Differences

This shows you the differences between two versions of the page.

--- challenges-anssi-ecsc-reverse-ybab [2019/05/16 14:01] – didzkovitchz
+++ challenges-anssi-ecsc-reverse-ybab [2020/12/15 21:15] (current) – removed didzkovitchz
@@ Line 1: / Line 1: @@
-====== ANSSI ECSC ~~ Challenges reverse ~~ ybab ======
-[[anssi-ecsc|Retour]]
--) owned 8-)
-===== Présentation =====
-.semèlborp ed resop suov sap tiarved en egnellahc eC
-fichier baby sans extension
-''Nope, I won't give you the flag *that* easily!''
-===== 1 - strings =====
-''strings baby''
-<code>
-/lib64/ld-linux-x86-64.so.2
-libc.so.6
-exit
-puts
-printf
-__cxa_finalize
-__libc_start_main
-GLIBC_2.2.5
-_ITM_deregisterTMCloneTable
-__gmon_start__
-_ITM_registerTMCloneTable
-=g
-=j
-AWAVI
-AUATL
-[]A\A]A^A_
-ECSC{cdcd13c4c81a23a21506fa8efa5edff781e9fe80}
-The flag is %s.
-Nope, I won't give you the flag *that* easily!
-;*3$"
-GCC: (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
-/usr/lib/gcc/x86_64-linux-gnu/7/include
-/usr/include/x86_64-linux-gnu/bits
-/usr/include
-baby.c
-stddef.h
-types.h
-libio.h
-stdio.h
-sys_errlist.h
-__off_t
-_IO_read_ptr
-_chain
-/home/julien/ECSC/challenges/reverse/baby
-size_t
-_shortbuf
-GNU C11 7.3.0 -mtune=generic -march=x86-64 -g -fstack-protector-strong
-forever_alone
-_IO_2_1_stderr_
-_IO_buf_base
-long long unsigned int
-long long int
-_fileno
-_IO_read_end
-_flags
-_IO_buf_end
-_cur_column
-_old_offset
-_IO_marker
-stdin
-_IO_FILE_plus
-_IO_write_ptr
-sys_nerr
-_sbuf
-short unsigned int
-_IO_save_base
-_lock
-_flags2
-_mode
-stdout
-_IO_2_1_stdin_
-_IO_write_end
-_IO_lock_t
-_IO_FILE
-_pos
-sys_errlist
-_markers
-unsigned char
-short int
-flag
-_vtable_offset
-_IO_2_1_stdout_
-_next
-__off64_t
-_IO_read_base
-_IO_save_end
-__pad1
-__pad2
-__pad3
-__pad4
-__pad5
-_unused2
-stderr
-argv
-_IO_backup_base
-argc
-baby.c
-main
-_IO_write_base
-crtstuff.c
-deregister_tm_clones
-__do_global_dtors_aux
-completed.7696
-__do_global_dtors_aux_fini_array_entry
-frame_dummy
-__frame_dummy_init_array_entry
-baby.c
-__FRAME_END__
-__init_array_end
-_DYNAMIC
-__init_array_start
-__GNU_EH_FRAME_HDR
-_GLOBAL_OFFSET_TABLE_
-__libc_csu_fini
-_ITM_deregisterTMCloneTable
-puts@@GLIBC_2.2.5
-forever_alone
-_edata
-printf@@GLIBC_2.2.5
-__libc_start_main@@GLIBC_2.2.5
-__data_start
-__gmon_start__
-__dso_handle
-_IO_stdin_used
-__libc_csu_init
-__bss_start
-main
-exit@@GLIBC_2.2.5
-__TMC_END__
-_ITM_registerTMCloneTable
-__cxa_finalize@@GLIBC_2.2.5
-.symtab
-.strtab
-.shstrtab
-.interp
-.note.ABI-tag
-.note.gnu.build-id
-.gnu.hash
-.dynsym
-.dynstr
-.gnu.version
-.gnu.version_r
-.rela.dyn
-.rela.plt
-.init
-.plt.got
-.text
-.fini
-.rodata
-.eh_frame_hdr
-.eh_frame
-.init_array
-.fini_array
-.dynamic
-.data
-.bss
-.comment
-.debug_aranges
-.debug_info
-.debug_abbrev
-.debug_line
-.debug_str
-</code>
-===== FLAG =====
-Bon bah le flag est inscrit dans l'output du strings, à savoir ''ECSC{cdcd13c4c81a23a21506fa8efa5edff781e9fe80}''.