UIUCTF 2021 All Writeups
For UIUCTF 2021 we paid out $2,000 in writeup prizes. We were inspired by GoogleCTF’s writeup prizes. We prioritize concise technical communication and writeups that are fun to read and learn from, including those written from/for the perspective of beginners. Here is the full writeup list.
| Challenge | Author |
|---|---|
| baby_python | Infintesky - Social Engineering Experts |
| baby_python | natem135 - IrisSec |
| baby_python | MasterWard - N1ghth4wks |
| baby_python | leader - FF9 |
| baby_python_fixed | Infintesky - Social Engineering Experts |
| baby_python_fixed | Eth007 - TeamlessCTF |
| baby_python_fixed | Legoclones - BYU Cyberia |
| baby_python_fixed | magnum - magnum |
| baby_python_fixed | vwfhoqufqijnof - IrisSec |
| baby_python_fixed | Leader - FF9 |
| baby_python_fixed | purple - idek |
| back_to_basics | zeyu2001 - Social Engineering Experts |
| back_to_basics | MasterWard - N1ghth4wks |
| beyond_root | magnum - magnum |
| buy_buy_buy | RJCyber - wackers |
| buy_buy_buy | zeyu2001 - Social Engineering Experts |
| buy_buy_buy | FIREPONY57 - TeamlessCTF |
| buy_buy_buy | CultOfNull - CultOfNull |
| capture the :flag: | zeyu2001 - Social Engineering Experts |
| capture the :flag: | skat - IrisSec |
| CEO | Sleipner - R49n4r0k |
| CEO | Louis - SoloQ |
| CEO | ComdeyOverflow - ComdeyOverflow |
| CEO | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 1 | niche - niche |
| Chaplin’s PR Nightmare - 1 | ohcoz - BYU Cyberia |
| Chaplin’s PR Nightmare - 1 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 1 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 1 | Leader - FF9 |
| Chaplin’s PR Nightmare - 2 | niche - niche |
| Chaplin’s PR Nightmare - 2 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 2 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 2 | Leader - FF9 |
| Chaplin’s PR Nightmare - 2 | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 3 | niche - niche |
| Chaplin’s PR Nightmare - 3 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 3 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 3 | Leader - FF9 |
| Chaplin’s PR Nightmare - 3 | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 4 | niche - niche |
| Chaplin’s PR Nightmare - 4 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 4 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 4 | Leader - FF9 |
| Chaplin’s PR Nightmare - 4 | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 5 | niche - niche |
| Chaplin’s PR Nightmare - 5 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 5 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 5 | Leadeer - FF9 |
| Chaplin’s PR Nightmare - 5 | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 6 | niche - niche |
| Chaplin’s PR Nightmare - 6 | RJCyber - wackers |
| Chaplin’s PR Nightmare - 6 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 6 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 6 | Leader - FF9 |
| Chaplin’s PR Nightmare - 7 | niche - niche |
| Chaplin’s PR Nightmare - 7 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 7 | Leader - FF9 |
| Chaplin’s PR Nightmare - 7 | FIREPONY57 - TeamlessCTF |
| Chaplin’s PR Nightmare - 7 | CultOfNull - CultOfNull |
| Chaplin’s PR Nightmare - 8 | niche - niche |
| Chaplin’s PR Nightmare - 8 | RJCyber - wackers |
| Chaplin’s PR Nightmare - 8 | Legoclones - BYU Cyberia |
| Chaplin’s PR Nightmare - 8 | lim_yj - Social Engineering Experts |
| Chaplin’s PR Nightmare - 8 | Leader - FF9 |
| Chaplin’s PR Nightmare - 8 | purple - idek |
| Chaplin’s PR Nightmare - 8 | benlambertbenlambertbenlambert - ohm |
| Constructive Criticism | Blupper - thehackerscrew |
| Constructive Criticism | 0b3t - BYU Cyberia |
| Constructive Criticism | Polymero - K3RN3L4RMY |
| dhke_adventure | Necron3574 - Cryptonite |
| doot doot | Legoclones - BYU Cyberia |
| doot doot | CultOfNull - CultOfNull |
| emote | Sleipner - R49n4r0k |
| emote | Legoclones - BYU Cyberia |
| emote | bob123 - Social Engineering Experts |
