diff --git a/checks/check_extra7179 b/checks/check_extra7179 new file mode 100644 index 00000000..4ab221cf --- /dev/null +++ b/checks/check_extra7179 @@ -0,0 +1,68 @@ +#!/usr/bin/env bash + +# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy +# of the License at http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed +# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +# CONDITIONS OF ANY KIND, either express or implied. See the License for the +# specific language governing permissions and limitations under the License. +CHECK_ID_extra7179="7.179" +CHECK_TITLE_extra7179="[extra7179] Check Public Lambda Function URL" +CHECK_SCORED_extra7179="NOT_SCORED" +CHECK_CIS_LEVEL_extra7179="EXTRA" +CHECK_SEVERITY_extra7179="Critical" +CHECK_ASFF_RESOURCE_TYPE_extra7179="AwsLambdaFunction" +CHECK_ALTERNATE_check7179="extra7179" +CHECK_SERVICENAME_extra7179="lambda" +CHECK_RISK_extra7179='Publicly accessible services could expose sensitive data to bad actors.' +CHECK_REMEDIATION_extra7179='Grant usage permission on a per-resource basis and applying least privilege principle.' +CHECK_DOC_extra7179='https://docs.aws.amazon.com/secretsmanager/latest/userguide/lambda-functions.html' +CHECK_CAF_EPIC_extra7179='Infrastructure Security' + +extra7179(){ + # Check if Lambda function URL is public + # None --> Public + local PUBLIC_AUTH_TYPE="NONE" + # AWS_IAM --> Private + local PRIVATE_AUTH_TYPE="AWS_IAM" + + for regx in ${REGIONS}; do + LIST_OF_FUNCTIONS=$("${AWSCLI}" lambda list-functions ${PROFILE_OPT} \ + --region "${regx}" \ + --query 'Functions[*].FunctionName' \ + --output text 2>&1) + # Check errors + if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${LIST_OF_FUNCTIONS}"; then + textInfo "${regx}: Access Denied trying to list Lambda functions" "${regx}" + continue + fi + if [[ -n "${LIST_OF_FUNCTIONS}" && $(tr '[:upper:]' '[:lower:]' <<< "${LIST_OF_FUNCTIONS}") != "none" ]]; then + for lambda_function in ${LIST_OF_FUNCTIONS}; do + AUTH_TYPE=$("${AWSCLI}" lambda list-function-url-configs ${PROFILE_OPT} \ + --function-name "${lambda_function}" \ + --region "${regx}" \ + --query 'FunctionUrlConfigs[0].AuthType' \ + --output text) + # Check errors + if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${AUTH_TYPE}"; then + textInfo "${regx}: Access Denied trying to get Lambda functions URLs configuration" "${regx}" + continue + fi + + if [[ "${AUTH_TYPE}" == "${PUBLIC_AUTH_TYPE}" ]]; then + textFail "${regx}: Lambda function ${lambda_function} has a publicly accessible function URL" "${regx}" "${lambda_function}" + elif [[ "${AUTH_TYPE}" == "${PRIVATE_AUTH_TYPE}" ]]; then + textPass "${regx}: Lambda function ${lambda_function} has not a publicly accessible function URL" "${regx}" "${lambda_function}" + else + textInfo "${regx}: Lambda function ${lambda_function} has not a function URL" "${regx}" "${lambda_function}" + fi + done + else + textInfo "${regx}: No Lambda functions found" "${regx}" + fi + done +} diff --git a/checks/check_extra7180 b/checks/check_extra7180 new file mode 100644 index 00000000..10cb68f1 --- /dev/null +++ b/checks/check_extra7180 @@ -0,0 +1,81 @@ +#!