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Exploitez le binaire fourni pour en extraire flag.
nc challenges.ecsc-teamfrance.fr 4005
file aarchibald
aarchibald: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, BuildID[sha1]=d8483190f176c46874dd383c62e36ee970712b09, not stripped
strings aarchibald
/lib/ld-linux-aarch64.so.1 pq+ libc.so.6 fflush strncmp puts abort stdin fgets system __cxa_finalize __libc_start_main __libc_csu_fini _ITM_deregisterTMCloneTable __gmon_start__ __libc_csu_init _Jv_RegisterClasses _ITM_registerTMCloneTable GLIBC_2.17 `bA9@ !h`8 "h 8 Please enter your password: eCfSDFwEeAYDr Welcome back! Entering debug mode /bin/dash Sorry, that's not the correct password. Bye. GCC: (Debian 6.3.0-18) 6.3.0 20170516 /usr/lib/gcc-cross/aarch64-linux-gnu/6/../../../../aarch64-linux-gnu/lib/../lib/Scrt1.o /usr/lib/gcc-cross/aarch64-linux-gnu/6/../../../../aarch64-linux-gnu/lib/../lib/crti.o call_weak_fn /usr/lib/gcc-cross/aarch64-linux-gnu/6/../../../../aarch64-linux-gnu/lib/../lib/crtn.o crtstuff.c __JCR_LIST__ deregister_tm_clones __do_global_dtors_aux completed.7433 __do_global_dtors_aux_fini_array_entry frame_dummy __frame_dummy_init_array_entry aarchibald.c elf-init.oS __FRAME_END__ __JCR_END__ __init_array_end _DYNAMIC __init_array_start _GLOBAL_OFFSET_TABLE_ __libc_csu_fini _ITM_deregisterTMCloneTable __bss_start__ __cxa_finalize@@GLIBC_2.17 _edata __bss_end__ strncmp@@GLIBC_2.17 __libc_start_main@@GLIBC_2.17 __data_start system@@GLIBC_2.17 stdin@@GLIBC_2.17 __gmon_start__ __dso_handle abort@@GLIBC_2.17 _IO_stdin_used puts@@GLIBC_2.17 __libc_csu_init __end__ __bss_start main fflush@@GLIBC_2.17 _Jv_RegisterClasses __TMC_END__ _ITM_registerTMCloneTable fgets@@GLIBC_2.17 .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 .text .fini .rodata .eh_frame .init_array .fini_array .jcr .dynamic .got .got.plt .data .bss .comment