2026weight 31.00Drovosec, SAS CREW

SAS CTF 2026 Quals

3 challenges with 3 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.

Full task list on CTFtime

Binary exploitation1

Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.

Solve it with:ROP gadget finder Shellcode assembler and library Cyclic pattern generator and offset finder Format string exploit builder Learn: Binary exploitation

Snaking Revenge
171 pts1 writeup
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3

Forensics1

Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.

Solve it with:File type identifier by magic bytes Magic byte and file signature table PCAP analyzer for CTF network forensics EXIF metadata viewer Learn: File forensics and carving Learn: Network forensics

Incident 67
82 pts1 writeup
- network
- bgp
Same technique in picoCTF: FindAndOpen, c0rrupt, extensions

Misc1

Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.

Solve it with:Brainfuck and esolang decoder Cipher identifier and automatic decoder Regex tester with match offsets and capture groups Learn: Recognising encodings

Kolobok
254 pts1 writeup
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook

Binary exploitation1

Snaking Revenge

Forensics1

Incident 67

Misc1

Kolobok

Other 2026 events