$ cat writeup.md…
$ cat writeup.md…
HackTheBox
Task: HTB Linux machine chaining a Flask scheduler, an AWS emulator, and container workers. Solution: SSRF bypasses steal IMDS creds; SQS job injection gives worker RCE; a CodeBuild BASH_FUNC_* env var bypasses the gosu drop; kernel.core_pattern + overlay upperdir escape the privileged container as host root.
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