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Merge pull request #399 from MrSecure/obsolete_runtimes
Add check for unsupported lambda runtimes
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#!/usr/bin/env bash | ||
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# 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_extra762="7.62" | ||
CHECK_TITLE_extra762="[extra762] Find obsolete Lambda runtimes (Not Scored) (Not part of CIS benchmark)" | ||
CHECK_SCORED_extra762="NOT_SCORED" | ||
CHECK_TYPE_extra762="EXTRA" | ||
CHECK_ALTERNATE_check762="extra762" | ||
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extra762(){ | ||
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# regex to match OBSOLETE runtimes in string functionName%runtime | ||
# https://docs.aws.amazon.com/lambda/latest/dg/runtime-support-policy.html | ||
OBSOLETE='%(nodejs4.3|nodejs4.3-edge|nodejs6.10|nodejs8.10|dotnetcore1.0|dotnetcore2.0)' | ||
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textInfo "Looking for deprecated runtimes used by Lambda functions across all regions... " | ||
textInfo "This check may take a while depending on the number of functions. " | ||
for regx in $REGIONS; do | ||
LIST_OF_FUNCTIONS=$($AWSCLI lambda list-functions $PROFILE_OPT --region $regx --output text --query 'Functions[*].{R:Runtime,N:FunctionName}' | tr "\t" "%") | ||
if [[ $LIST_OF_FUNCTIONS ]]; then | ||
for lambdafunction in $LIST_OF_FUNCTIONS;do | ||
fname=$(echo "$lambdafunction" | cut -d'%' -f1) | ||
runtime=$(echo "$lambdafunction" | cut -d'%' -f2) | ||
if echo "$lambdafunction" | grep -Eq $OBSOLETE ; then | ||
# obselete runtime found | ||
textFail "$regx: Obsolete ${runtime} runtime found in Lambda funtion ${fname}" "$regx" | ||
else | ||
textPass "$regx: Supported ${runtime} runtime found in Lambda function ${fname}" "$regx" | ||
fi | ||
done | ||
else | ||
textInfo "$regx: No Lambda functions found" "$regx" | ||
fi | ||
done | ||
} |
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