Differences

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--- challenges-anssi-ecsc-pwn-armory [2019/05/16 13:31] – created didzkovitchz
+++ challenges-anssi-ecsc-pwn-armory [2020/12/15 21:12] (current) – removed didzkovitchz
@@ Line 1: / Line 1: @@
-====== ANSSI ECSC ~~ Challenges pwn ~~ Armory ======
-[[anssi-ecsc|Retour]]
-===== Présentation =====
-Saurez-vous exploiter le binaire fourni et extraire le flag ?
-nc challenges.ecsc-teamfrance.fr 4003
-+ fichier armory sans extension
-===== 1 - file =====
-''file armory''
-<code>
-armory: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.3, for GNU/Linux 3.2.0, BuildID[sha1]=aaa2d5ba6d3a6cf3958eb9073e673795c2f1e24e, not stripped
-</code>
-===== 2 - gdb =====
-Comme on peut s'y attendre, s'agissant d'un fichier ARM, impossible de le lancer sur x86_64.
-''gdb ./armory''
-<code>
-GNU gdb (Debian 8.2.1-2) 8.2.1
-Copyright (C) 2018 Free Software Foundation, Inc.
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
-This is free software: you are free to change and redistribute it.
-There is NO WARRANTY, to the extent permitted by law.
-Type "show copying" and "show warranty" for details.
-This GDB was configured as "x86_64-linux-gnu".
-Type "show configuration" for configuration details.
-For bug reporting instructions, please see:
-<http://www.gnu.org/software/gdb/bugs/>.
-Find the GDB manual and other documentation resources online at:
-    <http://www.gnu.org/software/gdb/documentation/>.
-For help, type "help".
-Type "apropos word" to search for commands related to "word"...
-Reading symbols from ./armory...(no debugging symbols found)...done.
-(gdb) r
-Starting program: /mnt/c/Users/didier/Documents/ANSSI-ECSC/armory
-/bin/bash: /mnt/c/Users/didier/Documents/ANSSI-ECSC/armory: cannot execute binary file: Exec format error
-/bin/bash: /mnt/c/Users/didier/Documents/ANSSI-ECSC/armory: Success
-During startup program exited with code 126.
-(gdb) q
-</code>
-===== 3 - qemu-user =====
-Article intéressant : [[https://ownyourbits.com/2018/06/13/transparently-running-binaries-from-any-architecture-in-linux-with-qemu-and-binfmt_misc/]]
-''qemu-arm armory''
-<code>
-/lib/ld-linux.so.3: No such file or directory
-</code>