Sebastian's Blog

software developer. security enthusiast.

HACKvent 2019

HV19.02 Triangulation


Today we give away decorations for your Christmas tree. But be careful and do not break it.

Attached to that we receive a STL file named Triangulation. This file is a 3D model.

Opening this in blender and peeling the shell. Showed that it contains another shell. Peeling this again revealed an AZTEC code. Tweaking the thiccness got me the following model, which I was able to scan.

The flag is HV19{Cr4ck_Th3_B411!}.

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