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+Le repertoire de level14 est vide et aucun flag restant apparent... il ne reste plus qu'a regarder directement dans getflag :eyes:
+
+(Pour etre honnete je souhaiter faire ca pour tous les flags mais j'ai ete spoiler que c'etait le dernier niveau)
+
+En regardant le code ca ressemble a une foret de if else if
+
+En passant par le main j'obtiens ce message
+```asm
+(gdb) b main
+Breakpoint 1 at 0x804894a
+(gdb) r
+Starting program: /bin/getflag
+
+Breakpoint 1, 0x0804894a in main ()
+(gdb) c
+Continuing.
+You should not reverse this
+[Inferior 1 (process 2506) exited with code 01]
+```
+
+c'est ptrace qui nous empeche de faire ce que nous souhaitons
+```asm
+ 8048989:	e8 b2 fb ff ff       	call   8048540 <ptrace@plt>
+ 804898e:	85 c0                	test   eax,eax
+```
+
+J'ai donc pu le bypass il suffit d'aller a ptrace puis de mettre eax a 0 (afin qu'il pense que c'est une execution classique)
+```asm
+gdb /bin/getflag
+(gdb) b ptrace
+Breakpoint 1 at 0x8048540
+(gdb) r
+Starting program: /bin/getflag
+
+Breakpoint 1, 0xb7f146d0 in ptrace () from /lib/i386-linux-gnu/libc.so.6
+(gdb) n
+Single stepping until exit from function ptrace,
+which has no line number information.
+0x0804898e in main ()
+(gdb) set $eax=0
+(gdb) n
+Single stepping until exit from function main,
+which has no line number information.
+Check flag.Here is your token :
+Nope there is no token here for you sorry. Try again :)
+```
+
+Voici l'exploit complet avec le changement de la return value de getuid pour 3014 (soit d'apres /etc/passwd l'uid de flag14)
+```asm
+gdb /bin/getflag
+(gdb) b ptrace
+Breakpoint 1 at 0x8048540
+(gdb) b getuid
+Breakpoint 2 at 0x80484b0
+(gdb) r
+Starting program: /bin/getflag
+
+Breakpoint 1, 0xb7f146d0 in ptrace () from /lib/i386-linux-gnu/libc.so.6
+(gdb) n
+Single stepping until exit from function ptrace,
+which has no line number information.
+0x0804898e in main ()
+(gdb) set $eax=0
+(gdb) n
+Single stepping until exit from function main,
+which has no line number information.
+
+Breakpoint 2, 0xb7ee4cc0 in getuid () from /lib/i386-linux-gnu/libc.so.6
+(gdb) n
+Single stepping until exit from function getuid,
+which has no line number information.
+0x08048b02 in main ()
+(gdb) set $eax=0xBC6
+(gdb) n
+Single stepping until exit from function main,
+which has no line number information.
+Check flag.Here is your token : 7QiHafiNa3HVozsaXkawuYrTstxbpABHD8CPnHJ
+
+```