'); DROP TABLE USERS; --

Solves

Challenge	Category	Value	Time
open-window-2	re/basics	25
mail-server4	linux/hard	100
Spooky Server 4	linux/hard	100
Spooky Server 3	linux/medium	75
esc-server5	linux/hard	100
esc-server4	linux/medium	75
Neural Networking 5	linux/hard	100
protocol-manipulation	web/easy	50
confession	web/easy	50
dishonesty1	for/basics	25
redacted1	for/basics	25
booksnflags	web/easy	50
UnderLeaf	web/medium	75
Neural Networking 4.5	linux/hard	100
Neural Networking 4	linux/medium	75
Neural Networking 0	linux/basics	25
esc-server3	linux/medium	75
esc-server2	linux/easy	50
mail-server2	linux/easy	50
imperial	crypto/basics	25
cookie-wookie	web/easy	50
baseic	misc/basics	25
mail-server3	linux/medium	75
mail-server1	linux/basics	25
mail-server0	linux/basics	25
esc-server0	linux/basics	25
esc-server1	linux/basics	25
Neural Networking 3	linux/medium	75
Neural Networking 2	linux/easy	50
Spooky Server 1	linux/easy	50
Spooky Server 2	linux/easy	50
turning-japanese	misc/basics	25
netcat	misc/basics	25
siden00b	web/basics	25
ciao	web/basics	25
overwrite-me-too	pwn/easy	50
overwrite-me	pwn/easy	50
Spooky Server 0	linux/easy	50
cryptolads1	misc/medium	75
Ret2Win	pwn/medium	75
good-client-bad-client	web/easy	50
cryptolads2	misc/hard	100
cryptolads1.5	misc/hard	100
scramble	misc/hard	100