If we get all printable inside the executable by using the strings command and ignore all symbol and compiler metadata what is left is:
Enter password:
FEDORAGCIPASSEASY
Success!
Error! Wrong password!
0x1337
0x133337
we can ignore Enter password:, Success! and Error! Wrong password! since they are probabaly use for printing the messages
so the passwords are:
FEDORAGCIPASSEASY
0x1337
0x133337
main symbol disassembled:
0000000000001165 <main>:
1165: 55 push %rbp
1166: 48 89 e5 mov %rsp,%rbp
1169: 48 83 ec 20 sub $0x20,%rsp
116d: 89 7d ec mov %edi,-0x14(%rbp)
1170: 48 89 75 e0 mov %rsi,-0x20(%rbp)
1174: 48 b8 46 45 64 30 72 movabs $0x4347617230644546,%rax
117b: 61 47 43
117e: 48 89 45 f2 mov %rax,-0xe(%rbp)
1182: c7 45 fa 49 74 40 73 movl $0x73407449,-0x6(%rbp)
1189: 66 c7 45 fe 6b 00 movw $0x6b,-0x2(%rbp)
118f: 83 7d ec 02 cmpl $0x2,-0x14(%rbp)
1193: 74 25 je 11ba <main+0x55>
1195: 48 8b 45 e0 mov -0x20(%rbp),%rax
1199: 48 8b 00 mov (%rax),%rax
119c: 48 89 c6 mov %rax,%rsi
119f: 48 8d 3d 5e 0e 00 00 lea 0xe5e(%rip),%rdi # 2004 <_IO_stdin_used+0x4>
11a6: b8 00 00 00 00 mov $0x0,%eax
11ab: e8 90 fe ff ff callq 1040 <printf@plt>
11b0: bf 01 00 00 00 mov $0x1,%edi
11b5: e8 a6 fe ff ff callq 1060 <exit@plt>
11ba: 48 8b 45 e0 mov -0x20(%rbp),%rax
11be: 48 83 c0 08 add $0x8,%rax
11c2: 48 8b 00 mov (%rax),%rax
11c5: 48 8d 55 f2 lea -0xe(%rbp),%rdx
11c9: 48 89 d6 mov %rdx,%rsi
11cc: 48 89 c7 mov %rax,%rdi
11cf: e8 7c fe ff ff callq 1050 <strcmp@plt>
11d4: 85 c0 test %eax,%eax
11d6: 75 0e jne 11e6 <main+0x81>
11d8: 48 8d 3d 3b 0e 00 00 lea 0xe3b(%rip),%rdi # 201a <_IO_stdin_used+0x1a>
11df: e8 4c fe ff ff callq 1030 <puts@plt>
11e4: eb 0c jmp 11f2 <main+0x8d>
11e6: 48 8d 3d 36 0e 00 00 lea 0xe36(%rip),%rdi # 2023 <_IO_stdin_used+0x23>
11ed: e8 3e fe ff ff callq 1030 <puts@plt>
11f2: b8 00 00 00 00 mov $0x0,%eax
11f7: c9 leaveq
11f8: c3 retq
11f9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
Explanation of important instructions (format is "instruction address: explanation"):
1174: put the data 0x4347617230644546 (FEd0raGC) to register rax
117e: copy data from rax register to a address 0xe (14) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|F|E|d|0|r|a|G|C| | | | | | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
1182: put the data 0x73407449 (It@s) at 0x6 (6) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|F|E|d|0|r|a|G|C|I|t|@|s| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
1189: put the data 0x6b (k) at 0x2 (2) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|F|E|d|0|r|a|G|C|I|t|@|s|k| | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
11cf: compare value at 0xe (14) before rbp and user input
so password is FEd0raGCIt@sk
main symbol disassembled:
00000000000011a7 <main>:
11a7: 55 push %rbp
11a8: 48 89 e5 mov %rsp,%rbp
11ab: 48 83 ec 40 sub $0x40,%rsp
11af: 48 b8 30 30 67 36 31 movabs $0x306b403136673030,%rax