| emote | CultofNull - CultofNull |
| Feedback Survey | BasmatiRice - RiceGang |
| Feedback Survey | RJCyber - wackers |
| Feedback Survey | FIREPONY57 - TeamlessCTF |
| gatekeeping | AliceNCsyuk - TTT-team |
| gatekeeping | vwfhoqufqijnof - IrisSec |
| gatekeeping | CSN3RD - CSN3RD |
| Gonnegtions | nobodyisnobody - RootMeUpBeforeYouGoGo |
| hvhpgs{synt} | RJCyber - wackers |
| hvhpgs{synt} | Fawl - Social Engineering Experts |
| insecure_seccomp | volticks - Zh3r0 |
| Join our Discord | RJCyber - wackers |
| miniaturehorsedb | Reaver - 5h0rt |
| OSINT The Creator | Niasio - MuskHave |
| OSINT The Creator | niche - niche |
| OSINT The Creator | RJCyber - wackers |
| OSINT The Creator | Seabass - Social Engineering Experts |
| OSINT The Creator | CultOfNull - CultOfNull |
| OSINT The Creator 2 | niche - niche |
| OSINT The Creator 2 | RJCyber - wackers |
| OSINT The Creator 2 | CultOfNull - CultOfNull |
| pawnfish | PwN_3v3rY7h1nG - PwN_3v3rY7h1nG |
| phpfuck | Sleipner - R49n4r0k |
| phpfuck | ComdeyOverflow - ComdeyOverflow |
| phpfuck | Legoclones - BYU Cyberia |
| phpfuck | Infintesky - Social Engineering Experts |
| phpfuck | MasterWard - N1ghth4wks |
| phpfuck | vwfhoqufqijnof - IrisSec |
| phpfuck | Leader - FF9 |
| phpfuck_fixed | face0xff - ECSC Team France |
| phpfuck_fixed | ch13 - ohm |
| phpfuck_fixed | Mystiz - Black Bauhinia |
| phpfuck_fixed | vwfhoqufqijnof - IrisSec |
| plugin | not_really - IrisSec |
| ponydb | Reaver - 5h0rt |
| ponydb | zeyu2001 - Social Engineering Experts |
| pow_erful | zeyu2001, TheMythologist, Angmar (me), Fawl, rainbowpigeon, seabass, lim_yj - Social Engineering Experts |
| Pwn Warmup | Eth007 - TeamlessCTF |
| Pwn Warmup | whoamiT - 0nlyFlags |
| Pwn Warmup | downbtn - down_button |
| pwnies_please | zeyu2001 - Social Engineering Experts |
| pwnies_please | vwfhoqufqijnof - IrisSec |
| pwnies_please | stackdynamic - ohm |
| pwnies_please | 0b3t - BYU Cyberia |
| PwnyOS Zero Day Part 1 | BrownRice - RiceGang |
| PwnyOS Zero Day Part 2 | BrownRice - RiceGang |
| PwnyOS: Hidden Hard Drive | BrownRice - RiceGang |
| Q-Rious Transmissions | zeyu2001 - Social Engineering Experts |
| Q-Rious Transmissions | loulous - ECSC Team France |
| Q-Rious Transmissions | Polymero - K3RN3L4RMY |
| ropfuscated | redoste - ECSC Team France |
| ropfuscated | None - None |
| Seabass | Seabass - Social Engineering Experts |
| should’ve had a v8 | Sieberrsec - Sieberrsec |
| should’ve had a v8 | whoamiT - 0nlyFlags |
| signals | DaBaddest - Red Knights |
| signals | bob123 - Social Engineering Experts |
| signals | nobodyisnobody - RootMeUpBeforeYouGoGo |
| smorga’s bored | Yir - ECSC Team France |
| smorga’s bored | not_really - IrisSec |
| speakeasy | not_really - IrisSec |
| speakeasy | Reverse engineer - ARESx |
| SUPER | Louis - SoloQ |
| SUPER | zeyu2001 - Social Engineering Experts |
| SUPER | skat - IrisSec |
| SUPER | Eth007 - TeamlessCTF |
| Tablet 1 | Legoclones - BYU Cyberia |
| Tablet 1 | Seabass - Social Engineering Experts |
| Tablet 1 | skat - IrisSec |
| Tablet 2 | Captain - MuddySports |
| Tablet 2 | Seabass - Social Engineering Experts |
| Tablet 2 | Legoclones - BYU Cyberia |
| Tablet 2 | skat - IrisSec |
| Tedious | Blupper - thehackerscrew |
| Tedious | Legoclones - BYU Cyberia |
| Tedious | Fawl - Social Engineering Experts |
| toobeetootee | Louis - SoloQ |
| toobeetootee | asssss - aaasss |
| toobeetootee | Eth007 - TeamlessCTF |
| Twitch Plays PwnyOS | BrownRice - RiceGang |
| vaudeville | PwN_3v3rY7h1nG - PwN_3v3rY7h1nG |
| wasmbaby | Sleipner - R49n4r0k |
| wasmbaby | Legoclones - BYU Cyberia |
| wasmbaby | ComdeyOverflow - ComdeyOverflow |
| wasmbaby | CultOfNull - CultOfNull |
| wasmcloud | vwfhoqufqijnof - IrisSec |
| Welcome to UIUCTF’21 | RJCyber - wackers |
| Welcome to UIUCTF’21 | Fawl - Social Engineering Experts |
| Welcome to UIUCTF’21 | test - test |
| yana | Neptunian - FireShell (played solo as “Neptunians” this time) |
| yana | zeyu2001 - Social Engineering Experts |
| yana | zkldi - IrisSec |