinstaller'"; exit 1; } command -v pyinstaller >/dev/null 2>&1 || { echo >&2 "pyinstaller not found. Install with: 'pip install pyinstaller'"; exit 1; }
# Ensure that the colorama module is installed. # Ensure that the colorama module is installed.
X=`pip show colorama` 2> /dev/null X=$(pip show colorama 2>/dev/null)
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo "Colorama module not found. Install with: 'pip install colorama'" echo "Colorama module not found. Install with: 'pip install colorama'"
exit 1 exit 1

322
docker_test.sh
View File

@ -41,33 +41,33 @@ num_failures=0
# Returns 0 if current docker image exists. # Returns 0 if current docker image exists.
function check_if_docker_image_exists { check_if_docker_image_exists() {
images=`docker image ls | egrep "$IMAGE_NAME[[:space:]]+$IMAGE_VERSION"` images=$(docker image ls | grep -E "$IMAGE_NAME[[:space:]]+$IMAGE_VERSION")
} }
# Uncompresses and compiles the specified version of Dropbear. # Uncompresses and compiles the specified version of Dropbear.
function compile_dropbear { compile_dropbear() {
version=$1 version=$1
compile 'Dropbear' $version compile 'Dropbear' "$version"
} }
# Uncompresses and compiles the specified version of OpenSSH. # Uncompresses and compiles the specified version of OpenSSH.
function compile_openssh { compile_openssh() {
version=$1 version=$1
compile 'OpenSSH' $version compile 'OpenSSH' "$version"
} }
# Uncompresses and compiles the specified version of TinySSH. # Uncompresses and compiles the specified version of TinySSH.
function compile_tinyssh { compile_tinyssh() {
version=$1 version=$1
compile 'TinySSH' $version compile 'TinySSH' "$version"
} }
function compile { compile() {
project=$1 project=$1
version=$2 version=$2
@ -76,38 +76,38 @@ function compile {
source_dir= source_dir=
server_executable= server_executable=
if [[ $project == 'OpenSSH' ]]; then if [[ $project == 'OpenSSH' ]]; then
tarball="openssh-${version}.tar.gz" tarball="openssh-${version}.tar.gz"
uncompress_options="xzf" uncompress_options="xzf"
source_dir="openssh-${version}" source_dir="openssh-${version}"
server_executable=sshd server_executable=sshd
elif [[ $project == 'Dropbear' ]]; then elif [[ $project == 'Dropbear' ]]; then
tarball="dropbear-${version}.tar.bz2" tarball="dropbear-${version}.tar.bz2"
uncompress_options="xjf" uncompress_options="xjf"
source_dir="dropbear-${version}" source_dir="dropbear-${version}"
server_executable=dropbear server_executable=dropbear
elif [[ $project == 'TinySSH' ]]; then elif [[ $project == 'TinySSH' ]]; then
tarball="${version}.tar.gz" tarball="${version}.tar.gz"
uncompress_options="xzf" uncompress_options="xzf"
source_dir="tinyssh-${version}" source_dir="tinyssh-${version}"
server_executable='build/bin/tinysshd' server_executable='build/bin/tinysshd'
fi fi
echo "Uncompressing ${project} ${version}..." echo "Uncompressing ${project} ${version}..."
tar $uncompress_options $tarball tar $uncompress_options "$tarball"
echo "Compiling ${project} ${version}..." echo "Compiling ${project} ${version}..."
pushd $source_dir > /dev/null pushd "$source_dir" > /dev/null
# TinySSH has no configure script... only a Makefile. # TinySSH has no configure script... only a Makefile.
if [[ $project == 'TinySSH' ]]; then if [[ $project == 'TinySSH' ]]; then
make -j 10 make -j 10
else else
./configure && make -j 10 ./configure && make -j 10
fi fi
if [[ ! -f $server_executable ]]; then if [[ ! -f $server_executable ]]; then
echo -e "${REDB}Error: ${server_executable} not built!${CLR}" echo -e "${REDB}Error: ${server_executable} not built!${CLR}"
exit 1 exit 1
fi fi
echo -e "\n${GREEN}Successfully built ${project} ${version}${CLR}\n" echo -e "\n${GREEN}Successfully built ${project} ${version}${CLR}\n"
@ -116,16 +116,16 @@ function compile {
# Creates a new docker image. # Creates a new docker image.
function create_docker_image { create_docker_image() {
# Create a new temporary directory. # Create a new temporary directory.
TMP_DIR=`mktemp -d /tmp/sshaudit-docker-XXXXXXXXXX` TMP_DIR=$(mktemp -d /tmp/sshaudit-docker-XXXXXXXXXX)
# Copy the Dockerfile and all files in the test/docker/ dir to our new temp directory. # Copy the Dockerfile and all files in the test/docker/ dir to our new temp directory.
