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Merge pull request #399 from MrSecure/obsolete_runtimes

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Add check for unsupported lambda runtimes
This commit is contained in:
Toni de la Fuente
2019-10-22 15:29:26 +02:00
committed by GitHub
parent e25ea9621b 827b1fdb3b
commit c460e351a4
2 changed files with 45 additions and 1 deletions
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44
checks/check_extra762 Normal file
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@@ -0,0 +1,44 @@
#!/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_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"
extra762(){
# 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)'
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
}

2
groups/group7_extras
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@@ -15,7 +15,7 @@ GROUP_ID[7]='extras'
GROUP_NUMBER[7]='7.0'
GROUP_TITLE[7]='Extras - [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,extra737,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra757,extra758,extra761'
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,extra737,extra738,extra739,extra740,extra741,extra742,extra743,extra744,extra745,extra746,extra747,extra748,extra749,extra750,extra751,extra752,extra753,extra754,extra755,extra756,extra757,extra758,extra761,extra762'
# Extras 759 and 760 (lambda variables and code secrets finder are not included)
# to run detect-secrets use `./prowler -g secrets`