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Yuval Avrahami Profile picture
Yuval Avrahami
@yuvalavra
Vulnerability research @wiz_io
Jan 15 • 7 tweets • 3 min read
We hacked the AWS JavaScript SDK, a core library powering the entire @AWScloud ecosystem - including the AWS Console itself 🤯

How did we do it? Just two missing characters was all it took.

This is the story of #CodeBreach 🧵👇 Image Following a surge in CI/CD attacks, we decided to scan for public CodeBuild projects, and noticed a strange auth setting in core AWS repos.

When verifying if a @GitHub account could trigger a build, it didn’t check for specific account IDs - it matched against a regex filter 🤔 Image