find test/docker/ -maxdepth 1 -type f | xargs cp -t $TMP_DIR find test/docker/ -maxdepth 1 -type f -exec cp -t "$TMP_DIR" '{}' +
# Make the temp directory our working directory for the duration of the build # Make the temp directory our working directory for the duration of the build
# process. # process.
pushd $TMP_DIR > /dev/null pushd "$TMP_DIR" > /dev/null
# Get the release keys. # Get the release keys.
get_dropbear_release_key get_dropbear_release_key
@ -178,7 +178,7 @@ function create_docker_image {
# Test 2: RSA 1024 host key with RSA 1024 certificate. # Test 2: RSA 1024 host key with RSA 1024 certificate.
create_openssh_config '5.6p1' 'test2' "HostKey /etc/ssh/ssh_host_rsa_key_1024\nHostCertificate /etc/ssh/ssh_host_rsa_key_1024-cert_1024.pub" create_openssh_config '5.6p1' 'test2' "HostKey /etc/ssh/ssh_host_rsa_key_1024\nHostCertificate /etc/ssh/ssh_host_rsa_key_1024-cert_1024.pub"
# Test 3: RSA 1024 host key with RSA 3072 certificate. # Test 3: RSA 1024 host key with RSA 3072 certificate.
create_openssh_config '5.6p1' 'test3' "HostKey /etc/ssh/ssh_host_rsa_key_1024\nHostCertificate /etc/ssh/ssh_host_rsa_key_1024-cert_3072.pub" create_openssh_config '5.6p1' 'test3' "HostKey /etc/ssh/ssh_host_rsa_key_1024\nHostCertificate /etc/ssh/ssh_host_rsa_key_1024-cert_3072.pub"
@ -204,43 +204,43 @@ function create_docker_image {
# Now build the docker image! # Now build the docker image!
docker build --tag $IMAGE_NAME:$IMAGE_VERSION . docker build --tag "$IMAGE_NAME:$IMAGE_VERSION" .
popd > /dev/null popd > /dev/null
rm -rf $TMP_DIR rm -rf -- "$TMP_DIR"
} }
# Creates an OpenSSH configuration file for a specific test. # Creates an OpenSSH configuration file for a specific test.
function create_openssh_config { create_openssh_config() {
openssh_version=$1 openssh_version=$1
test_number=$2 test_number=$2
config_text=$3 config_text=$3
cp sshd_config-${openssh_version}_orig sshd_config-${openssh_version}_${test_number} cp "sshd_config-${openssh_version}_orig" "sshd_config-${openssh_version}_${test_number}"
echo -e "${config_text}" >> sshd_config-${openssh_version}_${test_number} echo -e "${config_text}" >> "sshd_config-${openssh_version}_${test_number}"
} }
# Downloads the Dropbear release key and adds it to the local keyring. # Downloads the Dropbear release key and adds it to the local keyring.
function get_dropbear_release_key { get_dropbear_release_key() {
get_release_key 'Dropbear' 'https://matt.ucc.asn.au/dropbear/releases/dropbear-key-2015.asc' 'F29C6773' 'F734 7EF2 EE2E 07A2 6762 8CA9 4493 1494 F29C 6773' get_release_key 'Dropbear' 'https://matt.ucc.asn.au/dropbear/releases/dropbear-key-2015.asc' 'F29C6773' 'F734 7EF2 EE2E 07A2 6762 8CA9 4493 1494 F29C 6773'
} }
# Downloads the OpenSSH release key and adds it to the local keyring. # Downloads the OpenSSH release key and adds it to the local keyring.
function get_openssh_release_key { get_openssh_release_key() {
get_release_key 'OpenSSH' 'https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/RELEASE_KEY.asc' '6D920D30' '59C2 118E D206 D927 E667 EBE3 D3E5 F56B 6D92 0D30' get_release_key 'OpenSSH' 'https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/RELEASE_KEY.asc' '6D920D30' '59C2 118E D206 D927 E667 EBE3 D3E5 F56B 6D92 0D30'
} }
# Downloads the TinySSH release key and adds it to the local keyring. # Downloads the TinySSH release key and adds it to the local keyring.
function get_tinyssh_release_key { get_tinyssh_release_key() {
get_release_key 'TinySSH' '' '96939FF9' 'AADF 2EDF 5529 F170 2772 C8A2 DEC4 D246 931E F49B' get_release_key 'TinySSH' '' '96939FF9' 'AADF 2EDF 5529 F170 2772 C8A2 DEC4 D246 931E F49B'
} }
function get_release_key { get_release_key() {
project=$1 project=$1
key_url=$2 key_url=$2
key_id=$3 key_id=$3
@ -248,51 +248,51 @@ function get_release_key {
# The TinySSH release key isn't on any website, apparently. # The TinySSH release key isn't on any website, apparently.
if [[ $project == 'TinySSH' ]]; then if [[ $project == 'TinySSH' ]]; then
gpg --keyserver keys.gnupg.net --recv-key $key_id gpg --keyserver keys.gnupg.net --recv-key "$key_id"
else else
echo -e "\nGetting ${project} release key...\n" echo -e "\nGetting ${project} release key...\n"
wget -O key.asc $2 wget -O key.asc "$2"
echo -e "\nImporting ${project} release key...\n" echo -e "\nImporting ${project} release key...\n"
gpg --import key.asc gpg --import key.asc
rm key.asc rm key.asc
fi fi
local release_key_fingerprint_actual=`gpg --fingerprint ${key_id}` local release_key_fingerprint_actual=$(gpg --fingerprint "$key_id")
if [[ $release_key_fingerprint_actual != *"$release_key_fingerprint_expected"* ]]; then if [[ $release_key_fingerprint_actual != *"$release_key_fingerprint_expected"* ]]; then
echo -e "\n${REDB}Error: ${project} release key fingerprint does not match expected value!\n\tExpected: $release_key_fingerprint_expected\n\tActual: $release_key_fingerprint_actual\n\nTerminating.${CLR}" echo -e "\n${REDB}Error: ${project} release key fingerprint does not match expected value!\n\tExpected: $release_key_fingerprint_expected\n\tActual: $release_key_fingerprint_actual\n\nTerminating.${CLR}"
exit -1 exit 1
fi fi
echo -e "\n\n${GREEN}${project} release key matches expected value.${CLR}\n" echo -e "\n\n${GREEN}${project} release key matches expected value.${CLR}\n"
