Rotate your credentials and dont forget MFA

According to the Well-Architected Framework and the least privileges principle, you should change your access keys and login password regularly. Therefore the user should have the right to edit their credentials. But only their own. Also using MFA - multi-factor authentication enhances the security even more. Therefore the user should be able to change MFA. But only their own. But how to do that? You have to combine two parts of AWS documentation. We will show you how you provide a “self-editing” group for your users with the CDK.

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Advanced Credential Rotation for IAM Users with a Grace Period

Rotating credentials with grace can be challenging when the underlying service doesn’t support scheduled deletion. Today I will show you how to implement access key rotation for an IAM user while supporting a grace period where both the new and old

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Defenders - caller based EC2 security with CDK

Defenders: Caller based EC2 security The risk with security credentials is that they get exposed an are being used elsewhere. What if we could prevent that the are being used elsewhere. The idea from the article of William Bengston from netflix was: Dynam

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Secretless Terraform Deployments

When deploying AWS infrastructure via Terraform, the usage of long-term IAM credentials is often the go-to method. Even though convenient, long-term credentials and secrets can pose a serious security risk to your organization if leaked. This post will sh

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(Prevent) Hacking into a CloudService - About security, ECS and terraform AWS UserGroup Hannover Online Meetup Feb, 4th 2021

Yoni: Oftentimes, when we think about protecting resources in the cloud, we immediately think about the typical ways in - via public-facing applications or abuse of credentials. In this talk, we will look at one additional way: through the work unit param

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HIVE_CURSOR_ERROR in Athena when reading parquet files written by pandas

In a recent project, a colleague asked me to look at a HIVE_CURSOR_ERROR in Athena that they weren’t able to get rid of. Since the error message was not incredibly helpful and the way this error appeared is not that uncommon, I thought writing this

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