admin@i-01938499a23dd6d8b:~$ curl http://localhost:5000                         Unauthorizedadmin@i-01938499a23dd6d8b:~$ curl https://localhost:5000            curl: (35) error:1408F10B:SSL routines:ssl3_get_record:wrong version number     admin@i-01938499a23dd6d8b:~$ strace -p 573                                      strace: attach: ptrace(PTRACE_SEIZE, 573): Operation not permitted              admin@i-01938499a23dd6d8b:~$ sudo strace -p 573                                                                                                                 We trust you have received the usual lecture from the local System              Administrator. It usually boils down to these three things:                                                                                                         #1) Respect the privacy of others.                                              #2) Think before you type.                                                      #3) With great power comes great responsibility.                                                                                                            [sudo] password for admin:                                                      

admin@i-0be5d169af42c0cb5:~$                                                    admin@i-0be5d169af42c0cb5:~$                                                    admin@i-0be5d169af42c0cb5:~$                                                    admin@i-0be5d169af42c0cb5:~$ localhost:5000                                     bash: localhost:5000: command not found                                         admin@i-0be5d169af42c0cb5:~$ curl localhost:5000                                Unauthorizedadmin@i-0be5d169af42c0cb5:~$ curl localhost:5000?                   Unauthorizedadmin@i-0be5d169af42c0cb5:~$ curl localhost:5000?/ls                Unauthorizedadmin@i-0be5d169af42c0cb5:~$ curl localhost:5000?/''                Unauthorizedadmin@i-0be5d169af42c0cb5:~$ curl localhost:5000?/\\ls              Unauthorizedadmin@i-0be5d169af42c0cb5:~$ curl localhost:5000?/                  

write(2, "main.main", 9main.main)                = 9         write(2, "(", 1()                        = 1                 write(2, ")\n", 2)                                           )                      = 2                                   write(2, "\t", 1        )                       = 1          write(2, "./main.go", 9./main.go)                = 9         write(2, ":", 1:)                        = 1                 write(2, "64", 264)                       = 2                write(2, " +", 2 +)                       = 2                write(2, "0x47d", 50x47d)                    = 5             write(2, "\n", 1                                             )                       = 1                                  exit_group(2)                           = ?                  +++ exited with 2 +++                                        admin@i-0f74c319172ce7b15:~$ strace ./kihei                  

*flag.int64Value,flag.Valuego.itab.*flag.stringValue,flag.Valuego.itab.*flag.uin*flag.uint64Value,flag.Valuego.itab.*strings.Builder,io.Writergo.itab.*errors.ermt.wrapError,errorgo.itab.*fmt.pp,fmt.Statego.itab.*os.File,io.Readergo.itab.systab.*io/fs.PathError,errorgo.itab.*os.SyscallError,errorgo.itab.syscall.Errno,erio.Writergo.itab.*os.fileStat,io/fs.FileInfogo.itab.*io.LimitedReader,io.Readerggo.itab.*os/exec.ExitError,errorgo.itab.*os/exec.Error,errorgo.itab.*bufio.Reader.UnknownUserIdError,errorgo.itab.*internal/reflectlite.rtype,internal/reflectliizeError,errorgo.itab.*internal/fmtsort.SortedMap,sort.Interfacego.itab.runtime.t_cgo_thread_start_cgo_notify_runtime_init_done_cgo_callers_cgo_yield_cgo_mmap_cntime.mainPCgo.itab.*internal/poll.DeadlineExceededError,errorgo.itab.internal/pntime.defaultGOROOT.strruntime.buildVersion.strruntime.modinfo.strtype.*runtime.7ca6b7f6d7f0fe:~$ ^C                                                            admin@i-08b7ca6b7f6d7f0fe:~$ ^C                                                 admin@i-08b7ca6b7f6d7f0fe:~$ ^C                                                 admin@i-08b7ca6b7f6d7f0fe:~$