} }
# Downloads the specified version of Dropbear. # Downloads the specified version of Dropbear.
function get_dropbear { get_dropbear() {
version=$1 version=$1
tarball_checksum_expected=$2 tarball_checksum_expected=$2
get_source 'Dropbear' $version $tarball_checksum_expected get_source 'Dropbear' "$version" "$tarball_checksum_expected"
} }
# Downloads the specified version of OpenSSH. # Downloads the specified version of OpenSSH.
function get_openssh { get_openssh() {
version=$1 version=$1
tarball_checksum_expected=$2 tarball_checksum_expected=$2
get_source 'OpenSSH' $version $tarball_checksum_expected get_source 'OpenSSH' "$version" "$tarball_checksum_expected"
} }
# Downloads the specified version of TinySSH. # Downloads the specified version of TinySSH.
function get_tinyssh { get_tinyssh() {
version=$1 version=$1
tarball_checksum_expected=$2 tarball_checksum_expected=$2
get_source 'TinySSH' $version $tarball_checksum_expected get_source 'TinySSH' "$version" "$tarball_checksum_expected"
} }
function get_source { get_source() {
project=$1 project=$1
version=$2 version=$2
tarball_checksum_expected=$3 tarball_checksum_expected=$3
@ -303,23 +303,23 @@ function get_source {
sig= sig=
signer= signer=
if [[ $project == 'OpenSSH' ]]; then if [[ $project == 'OpenSSH' ]]; then
base_url_source='https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/' base_url_source='https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/'
base_url_sig=$base_url_source base_url_sig=$base_url_source
tarball="openssh-${version}.tar.gz" tarball="openssh-${version}.tar.gz"
sig="${tarball}.asc" sig="${tarball}.asc"
signer="Damien Miller " signer="Damien Miller "
elif [[ $project == 'Dropbear' ]]; then elif [[ $project == 'Dropbear' ]]; then
base_url_source='https://matt.ucc.asn.au/dropbear/releases/' base_url_source='https://matt.ucc.asn.au/dropbear/releases/'
base_url_sig=$base_url_source base_url_sig=$base_url_source
tarball="dropbear-${version}.tar.bz2" tarball="dropbear-${version}.tar.bz2"
sig="${tarball}.asc" sig="${tarball}.asc"
signer="Dropbear SSH Release Signing <matt@ucc.asn.au>" signer="Dropbear SSH Release Signing <matt@ucc.asn.au>"
elif [[ $project == 'TinySSH' ]]; then elif [[ $project == 'TinySSH' ]]; then
base_url_source='https://github.com/janmojzis/tinyssh/archive/' base_url_source='https://github.com/janmojzis/tinyssh/archive/'
base_url_sig="https://github.com/janmojzis/tinyssh/releases/download/${version}/" base_url_sig="https://github.com/janmojzis/tinyssh/releases/download/${version}/"
tarball="${version}.tar.gz" tarball="${version}.tar.gz"
sig="${tarball}.asc" sig="${tarball}.asc"
signer="Jan Mojžíš <jan.mojzis@gmail.com>" signer="Jan Mojžíš <jan.mojzis@gmail.com>"
fi fi
echo -e "\nGetting ${project} ${version} sources...\n" echo -e "\nGetting ${project} ${version} sources...\n"
@ -331,48 +331,48 @@ function get_source {
# Older OpenSSH releases were .sigs. # Older OpenSSH releases were .sigs.
if [[ ($project == 'OpenSSH') && (! -f $sig) ]]; then if [[ ($project == 'OpenSSH') && (! -f $sig) ]]; then
wget ${base_url_sig}openssh-${version}.tar.gz.sig wget "${base_url_sig}openssh-${version}.tar.gz.sig"
sig=openssh-${version}.tar.gz.sig sig=openssh-${version}.tar.gz.sig
fi fi
local gpg_verify=`gpg --verify ${sig} ${tarball} 2>&1` local gpg_verify=$(gpg --verify "${sig}" "${tarball}" 2>&1)
if [[ $gpg_verify != *"Good signature from \"${signer}"* ]]; then if [[ $gpg_verify != *"Good signature from \"${signer}"* ]]; then
echo -e "\n\n${REDB}Error: ${project} signature invalid!\n$gpg_verify\n\nTerminating.${CLR}" echo -e "\n\n${REDB}Error: ${project} signature invalid!\n$gpg_verify\n\nTerminating.${CLR}"
exit -1 exit 1
fi fi
# Check GPG's return value. 0 denotes a valid signature, and 1 is returned # Check GPG's return value. 0 denotes a valid signature, and 1 is returned
