Information#
Version#
| By | Version | Comment |
|---|---|---|
| noraj | 1.0 | Creation |
CTF#
- Name : ASIS CTF Quals 2017
- Website : asis-ctf.ir
- Type : Online
- Format : Jeopardy
- CTF Time : link
1 - Welcome - Trivia#
What is the smallest valid flag for ASIS CTF?
ASIS{}
19 - our weird OS! - Trivia#
Once upon a time we could have files with the exactly same name in our OS! Submit the flag like ASIS{OS_name}.
Source: Wikipedia List of file systems - Apple Lisa
LisaFS - Filesystem used by Apple Lisa's operating system. Unique in that it allowed two different files with exactly same name ("foo" and "foo").
Source: macworld
Amazingly, Lisa OS is one of the only operating systems in history (if not the only one; research pending) to allow duplicate file names. Each file was assigned a physical file name that represented the file on the disk, and a virtual file name provided by the user that showed up in the Lisa interface.
Flag: ASIS{Lisa} (should have been ASIS{Lisa_OS})