IRSInternalCTF 2020
21 challenges with 23 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised16
The upstream scoreboard did not say, so neither do we.
Enc Writeups
3 official solutionsAlso written up in: IRS-Cybersec/ctfdump, IRS-Cybersec/ctfdump, IRS-Cybersec/ctfdump
Admin at work
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Big Brother Secrets
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Cells at work
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Dynamic Library
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Fluffy 2.5
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Fluffy I
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Fluffy II
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Fluffy III
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
IRS Internal CTF A Bird in the Hand [300 Points]
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Supreme PDF Hoster
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Also written up in: IRS-Cybersec/ctfdump
The C of CP
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Also written up in: IRS-Cybersec/ctfdump
TVOIT
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Xtreme Static Sites
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Steganography5
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
Special Stego I 3D Room
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Special Stego II Picturesque Mountains
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Special Stego III A Child's Drawing
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Special Stego III A Child's Drawing Various
1 official solutionAlso written up in: IRS-Cybersec/ctfdump
Special Stego IV Sunset and Mountains
1 official solutionAlso written up in: IRS-Cybersec/ctfdump