# on invalid signatures. # on invalid signatures.
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "\n\n${REDB}Error: ${project} signature invalid! Verification returned code: $?\n\nTerminating.${CLR}" echo -e "\n\n${REDB}Error: ${project} signature invalid! Verification returned code: $?\n\nTerminating.${CLR}"
exit -1 exit 1
fi fi
echo -e "${GREEN}Signature on ${project} sources verified.${CLR}\n" echo -e "${GREEN}Signature on ${project} sources verified.${CLR}\n"
local checksum_actual=`sha256sum ${tarball} | cut -f1 -d" "` local checksum_actual=$(sha256sum "${tarball}" | cut -f1 -d" ")
if [[ $checksum_actual != $tarball_checksum_expected ]]; then if [[ $checksum_actual != "$tarball_checksum_expected" ]]; then
echo -e "${REDB}Error: ${project} checksum is invalid!\n Expected: ${tarball_checksum_expected}\n Actual: ${checksum_actual}\n\n Terminating.${CLR}" echo -e "${REDB}Error: ${project} checksum is invalid!\n Expected: ${tarball_checksum_expected}\n Actual: ${checksum_actual}\n\n Terminating.${CLR}"
exit -1 exit 1
fi fi
} }
# Pulls the defined image from Dockerhub. # Pulls the defined image from Dockerhub.
function pull_docker_image { pull_docker_image() {
docker pull $IMAGE_NAME:$IMAGE_VERSION docker pull "$IMAGE_NAME:$IMAGE_VERSION"
if [[ $? == 0 ]]; then if [[ $? == 0 ]]; then
echo -e "${GREEN}Successfully downloaded image ${IMAGE_NAME}:${IMAGE_VERSION} from Dockerhub.${CLR}\n" echo -e "${GREEN}Successfully downloaded image $IMAGE_NAME:$IMAGE_VERSION from Dockerhub.${CLR}\n"
else else
echo -e "${REDB}Failed to pull image ${IMAGE_NAME}:${IMAGE_VERSION} from Dockerhub! Error code: $?${CLR}\n" echo -e "${REDB}Failed to pull image $IMAGE_NAME:$IMAGE_VERSION from Dockerhub! Error code: $?${CLR}\n"
exit -1 exit 1
fi fi
} }
# Runs a Dropbear test. Upon failure, a diff between the expected and actual results # Runs a Dropbear test. Upon failure, a diff between the expected and actual results
# is shown, then the script immediately terminates. # is shown, then the script immediately terminates.
function run_dropbear_test { run_dropbear_test() {
dropbear_version=$1 dropbear_version=$1
test_number=$2 test_number=$2
options=$3 options=$3
@ -384,7 +384,7 @@ function run_dropbear_test {
# Runs an OpenSSH test. Upon failure, a diff between the expected and actual results # Runs an OpenSSH test. Upon failure, a diff between the expected and actual results
# is shown, then the script immediately terminates. # is shown, then the script immediately terminates.
function run_openssh_test { run_openssh_test() {
openssh_version=$1 openssh_version=$1
test_number=$2 test_number=$2
expected_retval=$3 expected_retval=$3
@ -395,7 +395,7 @@ function run_openssh_test {
# Runs a TinySSH test. Upon failure, a diff between the expected and actual results # Runs a TinySSH test. Upon failure, a diff between the expected and actual results
# is shown, then the script immediately terminates. # is shown, then the script immediately terminates.
function run_tinyssh_test { run_tinyssh_test() {
tinyssh_version=$1 tinyssh_version=$1
test_number=$2 test_number=$2
expected_retval=$3 expected_retval=$3
@ -404,7 +404,7 @@ function run_tinyssh_test {
} }
function run_test { run_test() {
server_type=$1 server_type=$1
version=$2 version=$2
test_number=$3 test_number=$3
@ -419,50 +419,50 @@ function run_test {
expected_result_json= expected_result_json=
test_name= test_name=
if [[ $server_type == 'OpenSSH' ]]; then if [[ $server_type == 'OpenSSH' ]]; then
server_exec="/openssh/sshd-${version} -D -f /etc/ssh/sshd_config-${version}_${test_number}" server_exec="/openssh/sshd-${version} -D -f /etc/ssh/sshd_config-${version}_${test_number}"
test_result_stdout="${TEST_RESULT_DIR}/openssh_${version}_${test_number}.txt" test_result_stdout="${TEST_RESULT_DIR}/openssh_${version}_${test_number}.txt"
test_result_json="${TEST_RESULT_DIR}/openssh_${version}_${test_number}.json" test_result_json="${TEST_RESULT_DIR}/openssh_${version}_${test_number}.json"
expected_result_stdout="test/docker/expected_results/openssh_${version}_${test_number}.txt" expected_result_stdout="test/docker/expected_results/openssh_${version}_${test_number}.txt"
expected_result_json="test/docker/expected_results/openssh_${version}_${test_number}.json" expected_result_json="test/docker/expected_results/openssh_${version}_${test_number}.json"
test_name="OpenSSH ${version} ${test_number}" test_name="OpenSSH ${version} ${test_number}"
options= options=
elif [[ $server_type == 'Dropbear' ]]; then elif [[ $server_type == 'Dropbear' ]]; then
server_exec="/dropbear/dropbear-${version} -F ${options}" server_exec="/dropbear/dropbear-${version} -F ${options}"
test_result_stdout="${TEST_RESULT_DIR}/dropbear_${version}_${test_number}.txt" test_result_stdout="${TEST_RESULT_DIR}/dropbear_${version}_${test_number}.txt"
test_result_json="${TEST_RESULT_DIR}/dropbear_${version}_${test_number}.json" test_result_json="${TEST_RESULT_DIR}/dropbear_${version}_${test_number}.json"
expected_result_stdout="test/docker/expected_results/dropbear_${version}_${test_number}.txt" expected_result_stdout="test/docker/expected_results/dropbear_${version}_${test_number}.txt"
