RatCTF
🐀🐀🐀 0 pts earned

Lane: Heap

Premium Machine (Locked)

🧩 MemoryLane

🖧 AD Network — MemoryLane

🔒 Lane: Ret2Win 🔒 Lane: Shellcode 🔒 Lane: ROP Chain 🔒 Lane: Format Str Lane: Heap

32-bit SUID binary with a use-after-free vulnerability. A struct with a function pointer is freed and then reallocated. Control the reallocation to overwrite the function pointer and redirect execution to win().

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Machine online
Target IP Premium required
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Community

Community Hints

Grade A · 1000 pts Grade B · 700 pts Grade C · 400 pts Grade D · 200 pts + 150 credits on accept

Short, stage-specific nudges — directional, spoiler-light, no exact commands.

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Community

Community Walkthroughs

Grade A · 2500 pts Grade B · 1750 pts Grade C · 1000 pts Grade D · 500 pts + 300 credits on accept

🔒 Community walkthroughs are spoilers — capture the root flag on this machine to unlock them.