Added TSGWeb lol

ret2jazzy · ret2jazzy · commit df3121e87617 · 2020-11-17T03:20:17.000-08:00
diff --git a/2020/tsgctf-2020/beginners_web/README.md b/2020/tsgctf-2020/beginners_web/README.md
@@ -0,0 +1,3 @@
+# Beginners web
+
+The trick here that we controlled `request.body.converter`, so we could do `__defineSetter__`` on `converters` with your sessionID as the first parameter, and the object which would then be resolved as a promise?? The next we set flagConverted on it with our sessionID, the promise gets resolved, some error gets printed and we get the flag. 

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+# Beginners web`
	`2`	`+`
	`3`	+The trick here that we controlled `request.body.converter`, so we could do `__defineSetter__`` on `converters` with your sessionID as the first parameter, and the object which would then be resolved as a promise?? The next we set flagConverted on it with our sessionID, the promise gets resolved, some error gets printed and we get the flag.