expected_result_json="test/docker/expected_results/dropbear_${version}_${test_number}.json" expected_result_json="test/docker/expected_results/dropbear_${version}_${test_number}.json"
test_name="Dropbear ${version} ${test_number}" test_name="Dropbear ${version} ${test_number}"
elif [[ $server_type == 'TinySSH' ]]; then elif [[ $server_type == 'TinySSH' ]]; then
server_exec="/usr/bin/tcpserver -HRDl0 0.0.0.0 22 /tinysshd/tinyssh-20190101 -v /etc/tinyssh/" server_exec="/usr/bin/tcpserver -HRDl0 0.0.0.0 22 /tinysshd/tinyssh-20190101 -v /etc/tinyssh/"
test_result_stdout="${TEST_RESULT_DIR}/tinyssh_${version}_${test_number}.txt" test_result_stdout="${TEST_RESULT_DIR}/tinyssh_${version}_${test_number}.txt"
test_result_json="${TEST_RESULT_DIR}/tinyssh_${version}_${test_number}.json" test_result_json="${TEST_RESULT_DIR}/tinyssh_${version}_${test_number}.json"
expected_result_stdout="test/docker/expected_results/tinyssh_${version}_${test_number}.txt" expected_result_stdout="test/docker/expected_results/tinyssh_${version}_${test_number}.txt"
expected_result_json="test/docker/expected_results/tinyssh_${version}_${test_number}.json" expected_result_json="test/docker/expected_results/tinyssh_${version}_${test_number}.json"
test_name="TinySSH ${version} ${test_number}" test_name="TinySSH ${version} ${test_number}"
fi fi
cid=`docker run -d -p 2222:22 ${IMAGE_NAME}:${IMAGE_VERSION} ${server_exec}` cid=$(docker run -d -p 2222:22 "$IMAGE_NAME:$IMAGE_VERSION" ${server_exec})
#echo "Running: docker run -d -p 2222:22 ${IMAGE_NAME}:${IMAGE_VERSION} ${server_exec}" #echo "Running: docker run -d -p 2222:22 $IMAGE_NAME:$IMAGE_VERSION ${server_exec}"
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${REDB}Failed to run docker image! (exit code: $?)${CLR}" echo -e "${REDB}Failed to run docker image! (exit code: $?)${CLR}"
exit 1 exit 1
fi fi
./ssh-audit.py localhost:2222 > $test_result_stdout ./ssh-audit.py localhost:2222 > "$test_result_stdout"
actual_retval=$? actual_retval=$?
if [[ $actual_retval != $expected_retval ]]; then if [[ $actual_retval != "$expected_retval" ]]; then
echo -e "${REDB}Unexpected return value. Expected: ${expected_retval}; Actual: ${actual_retval}${CLR}" echo -e "${REDB}Unexpected return value. Expected: ${expected_retval}; Actual: ${actual_retval}${CLR}"
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
exit 1 exit 1
fi fi
./ssh-audit.py -j localhost:2222 > $test_result_json ./ssh-audit.py -j localhost:2222 > "$test_result_json"
actual_retval=$? actual_retval=$?
if [[ $actual_retval != $expected_retval ]]; then if [[ $actual_retval != "$expected_retval" ]]; then
echo -e "${REDB}Unexpected return value. Expected: ${expected_retval}; Actual: ${actual_retval}${CLR}" echo -e "${REDB}Unexpected return value. Expected: ${expected_retval}; Actual: ${actual_retval}${CLR}"
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
exit 1 exit 1
fi fi
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
@ -475,32 +475,32 @@ function run_test {
# we need to filter out the banner part of the output so we get stable, repeatable # we need to filter out the banner part of the output so we get stable, repeatable
# results. # results.
if [[ $server_type == 'TinySSH' ]]; then if [[ $server_type == 'TinySSH' ]]; then
grep -v "(gen) banner: " ${test_result_stdout} > "${test_result_stdout}.tmp" grep -v "(gen) banner: " "${test_result_stdout}" > "${test_result_stdout}.tmp"
mv "${test_result_stdout}.tmp" ${test_result_stdout} mv "${test_result_stdout}.tmp" "${test_result_stdout}"
cat "${test_result_json}" | perl -pe 's/"comments": ".*?"/"comments": ""/' | perl -pe 's/"raw": ".+?"/"raw": ""/' > "${test_result_json}.tmp" cat "${test_result_json}" | perl -pe 's/"comments": ".*?"/"comments": ""/' | perl -pe 's/"raw": ".+?"/"raw": ""/' > "${test_result_json}.tmp"
mv "${test_result_json}.tmp" ${test_result_json} mv "${test_result_json}.tmp" "${test_result_json}"
fi fi
diff=`diff -u ${expected_result_stdout} ${test_result_stdout}` diff=$(diff -u "${expected_result_stdout}" "${test_result_stdout}")
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n" echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n"
failed=1 failed=1
num_failures=$((num_failures+1)) num_failures=$((num_failures+1))
fi fi
diff=`diff -u ${expected_result_json} ${test_result_json}` diff=$(diff -u "${expected_result_json}" "${test_result_json}")
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n" echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n"
failed=1 failed=1
num_failures=$((num_failures+1)) num_failures=$((num_failures+1))
fi fi
if [[ $failed == 0 ]]; then if [[ $failed == 0 ]]; then
echo -e "${test_name} ${GREEN}passed${CLR}." echo -e "${test_name} ${GREEN}passed${CLR}."
fi fi
} }
function run_builtin_policy_test { run_builtin_policy_test() {
policy_name=$1 # The built-in policy name to use. policy_name=$1 # The built-in policy name to use.
version=$2 # Version of OpenSSH to test with. version=$2 # Version of OpenSSH to test with.
test_number=$3 # The test number to run. test_number=$3 # The test number to run.
