Pocket CTFHard
ReferenceSwitch trackTiny board.
Real lessons.
Capture all 6 flags. Everything you need is inside this isolated network.
OPEN
1. Traversal Trap
Audit a file API that joins trusted and untrusted paths.
InvestigateOPEN
2. Checksum Crown
Determine whether a token has cryptographic integrity.
InvestigateOPEN
3. Short PIN Audit
Evaluate a fast hash protecting a tiny keyspace.
InvestigateOPEN
4. Protocol Chain
Chain method discovery, client analysis, headers, and decoding.
InvestigateOPEN
5. Predictable Recovery
Predict a security token generated by a deterministic public sequence.
InvestigateOPEN
6. Signed Sidecar
Determine whether a valid MAC covers every security-sensitive field.
InvestigateSubmit a flag
Progress: 0 / 6