Dynamic Debugging — Patch Run-Time Check
reverse · easy · +30 XP
Target
GET /api/lab/dynamic-debug-101/disasm (snippet around the license check)
POST /api/lab/dynamic-debug-101/run body {breakpoint_addr, action} (flip_zf|patch_jne|noop)
Goal: the check at 0x4015a0 calls verify_license, then JNE 0x4015c8 (fail branch). Set a breakpoint at the JNE, flip ZF (action='flip_zf') — server simulates the run.
// AI hint · first is free · then 1 credit or 5 XP
// attack console
/api/lab/dynamic-debug-101/
// reuse on the cli
// submit flag
// no solves yet
6 of 12 · reverse