@ -518,7 +518,7 @@ function run_builtin_policy_test {
} }
function run_custom_policy_test { run_custom_policy_test() {
config_number=$1 # The configuration number to use. config_number=$1 # The configuration number to use.
test_number=$2 # The policy test number to run. test_number=$2 # The policy test number to run.
expected_exit_code=$3 # The expected exit code of ssh-audit.py. expected_exit_code=$3 # The expected exit code of ssh-audit.py.
@ -548,7 +548,7 @@ function run_custom_policy_test {
} }
function run_policy_test { run_policy_test() {
test_name=$1 test_name=$1
server_exec=$2 server_exec=$2
policy_path=$3 policy_path=$3
@ -557,31 +557,31 @@ function run_policy_test {
expected_exit_code=$6 expected_exit_code=$6
#echo "Running: docker run -d -p 2222:22 ${IMAGE_NAME}:${IMAGE_VERSION} ${server_exec}" #echo "Running: docker run -d -p 2222:22 $IMAGE_NAME:$IMAGE_VERSION ${server_exec}"
cid=`docker run -d -p 2222:22 ${IMAGE_NAME}:${IMAGE_VERSION} ${server_exec}` cid=$(docker run -d -p 2222:22 "$IMAGE_NAME:$IMAGE_VERSION" ${server_exec})
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${REDB}Failed to run docker image! (exit code: $?)${CLR}" echo -e "${REDB}Failed to run docker image! (exit code: $?)${CLR}"
exit 1 exit 1
fi fi
#echo "Running: ./ssh-audit.py -P \"${policy_path}\" localhost:2222 > ${test_result_stdout}" #echo "Running: ./ssh-audit.py -P \"${policy_path}\" localhost:2222 > ${test_result_stdout}"
./ssh-audit.py -P "${policy_path}" localhost:2222 > ${test_result_stdout} ./ssh-audit.py -P "${policy_path}" localhost:2222 > "${test_result_stdout}"
actual_exit_code=$? actual_exit_code=$?
if [[ ${actual_exit_code} != ${expected_exit_code} ]]; then if [[ ${actual_exit_code} != "${expected_exit_code}" ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR} (expected exit code: ${expected_exit_code}; actual exit code: ${actual_exit_code}\n" echo -e "${test_name} ${REDB}FAILED${CLR} (expected exit code: ${expected_exit_code}; actual exit code: ${actual_exit_code}\n"
cat ${test_result_stdout} cat "${test_result_stdout}"
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
exit 1 exit 1
fi fi
#echo "Running: ./ssh-audit.py -P \"${policy_path}\" -j localhost:2222 > ${test_result_json}" #echo "Running: ./ssh-audit.py -P \"${policy_path}\" -j localhost:2222 > ${test_result_json}"
./ssh-audit.py -P "${policy_path}" -j localhost:2222 > ${test_result_json} ./ssh-audit.py -P "${policy_path}" -j localhost:2222 > "${test_result_json}"
actual_exit_code=$? actual_exit_code=$?
if [[ ${actual_exit_code} != ${expected_exit_code} ]]; then if [[ ${actual_exit_code} != "${expected_exit_code}" ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR} (expected exit code: ${expected_exit_code}; actual exit code: ${actual_exit_code}\n" echo -e "${test_name} ${REDB}FAILED${CLR} (expected exit code: ${expected_exit_code}; actual exit code: ${actual_exit_code}\n"
cat ${test_result_json} cat "${test_result_json}"
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
exit 1 exit 1
fi fi
docker container stop -t 0 $cid > /dev/null docker container stop -t 0 $cid > /dev/null
@ -590,16 +590,16 @@ function run_policy_test {
exit 1 exit 1
fi fi
diff=`diff -u ${expected_result_stdout} ${test_result_stdout}` diff=$(diff -u "${expected_result_stdout}" "${test_result_stdout}")
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n" echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n"
exit 1 exit 1
fi fi
diff=`diff -u ${expected_result_json} ${test_result_json}` diff=$(diff -u "${expected_result_json}" "${test_result_json}")
if [[ $? != 0 ]]; then if [[ $? != 0 ]]; then
echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n" echo -e "${test_name} ${REDB}FAILED${CLR}.\n\n${diff}\n"
exit 1 exit 1
fi fi
echo -e "${test_name} ${GREEN}passed${CLR}." echo -e "${test_name} ${GREEN}passed${CLR}."
