Update writeups 🚀

src/content/writeups/amateursctf/2024/web/agile-rut.md

@@ -3,7 +3,34 @@ title: "agile-rut"
 description: "check out this cool font i made!"
 points: 173
 solves: 311
-author: nobody
+author: Jozef Steinhübl
+date: April 11 2024
 ---
 
-yeh' agile-rut.... it was hard lol
+## Introduction
+
+![task](https://raw.githubusercontent.com/GerlachSnezka/amateursctf/main/assets/2024-web-agile-rut.png)
+
+There's a website with textarea and custom font. We have to inspect the font and find the flag.
+
+## Solution
+
+After downloading the font, we can drop it into [FontDrop](https://fontdrop.info/) to inspect it. In the `glyphs` tab, we can see a glyph with the very unusual name `lig.j.u.s.t.a.n.a.m.e.o.k.xxxxxxxxx.xxxx.x.xxxxxxxxxx.x.x.x.xxxxxxxxxx.xxx.xxxxxxxxxx.x.x.x.x.xxxxxxxxxx.x.x.x.x.xxxxxxxxxx.x.x.x.xxxxxxxxxx.x.x.x.x.x.xxxx.xxxxxxxxxx.xxxxx.xxxxx.xxxxx.xxxxxxxxxx`.
+
+![glyph](https://raw.githubusercontent.com/GerlachSnezka/amateursctf/main/assets/2024-web-agile-rut-glyph.png)
+
+![glyph info](https://raw.githubusercontent.com/GerlachSnezka/amateursctf/main/assets/2024-web-agile-rut-glyph-info.png)
+
+In an earlier version of the font the glyph was named `lig.a.m.a.t.e.u.r.s.C.T.F.braceleft.zero.k.underscore.b.u.t.underscore.one.underscore.d.o.n.t.underscore.l.i.k.e.underscore.t.h.e.underscore.j.b.m.o.n.zero.underscore.equal.equal.equal.braceright` which can be translated to `amateursCTF{0k_but_1_dont_like_the_jbmon0_===}`. It didn't work anyway.
+
+After inspecting using another service, called [GlyphrStudio](https://www.glyphrstudio.com/app/), we can see that there's a ligature with the same "icon".
+
+![glyphrstudio ligatures](https://raw.githubusercontent.com/GerlachSnezka/amateursctf/main/assets/2024-web-agile-rut-glyphrstudio-ligatures.png)
+
+![glyphrstudio ligature](2024-web-agile-rut-glyphrstudio-ligature.png)
+
+Using dev tools we can copy the ligature name and we'll get the flag:
+
+```
+amateursctf{0k_but_1_dont_like_the_jbmon0_===}
+```