Writeups
Writeups from competitions we have participated in, grouped by event, written by the members who competed.
BYUCTF 2026 PICKLE RICK MISC
Analysis of the PICKLE RICK challenge and how it was approached and solved.
BYUCTF 2026 RSA DREAMS
Analysis of the RSA DREAMS challenge and how it was approached and solved.
BYUCTF 2026 CUSTOM CIPHER
Analysis of the CUSTOM CIPHER challenge and how it was approached and solved.
BYUCTF 2026 GLADOS NETWORK
Analysis of the GLADOS NETWORK challenge and how it was approached and solved.
BYUCTF 2026 CHROMATIC
Analysis of the CHROMATIC challenge and how it was approached and solved.
BYUCTF 2026 MY-CAT
Analysis of the MY-CAT challenge and how it was approached and solved.
BYUCTF 2026 -RCAAS
Analysis of the RCAAS challenge and how it was approached and solved.
BYUCTF PWN INCONTINENT
Analysis of the INCONTINENT challenge and how it was approached and solved.
Velvet Rehearsal
Analysis of the challenge and how it was approached and solved.
Touchline Dispatch
Analysis of the challenge and how it was approached and solved.
Through The Cracks
Analysis of the challenge and how it was approached and solved.
Secret Vault
Analysis of the challenge and how it was approached and solved.
Second Look
Analysis of the challenge and how it was approached and solved.
Quick Recovery
Analysis of the challenge and how it was approached and solved.
Midnight Feedback
Analysis of the challenge and how it was approached and solved.
Lightweight Directory
Analysis of the challenge and how it was approached and solved.
JWT Forgery
Analysis of the challenge and how it was approached and solved.
Inside Job
Analysis of the challenge and how it was approached and solved.
HEAD Office
Analysis of the challenge and how it was approached and solved.
Ginger Juice Shop
Analysis of the challenge and how it was approached and solved.
Citrus Proof
Analysis of the challenge and how it was approached and solved.
Blank Space
Analysis of the challenge and how it was approached and solved.
Between Us
Analysis of the challenge and how it was approached and solved.
At The Limit
Analysis of the challenge and how it was approached and solved.
Archived
Analysis of the challenge and how it was approached and solved.
SecureVault
Analysis of the challenge and how it was approached and solved.
Second Pressing
Analysis of the challenge and how it was approached and solved.
Matchday Replay
Analysis of the challenge and how it was approached and solved.
Midnight Parcel
Analysis of the challenge and how it was approached and solved.
Insecure Deserialization
Analysis of the challenge and how it was approached and solved.
Ssti Template Eval
Analysis of the challenge and how it was approached and solved.
Graphql Schema Leak
Analysis of the challenge and how it was approached and solved.
Cors Credential Leak
Analysis of the challenge and how it was approached and solved.
Prototype Pollution
Analysis of the challenge and how it was approached and solved.
Xxe External Entity
Analysis of the challenge and how it was approached and solved.
Ssrf Metadata Proxy
Analysis of the challenge and how it was approached and solved.
Jwt None Algorithm
Analysis of the challenge and how it was approached and solved.
Path Traversal
Analysis of the challenge and how it was approached and solved.
Sql Auth Bypass
Analysis of the challenge and how it was approached and solved.
Git Metadata Leak
Analysis of the challenge and how it was approached and solved.
Hidden Form Input
Analysis of the challenge and how it was approached and solved.
Robots Txt
Analysis of the challenge and how it was approached and solved.
Cookie Tamper
Analysis of the challenge and how it was approached and solved.
Header Sleuth
Analysis of the challenge and how it was approached and solved.
Saml Signature Wrap
Analysis of the challenge and how it was approached and solved.
Ptrace Antidebug
Analysis of the challenge and how it was approached and solved.
Gdb Rax Inspection
Analysis of the challenge and how it was approached and solved.
Instruction Patching
Analysis of the challenge and how it was approached and solved.
Java Class Cfr
Analysis of the challenge and how it was approached and solved.
Pyc Decompilation
Analysis of the challenge and how it was approached and solved.
Upx Decompression
Analysis of the challenge and how it was approached and solved.
Ltrace Intercept
Analysis of the challenge and how it was approached and solved.
Strings Grep
Analysis of the challenge and how it was approached and solved.
Arm64 Baremetal
Analysis of the challenge and how it was approached and solved.
Wasm Decompilation
Analysis of the challenge and how it was approached and solved.
Tcache Poisoning
Analysis of the challenge and how it was approached and solved.
Heap Use After Free
Analysis of the challenge and how it was approached and solved.
Integer Wrap
Analysis of the challenge and how it was approached and solved.
Format String Leak
Analysis of the challenge and how it was approached and solved.
Shellcode Rwx
Analysis of the challenge and how it was approached and solved.
Stack Var Overwrite
Analysis of the challenge and how it was approached and solved.
Ret2Win Overwrite
Analysis of the challenge and how it was approached and solved.
Srop Registers
Analysis of the challenge and how it was approached and solved.
Kerberos Tgs Dump
Analysis of the challenge and how it was approached and solved.
Browser Sqlite History
Analysis of the challenge and how it was approached and solved.
Ntfs Mft Parsing
Analysis of the challenge and how it was approached and solved.
Icmp Tunnel Exfil
Analysis of the challenge and how it was approached and solved.
Zip Known Plaintext
Analysis of the challenge and how it was approached and solved.
Steghide Audio
Analysis of the challenge and how it was approached and solved.
Png Magic Bytes
Analysis of the challenge and how it was approached and solved.