@ -647,7 +647,7 @@ fi
echo -e "\n${GREEN}Starting tests...${CLR}" echo -e "\n${GREEN}Starting tests...${CLR}"
# Create a temporary directory to write test results to. # Create a temporary directory to write test results to.
TEST_RESULT_DIR=`mktemp -d /tmp/ssh-audit_test-results_XXXXXXXXXX` TEST_RESULT_DIR=$(mktemp -d /tmp/ssh-audit_test-results_XXXXXXXXXX)
# Now run all the tests. # Now run all the tests.
echo -e "\nRunning tests..." echo -e "\nRunning tests..."
@ -708,7 +708,7 @@ run_builtin_policy_test "Hardened OpenSSH Server v8.0 (version 1)" "8.0p1" "test
if [[ $num_failures == 0 ]]; then if [[ $num_failures == 0 ]]; then
echo -e "\n${GREENB}ALL TESTS PASS!${CLR}\n" echo -e "\n${GREENB}ALL TESTS PASS!${CLR}\n"
rm -rf $TEST_RESULT_DIR rm -rf -- "$TEST_RESULT_DIR"
else else
echo -e "\n${REDB}${num_failures} TESTS FAILED!${CLR}\n" echo -e "\n${REDB}${num_failures} TESTS FAILED!${CLR}\n"
fi fi

2
src/ssh_audit/ssh_audit.py
View File

@ -1083,7 +1083,7 @@ def main() -> int:
host, port = Utils.parse_host_and_port(target, default_port=22) host, port = Utils.parse_host_and_port(target, default_port=22)
target_servers.append((host, port)) target_servers.append((host, port))
# A ranked list of return codes. Those with higher indices will take precendence over lower ones. For example, if three servers are scanned, yielding WARNING, GOOD, and UNKNOWN_ERROR, the overall result will be UNKNOWN_ERROR, since its index is the highest. Errors have highest priority, followed by failures, then warnings. # A ranked list of return codes. Those with higher indices will take precedence over lower ones. For example, if three servers are scanned, yielding WARNING, GOOD, and UNKNOWN_ERROR, the overall result will be UNKNOWN_ERROR, since its index is the highest. Errors have highest priority, followed by failures, then warnings.
ranked_return_codes = [exitcodes.GOOD, exitcodes.WARNING, exitcodes.FAILURE, exitcodes.CONNECTION_ERROR, exitcodes.UNKNOWN_ERROR] ranked_return_codes = [exitcodes.GOOD, exitcodes.WARNING, exitcodes.FAILURE, exitcodes.CONNECTION_ERROR, exitcodes.UNKNOWN_ERROR]
# Queue all worker threads. # Queue all worker threads.

2
ssh-audit.1
View File

@ -6,7 +6,7 @@
.RI [ options ] " <target_host>" .RI [ options ] " <target_host>"
.SH DESCRIPTION .SH DESCRIPTION
.PP .PP
\fBssh-audit\fP analyzes the configuration of SSH servers & clients, then warns the user of weak, obsolete, and/or un-tested cryptographic primitives. It is very useful for hardening SSH tunnels, which by default tend to be optimized for compatibility, not security. \fBssh-audit\fP analyzes the configuration of SSH servers & clients, then warns the user of weak, obsolete, and/or untested cryptographic primitives. It is very useful for hardening SSH tunnels, which by default tend to be optimized for compatibility, not security.
.PP .PP
See <https://www.ssh\-audit.com/> for official hardening guides for common platforms. See <https://www.ssh\-audit.com/> for official hardening guides for common platforms.

6
tox.ini
View File

@ -1,12 +1,12 @@
[tox] [tox]
envlist = envlist =
py{py3}-{test,pylint,flake8,vulture} py{py3}-{test,pylint,flake8,vulture}
py{36,37,38,39}-{test,mypy,pylint,flake8,vulture} py{36,37,38,39}-{test,mypy,pylint,flake8,vulture}
cov cov
skip_missing_interpreters = true skip_missing_interpreters = true
[testenv] [testenv]
deps = deps =
test: pytest<6.0 test: pytest<6.0
test,cov: {[testenv:cov]deps} test,cov: {[testenv:cov]deps}
test,py{36,37,38,39}-{type,mypy}: colorama test,py{36,37,38,39}-{type,mypy}: colorama
@ -90,7 +90,7 @@ commands =
reports = no reports = no
#output-format = colorized #output-format = colorized
indent-string = " " indent-string = " "
disable = disable =
bad-continuation, bad-continuation,
broad-except, broad-except,
duplicate-code, duplicate-code,

46
update_windows_man_page.sh
View File

@ -1,4 +1,4 @@
#!/bin/bash #!/usr/bin/env bash
# #
# The MIT License (MIT) # The MIT License (MIT)
@ -30,12 +30,12 @@
# #
# PURPOSE # PURPOSE
# Since Windows lacks a manual reader it's necessary to provide an alternative # Since Windows lacks a manual reader it's necessary to provide an alternative
# means of reading the man page. # means of reading the man page.
# #
# This script should be run as part of the ssh-audit packaging process for # This script should be run as part of the ssh-audit packaging process for
# Windows. It populates the 'WINDOWS_MAN_PAGE' variable in 'globals.py' with # Windows. It populates the 'WINDOWS_MAN_PAGE' variable in 'globals.py' with
# the contents of the man page. Windows users can then print the content of # the contents of the man page. Windows users can then print the content of
# 'WINDOWS_MAN_PAGE' by invoking ssh-audit with the manual parameters # 'WINDOWS_MAN_PAGE' by invoking ssh-audit with the manual parameters
