关于AWS Key disabler
AWS Key disabler是一款功能强大的AWS IAM用户访问密钥安全保护工具,该工具可以通过设置一个时间定量来禁用AWS IAM用户访问密钥,以此来降低旧访问密钥所带来的安全风险。
工具运行流程
AWS Key disabler本质上是一个Lambda函数,可以通过下列工作流来实现其功能:
工具要求
当前版本的AWS Key disabler脚本需要使用到下列组件:
1、Node.js和NPM;
2、Gruntjs;
3、AWS CLI命令行工具;
4、启用SWS、验证域名并移除沙盒模式的AWS账号;
开发者工具链
工具安装
注意,下列安装命令仅适用于macOS,Windows和*nix的安装命令可能会有一些区别。
首先,我们需要使用下列命令将该项目源码克隆至本地:
git clone https://github.com/te-papa/aws-key-disabler.git
切换到/grunt目录中,设置Grunt任务运行器,并安装相关依赖:
cd grunt/ npm install
然后在/grunt/package.json文件中添加下列信息:
1、设置AWS账号的aws_account_number值;
2、设置first_warning和last_warning,即触发警报邮件(发送至report_to)的天数时间;
3、设置expiry,即密钥超时天数,如果超时,则会通过电子邮件向用户发送提醒;
4、设置serviceaccount,即需要脚本忽略的账户用户名;
5、设置exclusiongroup,即需要脚本忽略的分配给用户的组名;
6、设置send_completion_report值为True以通过SES发送通知邮件;
7、设置report_to,即用于接收警报和报告的邮件地址;
8、设置report_from,即用于发送警告邮件和报告的邮件地址;
9、设置deployment_region,即支持Lambda支持的区域;
接下来,确保命令行接口已经成功连接到了AWS,可以使用下列命令验证连接是否成功:
aws iam get-user
在命令行接口中,切换到/grunt目录中,并运行下列命令即可完成工具部署:
grunt bumpup && grunt deployLambda
工具使用
使用AWS CLI从命令行接口手动调用Lambda函数
我们可以直接使用函数名称来调用Lambda函数,并将扫描文件的输出结果存储到scan.report.log文件中:
aws lambda invoke --function-name AccessKeyRotation scan.report.log --region us-east-1
{ "StatusCode": 200 }
使用jq即可在命令行窗口中查看scan.report.log文件中的内容:
jq '.' scan.report.log
{ "reportdate": "2016-06-26 10:37:24.071091", "users": [ { "username": "TestS3User", "userid": "1", "keys": [ { "age": 72, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************Q3GA1" }, { "age": 12, "changed": false, "state": "key is still young", "accesskeyid": "**************F3AA2" } ] }, { "username": "BlahUser22", "userid": "2", "keys": [] }, { "username": "LambdaFake1", "userid": "3", "keys": [ { "age": 23, "changed": false, "state": "key is due to expire in 1 week (7 days)", "accesskeyid": "**************DFG12" }, { "age": 296, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************4ZASD" } ] }, { "username": "apiuser49", "userid": "4", "keys": [ { "age": 30, "changed": true, "state": "key is now EXPIRED! Changing key to INACTIVE state", "accesskeyid": "**************ER2E2" }, { "age": 107, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************AWQ4K" } ] }, { "username": "UserEMRKinesis", "userid": "5", "keys": [ { "age": 30, "changed": false, "state": "key is now EXPIRED! Changing key to INACTIVE state", "accesskeyid": "**************MGB41A" } ] }, { "username": "CDN-Drupal", "userid": "6", "keys": [ { "age": 10, "changed": false, "state": "key is still young", "accesskeyid": "**************ZDSQ5A" }, { "age": 5, "changed": false, "state": "key is still young", "accesskeyid": "**************E3ODA" } ] }, { "username": "ChocDonutUser1", "userid": "7", "keys": [ { "age": 59, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************CSA123" } ] }, { "username": "ChocDonut2", "userid": "8", "keys": [ { "age": 60, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************FDGD2" } ] }, { "username": "[email protected]", "userid": "9", "keys": [ { "age": 45, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************BLQ5GJ" }, { "age": 71, "changed": false, "state": "key is already in an INACTIVE state", "accesskeyid": "**************GJFF53" } ] } ] }
使用样例一
aws lambda list-functions openssl dgst -binary -sha256 ..\Releases\AccessKeyRotationPackage.1.0.18.zip | openssl base64 aws lambda invoke --function-name AccessKeyRotation report.log --region us-east-1 jq '.' report.log jq '.users[] | select(.username=="johndoe")' report.log jq '.' report.log | grep age | cut -d':' -f2 | sort -n
使用样例二
jq 'def maximal_by(f): (map(f) | max) as $mx | .[] | select(f == $mx); .users | maximal_by(.keys[].age)' report.log jq 'def minimal_by(f): (map(f) | min) as $mn | .[] | select(f == $mn); .users | minimal_by(.keys[].age)' report.log
终端用户输出结果
许可证协议
本项目的开发与发布遵循ISC开源许可证协议。
项目地址
AWS Key disabler:【GitHub传送门】
参考资料
https://portal.aws.amazon.com/gp/aws/manageYourAccount
https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/
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