Exif Metadata
Analysis of the challenge and how it was approached and solved.
Pcap Cleartext
Analysis of the challenge and how it was approached and solved.
Aes Memory Keyschedule
Analysis of the challenge and how it was approached and solved.
Ext4 Inode Carving
Analysis of the challenge and how it was approached and solved.
Usb Hid Keystrokes
Analysis of the challenge and how it was approached and solved.
Lcg Predict
Analysis of the challenge and how it was approached and solved.
Diffie Hellman G1
Analysis of the challenge and how it was approached and solved.
Vigenere Cipher
Analysis of the challenge and how it was approached and solved.
Rot13 Classic
Analysis of the challenge and how it was approached and solved.
Ecdsa Nonce Reuse
Analysis of the challenge and how it was approached and solved.
Bleichenbacher Oracle
Analysis of the challenge and how it was approached and solved.
Shodan Unauth Mqtt
Analysis of the challenge and how it was approached and solved.
Asn Bgp Prefix
Analysis of the challenge and how it was approached and solved.
Ec2 Imds V1
Analysis of the challenge and how it was approached and solved.
Github Commit Keys
Analysis of the challenge and how it was approached and solved.
Osint Geolocation
Analysis of the challenge and how it was approached and solved.
Dns Historic Records
Analysis of the challenge and how it was approached and solved.
K8S Service Account
Analysis of the challenge and how it was approached and solved.
Docker Socket Mount
Analysis of the challenge and how it was approached and solved.
Iam Privilege Escalate
Analysis of the challenge and how it was approached and solved.
S3 Open Bucket
Analysis of the challenge and how it was approached and solved.
Satellite Sar Analysis
Analysis of the challenge and how it was approached and solved.
Cloudtrail Regional
Analysis of the challenge and how it was approached and solved.
K8S Rbac Exec
Analysis of the challenge and how it was approached and solved.
Herbarium Writeup
Analysis of the Herbarium challenge and how it was approached and solved.
GasLightCTF 2026 - Ucas Writeup
Analysis of the Ucas challenge and how it was approached and solved.
GasLightCTF 2026 - Good Enough Writeup
Analysis of the Good Enough challenge and how it was approached and solved.
GasLightCTF 2026 - Icon Sketch Writeup
Analysis of the Icon Sketch challenge and how it was approached and solved.
GasLightCTF 2026 - Blackout Writeup
Analysis of the Blackout challenge and how it was approached and solved.
GasLightCTF 2026 - Corridors Writeup
Analysis of the Corridors challenge and how it was approached and solved.
GasLightCTF 2026 - Down The Stream 2
Analysis of the Down The Stream 2 challenge and how it was approached and solved.
GasLightCTF 2026 - Down The Stream 1
Analysis of the Down The Stream 1 challenge and how it was approached and solved.
GasLightCTF 2026 - Where the dream starts 3
Analysis of the Where the dream starts 3 challenge and how it was approached and solved.
GasLightCTF 2026 - Jsbox Writeup
Analysis of the Jsbox challenge and how it was approached and solved.
GasLightCTF 2026 - Json-Warehouse Writeup
Analysis of the Json-Warehouse challenge and how it was approached and solved.
GasLightCTF 2026 - Messageboard Writeup
Analysis of the Messageboard challenge and how it was approached and solved.
GasLightCTF 2026 - Biscuit Writeup
Analysis of the Biscuit challenge and how it was approached and solved.
GaslightCTF 2026 - Badcat Writeup
Analysis of the Badcat challenge and how it was approached and solved.
GaslightCTF 2026 - Ram Conservation Writeup
Analysis of the Ram Conservation challenge and how it was approached and solved.
GaslightCTF 2026 - CompleteHTTP Writeup
Analysis of the CompleteHTTP challenge and how it was approached and solved.
GaslightCTF 2026 - Compiled Source Sheets Writeup
Analysis of the Compiled Source Sheets challenge and how it was approached and solved.
GaslightCTF 2026 - Where the dreams start 2
Analysis of the Where the dreams start 2 challenge and how it was approached and solved.
GaslightCTF 2026 - Where the dreams start 1
Analysis of the Where the dreams start 1 challenge and how it was approached and solved.
GaslightCTF 2026 - NewJeans Is Five Writeup
Analysis of the NewJeans Is Five challenge and how it was approached and solved.
GaslightCTF 2026 - Affine Hill Writeup
Analysis of the Affine Hill challenge and how it was approached and solved.
Cybergames Kenya 2026 - Intergalactic Beaconv0
Analysis of the Intergalactic Beaconv0 challenge and how it was approached and solved.
Cybergames Kenya 2026 - Flappy Writeup
Analysis of the Flappy challenge and how it was approached and solved.
Cybergames Kenya 2026 - Tower of Hanoi: Revenge
Analysis of the Tower of Hanoi: Revenge challenge and how it was approached and solved.
Independent
8 WRITEUPSBYUCTF2026 COPPERSMITH
Analysis of the COPPERSMITH challenge and how it was approached and solved.
THE DOJO AH & PERFECTROOT
Analysis of the Ouroboros challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - Twin Spirit Channels Writeup
Analysis of the Twin Spirit Channels challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - Fortress Writeup
Analysis of the Fortress challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - D3lulu Writeup
Analysis of the D3lulu challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - Deja VM writeup
Analysis of the Deja VM challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - Deputy Ledger Writeup
Analysis of the Deputy Ledger challenge and how it was approached and solved.
AFRICC Qualifiers 2027 - Confused Deputy Writeup
Analysis of the Confused Deputy challenge and how it was approached and solved.