# (--manual / -m). # (--manual / -m).
# #
# Cygwin is required. # Cygwin is required.
@ -45,7 +45,7 @@
# #
################################################################################ ################################################################################
function usage { usage() {
echo >&2 "Usage: $0 [-m <path-to-man-page>] [-g <path-to-globals.py>] [-h]" echo >&2 "Usage: $0 [-m <path-to-man-page>] [-g <path-to-globals.py>] [-h]"
echo >&2 " -m Specify an alternate man page path (default: ./ssh-audit.1)" echo >&2 " -m Specify an alternate man page path (default: ./ssh-audit.1)"
echo >&2 " -g Specify an alternate globals.py path (default: ./src/ssh_audit/globals.py)" echo >&2 " -g Specify an alternate globals.py path (default: ./src/ssh_audit/globals.py)"
@ -56,17 +56,17 @@ PLATFORM="$(uname -s)"
# This script is intended for use on Linux and Cygwin only. # This script is intended for use on Linux and Cygwin only.
case "$PLATFORM" in case "$PLATFORM" in
Linux | CYGWIN*) ;; Linux | CYGWIN*) ;;
*) echo "Platform not supported: $PLATFORM" *)
exit 1 echo "Platform not supported: $PLATFORM"
;; exit 1
;;
esac esac
MAN_PAGE=./ssh-audit.1 MAN_PAGE=./ssh-audit.1
GLOBALS_PY=./src/ssh_audit/globals.py GLOBALS_PY=./src/ssh_audit/globals.py
while getopts "m: g: h" OPTION while getopts "m: g: h" OPTION; do
do
case "$OPTION" in case "$OPTION" in
m) m)
MAN_PAGE="$OPTARG" MAN_PAGE="$OPTARG"
@ -87,11 +87,11 @@ do
done done
# Check that the specified files exist. # Check that the specified files exist.
[ -f "$MAN_PAGE" ] || { echo >&2 "man page file not found: $MAN_PAGE"; exit 1; } [[ -f "$MAN_PAGE" ]] || { echo >&2 "man page file not found: $MAN_PAGE"; exit 1; }
[ -f "$GLOBALS_PY" ] || { echo >&2 "globals.py file not found: $GLOBALS_PY"; exit 1; } [[ -f "$GLOBALS_PY" ]] || { echo >&2 "globals.py file not found: $GLOBALS_PY"; exit 1; }
# Check that the 'ul' (do underlining) binary exists. # Check that the 'ul' (do underlining) binary exists.
if [[ "$PLATFORM" = Linux ]]; then if [[ "$PLATFORM" == "Linux" ]]; then
command -v ul >/dev/null 2>&1 || { echo >&2 "ul not found."; exit 1; } command -v ul >/dev/null 2>&1 || { echo >&2 "ul not found."; exit 1; }
fi fi
@ -107,21 +107,21 @@ sed -i '/^WINDOWS_MAN_PAGE/d' "$GLOBALS_PY"
echo "Processing man page at ${MAN_PAGE} and placing output into ${GLOBALS_PY}..." echo "Processing man page at ${MAN_PAGE} and placing output into ${GLOBALS_PY}..."
# Append the man page content to 'globals.py'. # Append the man page content to 'globals.py'.
# * man outputs a backspace-overwrite sequence rather than an ANSI escape # * man outputs a backspace-overwrite sequence rather than an ANSI escape
# sequence. # sequence.
# * 'MAN_KEEP_FORMATTING' preserves the backspace-overwrite sequence when # * 'MAN_KEEP_FORMATTING' preserves the backspace-overwrite sequence when
# redirected to a file or a pipe. # redirected to a file or a pipe.
# * sed converts unicode hyphens into an ASCI equivalent. # * sed converts unicode hyphens into an ASCI equivalent.
# * The 'ul' command converts the backspace-overwrite sequence to an ANSI # * The 'ul' command converts the backspace-overwrite sequence to an ANSI
# escape sequence. Not required under Cygwin because man outputs ANSI escape # escape sequence. Not required under Cygwin because man outputs ANSI escape
# codes automatically. # codes automatically.
echo WINDOWS_MAN_PAGE = '"""' >> "$GLOBALS_PY" echo WINDOWS_MAN_PAGE = '"""' >> "$GLOBALS_PY"
if [[ "$PLATFORM" = CYGWIN* ]]; then if [[ "$PLATFORM" == CYGWIN* ]]; then
MANWIDTH=80 MAN_KEEP_FORMATTING=1 man "$MAN_PAGE" | sed $'s/\u2010/-/g' >> "$GLOBALS_PY" MANWIDTH=80 MAN_KEEP_FORMATTING=1 man "$MAN_PAGE" | sed $'s/\u2010/-/g' >> "$GLOBALS_PY"
else else
MANWIDTH=80 MAN_KEEP_FORMATTING=1 man "$MAN_PAGE" | ul | sed $'s/\u2010/-/g' >> "$GLOBALS_PY" MANWIDTH=80 MAN_KEEP_FORMATTING=1 man "$MAN_PAGE" | ul | sed $'s/\u2010/-/g' >> "$GLOBALS_PY"
fi fi
echo '"""' >> "$GLOBALS_PY" echo '"""' >> "$GLOBALS_PY"