From d7eb1141f53e9679c1fd46d8341311469c00fd40 Mon Sep 17 00:00:00 2001 From: Colin Johnson Date: Sun, 7 Jul 2013 01:06:03 +0000 Subject: [PATCH] initial checkin of iam-keyfind.sh. --- iam-keyfind/README.md | 14 +++++++ iam-keyfind/iam-keyfind.sh | 76 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 90 insertions(+) create mode 100644 iam-keyfind/README.md create mode 100755 iam-keyfind/iam-keyfind.sh diff --git a/iam-keyfind/README.md b/iam-keyfind/README.md new file mode 100644 index 0000000..f957836 --- /dev/null +++ b/iam-keyfind/README.md @@ -0,0 +1,14 @@ +# Introduction: +iam-keyfind was created to either list all Access Keys used by IAM users or by finding a particular IAM key. +# Directions For Use: +## Example of Use, List Mode: + iam-keyfind.sh +the above example would print a comma separated list of all users and their Access Keys. +## Example of Use, Find Mode: + iam-keyfind.sh -f AIDAI54SVGW36XBJ3XBVA +the above example would examine all IAM Users and return the IAM User that utilizes the Access Key AIDAI54SVGW36XBJ3XBVA. +# Additional Information: +- Author: Colin Johnson / colin@cloudavail.com +- Date: 2013-07-07 +- Version 0.1 +- License Type: GNU GENERAL PUBLIC LICENSE, Version 3 diff --git a/iam-keyfind/iam-keyfind.sh b/iam-keyfind/iam-keyfind.sh new file mode 100755 index 0000000..4d85063 --- /dev/null +++ b/iam-keyfind/iam-keyfind.sh @@ -0,0 +1,76 @@ +#!/bin/bash - +# Author: Colin Johnson / colin@cloudavail.com +# Date: 2013-07-07 +# Version 0.1 +# License Type: GNU GENERAL PUBLIC LICENSE, Version 3 + +#confirms that executables required for succesful script execution are available +prerequisite_check() +{ + for prerequisite in basename cut grep iam-userlistbypath iam-usergetattributes + do + #use of "hash" chosen as it is a shell builtin and will add programs to hash table, possibly speeding execution. Use of type also considered - open to suggestions. + hash $prerequisite &> /dev/null + if [[ $? == 1 ]] #has exits with exit status of 70, executable was not found + then echo "In order to use $(basename $0), the executable \"$prerequisite\" must be installed." 1>&2 ; exit 70 + fi + done +} + +return_all_keys() +{ + for user in $users + do + access_key=$(iam-usergetattributes -u $user | grep -v "^arn") + echo "$user,$access_key" + done +} + +return_found_key() +{ + key_found=false + users_examined=0 + user_containing_key="" + for user in $users + do + access_key=$(iam-usergetattributes -u $user | grep -v "^arn") + if [[ "$find_access_key" == "$access_key" ]] + then key_found=true + user_containing_key=$user + break + else + users_examined=$((users_examined + 1)) + fi + done + if $key_found + then echo "The Access Key \"$find_access_key\" belongs to the IAM user named \"$user_containing_key.\"" + else + echo "The Access Key \"$find_access_key\" does not belong to any IAM users. $app_name examined a total of $users_examined users." + fi +} + +#calls prerequisitecheck function to ensure that all executables required for script execution are available +prerequisite_check + +app_name=$(basename $0) +mode="all_keys" + +while getopts :f: opt + do + case $opt in + f) find_access_key="$OPTARG" ; mode="find_key";; + *) echo "Error with Options Input. Cause of failure is most likely that an unsupported parameter was passed or a parameter was passed without a corresponding option." 1>&2 ; exit 64;; + esac + done + +#gets a list of all users for the current account +#grep "arn:aws:iam" removes return values that aren't actually IAM users. An example would be the last value returned from iam-userlistbypath which is "IsTruncated: false" +users=$(iam-userlistbypath -i 1000 | grep "arn:aws:iam" | cut -f2 -d "/") + +if [[ $mode == "find_key" ]] + then return_found_key +elif [[ $mode == "all_keys" ]] + then return_all_keys +else + echo "An error occured when running $app_name. $app_name will now exit." 1>&2 ; exit 70 +fi \ No newline at end of file