$ ctf42

Challenges

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Higher weight ≈ harder, more prestigious event.
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16 challenges · browse all techniques

Challenge CTF Weight Category Has
Blindspot
#schnorr#nonce-reuse#signature-forgery
 SAS 2025 Quals 20.72 Web files wu 1
Bubble_Tea_Diaries
#stored-xss#bbcode-parser#html-escape-bypass#jwt
 SAS 2025 Quals 20.72 Web files wu 1
Drift_Chat
#broken-access-control#missing-return#go
 SAS 2025 Quals 20.72 Web files wu 1
Proxy
#ssrf#caddy-admin-api#log-injection#rce
 SAS 2025 Quals 20.72 Web files wu 1
bigbabycode
#mceliece#hamming-code#error-correction
 SAS 2025 Quals 20.72 Web files wu 1
Gav SAS 2026 Quals 31.00 Web files
Nexus_as_a_Service SAS 2026 Quals 31.00 Web files
Redis_Nightmare SAS 2026 Quals 31.00 Web files
XOD_Revenge SAS 2026 Quals 31.00 Web files
Blindspot_Revenge SAS 2025 Quals 20.72 Web files
Burmalda SAS 2025 Quals 20.72 Web files
Drift_Chat_Revenge SAS 2025 Quals 20.72 Web files
GigaUpload SAS 2025 Quals 20.72 Web files
Goofy_Ahh_Frontend SAS 2025 Quals 20.72 Web files
SCP_522 SAS 2025 Quals 20.72 Web files
Bad_old_days SAS 2024 Quals 20.72 Web files