11b6: 40 6b 30
11b9: 48 ba 30 6c 61 6e 64 movabs $0x313531646e616c30,%rdx
11c0: 31 35 31
11c3: 48 89 45 e0 mov %rax,-0x20(%rbp)
11c7: 48 89 55 e8 mov %rdx,-0x18(%rbp)
11cb: c7 45 f0 34 63 65 6c movl $0x6c656334,-0x10(%rbp)
11d2: 66 c7 45 f4 21 00 movw $0x21,-0xc(%rbp)
11d8: c7 45 fc 00 00 00 00 movl $0x0,-0x4(%rbp)
11df: 48 8d 3d 76 0e 00 00 lea 0xe76(%rip),%rdi # 205c <_IO_stdin_used+0x5c>
11e6: b8 00 00 00 00 mov $0x0,%eax
11eb: e8 50 fe ff ff callq 1040 <printf@plt>
11f0: 48 8d 45 c0 lea -0x40(%rbp),%rax
11f4: 48 89 c7 mov %rax,%rdi
11f7: b8 00 00 00 00 mov $0x0,%eax
11fc: e8 5f fe ff ff callq 1060 <gets@plt>
1201: 48 8d 4d e0 lea -0x20(%rbp),%rcx
1205: 48 8d 45 c0 lea -0x40(%rbp),%rax
1209: ba 16 00 00 00 mov $0x16,%edx
120e: 48 89 ce mov %rcx,%rsi
1211: 48 89 c7 mov %rax,%rdi
1214: e8 37 fe ff ff callq 1050 <memcmp@plt>
1219: 85 c0 test %eax,%eax
121b: 75 07 jne 1224 <main+0x7d>
121d: c7 45 fc 01 00 00 00 movl $0x1,-0x4(%rbp)
1224: 48 8d 3d 46 0e 00 00 lea 0xe46(%rip),%rdi # 2071 <_IO_stdin_used+0x71>
122b: e8 00 fe ff ff callq 1030 <puts@plt>
1230: 83 7d fc 00 cmpl $0x0,-0x4(%rbp)
1234: 74 16 je 124c <main+0xa5>
1236: 48 8d 3d 4b 0e 00 00 lea 0xe4b(%rip),%rdi # 2088 <_IO_stdin_used+0x88>
123d: e8 ee fd ff ff callq 1030 <puts@plt>
1242: bf 00 00 00 00 mov $0x0,%edi
1247: e8 24 fe ff ff callq 1070 <exit@plt>
124c: 48 8d 3d 57 0e 00 00 lea 0xe57(%rip),%rdi # 20aa <_IO_stdin_used+0xaa>
1253: e8 d8 fd ff ff callq 1030 <puts@plt>
1258: b8 00 00 00 00 mov $0x0,%eax
125d: c9 leaveq
125e: c3 retq
125f: 90 nop
Explanation of important instructions (format is "instruction address: explanation"):
11af: put the data 0x306b403136673030 (00g61@k0) into rax
11b9: put the data 0x313531646e616c30 (0land151) into rdx
11c3: copy data from rax to 0x20 (32) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|0|g|6|1|@|k|0| | | | | | | | | | | | | | | | | | | | | | | | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
11c7: copy data from rdx to 0x18 (24) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|0|g|6|1|@|k|0|0|l|a|n|d|1|5|1| | | | | | | | | | | | | | | | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
11cb: put the data 0x6c656334 (4cel) at 0x10 (16) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|0|g|6|1|@|k|0|0|l|a|n|d|1|5|1|4|c|e|l| | | | | | | | | | | | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
11d2: put the data 0x21 (!) at 0xc (12) before rbp
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0|0|g|6|1|@|k|0|0|l|a|n|d|1|5|1|4|c|e|l|!| | | | | | | | | | | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
^
rbp
1214: compare value at 0x20 (32) before rbp and user input
so password is 00g61@k00land1514cel!
Note: Since the password and user input are side by side we can input a 64 char strings to overflow and login so abcdefghijklmnopqrstuvwxyz123456abcdefghijklmnopqrstuvwxyz123456 will work