/usr/bin/env bash + +# Prowler - the handy cloud security tool (copyright 2019) by Toni de la Fuente +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy +# of the License at http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software distributed +# under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +# CONDITIONS OF ANY KIND, either express or implied. See the License for the +# specific language governing permissions and limitations under the License. +CHECK_ID_extra7180="7.180" +CHECK_TITLE_extra7180="[extra7180] Check Lambda Function URL CORS configuration" +CHECK_SCORED_extra7180="NOT_SCORED" +CHECK_CIS_LEVEL_extra7180="EXTRA" +CHECK_SEVERITY_extra7180="Critical" +CHECK_ASFF_RESOURCE_TYPE_extra7180="AwsLambdaFunction" +CHECK_ALTERNATE_check7180="extra7180" +CHECK_SERVICENAME_extra7180="lambda" +CHECK_RISK_extra7180='Publicly accessible services could expose sensitive data to bad actors.' +CHECK_REMEDIATION_extra7180='Grant usage permission on a per-resource basis and applying least privilege principle.' +CHECK_DOC_extra7180='https://docs.aws.amazon.com/secretsmanager/latest/userguide/lambda-functions.html' +CHECK_CAF_EPIC_extra7180='Infrastructure Security' + +extra7180(){ + for regx in ${REGIONS}; do + LIST_OF_FUNCTIONS=$("${AWSCLI}" lambda list-functions ${PROFILE_OPT} \ + --region "${regx}" \ + --query 'Functions[*].FunctionName' \ + --output text 2>&1) + # Check errors + if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${LIST_OF_FUNCTIONS}"; then + textInfo "${regx}: Access Denied trying to list Lambda functions" "${regx}" + continue + fi + if [[ -n "${LIST_OF_FUNCTIONS}" && $(tr '[:upper:]' '[:lower:]' <<< "${LIST_OF_FUNCTIONS}") != "none" ]]; then + for lambda_function in ${LIST_OF_FUNCTIONS}; do + # Check if Lambda function has an URL + LAMBDA_FUNCTION_URL=$("${AWSCLI}" lambda list-function-url-configs ${PROFILE_OPT} \ + --function-name "${lambda_function}" \ + --region "${regx}" \ + --query 'FunctionUrlConfigs[0].[FunctionUrl]' \ + --output text) + # Check errors + if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${AUTH_TYPE}"; then + textInfo "${regx}: Access Denied trying to get Lambda functions URLs" "${regx}" + continue + fi + + if [[ "${LAMBDA_FUNCTION_URL}" != "None" ]]; then + # Check CORS configuration + CORS_ALLOW_ORIGINS=$("${AWSCLI}" lambda get-function-url-config ${PROFILE_OPT} \ + --function-name "${lambda_function}" \ + --region "${regx}" \ + --query 'Cors.AllowOrigins' \ + --output text) + # Check errors + if grep -q -E 'AccessDenied|UnauthorizedOperation|AuthorizationError' <<< "${AUTH_TYPE}"; then + textInfo "${regx}: Access Denied trying to get Lambda functions URLs configuration" "${regx}" + continue + fi + + # The * is on purpose to check allowed origins + if [[ "${CORS_ALLOW_ORIGINS}" =~ "*" ]]; then + textFail "$regx: Lambda function ${lambda_function} URL has a wide CORS configuration" "${regx}" "${lambda_function}" + elif [[ "${CORS_ALLOW_ORIGINS}" == "None" ]]; then + textFail "${regx}: Lambda function ${lambda_function} URL has not CORS configured" "${regx}" "${lambda_function}" + else + textPass "${regx}: Lambda function ${lambda_function} has not a wide CORS configuration" "${regx}" "${lambda_function}" + fi + + else + textInfo "${regx}: Lambda function ${lambda_function} has not a function URL" "${regx}" "${lambda_function}" + fi + done + else + textInfo "${regx}: No Lambda functions found" "${regx}" + fi + done +} diff --git a/groups/group7_extras b/groups/group7_extras index 31186ecc..5f6c1661 100644 --- a/groups/group7_extras +++ b/groups/group7_extras @@ -15,9 +15,9 @@ GROUP_ID[7]='extras' GROUP_NUMBER[7]='7.0' GROUP_TITLE[7]='Extras - all non CIS specific checks - [extras] ****************' GROUP_RUN_BY_DEFAULT[7]='Y' # run it when execute_all is called -GROUP_CHECKS[7]='extra71,extra72,extra73,extra74,extra75,extra76,extra77,extra78,extra79,extra710,extra711,extra712,extra713,extra714,extra715,extra716,extra717,extra718,extra719,extra720,extra721,extra722,extra723,extra724,extra725,extra726,extra727,extra728,extra729,extra730,extra731,extra732,extra733,extra734,extra735,extra736,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra757,extra758,extra761,extra762,extra763,extra764,extra765,extra767,extra768,extra769,extra770,extra771,extra772,extra773,extra774,extra775,extra776,extra777,extra778,extra779,extra780,extra781,extra782,extra783,extra784,extra785,extra786,extra787,extra788,extra791,extra792,extra793,extra794,extra795,extra796,extra797,extra798,extra799,extra7100,extra7101,extra7102,extra7103,extra7104,extra7105,extra7106,extra7107,extra7108,extra7109,extra7110,extra7111,extra7112,extra7113,extra7114,extra7115,extra7116,extra7117,extra7118,extra7119,extra7120,extra7121,extra7122,extra7123,extra7124,extra7125,extra7126,extra7127,extra7128,extra7129,extra7130,extra7131,extra7132,extra7133,extra7134,extra7135,extra7136,extra7137,extra7138,extra7139,extra7140,extra7141,extra7142,extra7143,extra7144,extra7145,extra7146,extra7147,extra7148,extra7149,extra7150,extra7151,extra7152,extra7153,extra7154,extra7155,extra7156,extra7157,extra7158,extra7159,extra7160,extra7161,extra7162,extra7163,extra7164,extra7165,extra7166,extra7167,extra7168,extra7169,extra7170,extra7171,extra7172,extra7173,extra7174,extra7175,extra7176,extra7177,extra7178' +GROUP_CHECKS[7]='extra71,extra72,extra73,extra74,extra75,extra76,extra77,extra78,extra79,extra710,extra711,extra712,extra713,extra714,extra715,extra716,extra717,extra718,extra719,extra720,extra721,extra722,extra723,extra724,extra725,extra726,extra727,extra728,extra729,extra730,extra731,extra732,extra733,extra734,extra735,extra736,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra757,extra758,extra761,extra762,extra763,extra764,extra765,extra767,extra768,extra769,extra770,extra771,extra772,extra773,extra774,extra775,extra776,extra777,extra778,extra779,extra780,extra781,extra782,extra783,extra784,extra785,extra786,extra787,extra788,extra791,extra792,extra793,extra794,extra795,extra796,extra797,extra798,extra799,extra7100,extra7101,extra7102,extra7103,extra7104,extra7105,extra7106,extra7107,extra7108,extra7109,extra7110,extra7111,extra7112,extra7113,extra7114,extra7115,extra7116,extra7117,extra7118,extra7119,extra7120,extra7121,extra7122,extra7123,extra7124,extra7125,extra7126,extra7127,extra7128,extra7129,extra7130,extra7131,extra7132,extra7133,extra7134,extra7135,extra7136,extra7137,extra7138,extra7139,extra7140,extra7141,extra7142,extra7143,extra7144,extra7145,extra7146,extra7147,extra7148,extra7149,extra7150,extra7151,extra7152,extra7153,extra7154,extra7155,extra7156,extra7157,extra7158,extra7159,extra7160,extra7161,extra7162,extra7163,extra7164,extra7165,extra7166,extra7167,extra7168,extra7169,extra7170,extra7171,extra7172,extra7173,extra7174,extra7175,extra7176,extra7177,extra7178,extra7179,extra7180' -# Extras 759 and 760 (lambda variables and code secrets finder are not included) +# Extras 759 and 760 (lambda variables and code secrets finder are not included) # to run detect-secrets use `./prowler -g secrets` # Extras 789 and 790 VPC trust boundaries are not included by default in Extras