135 lines
5.7 KiB
Plaintext
135 lines
5.7 KiB
Plaintext
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$ r2 sweep 2345ms
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-- I did it for the pwnz.
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[0x08049050]> iI
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arch x86
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baddr 0x8048000
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binsz 14345
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bintype elf
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bits 32
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canary false
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class ELF32
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compiler GCC: (GNU) 9.1.0
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crypto false
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endian little
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havecode true
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intrp /lib/ld-linux.so.2
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laddr 0x0
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lang c
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linenum true
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lsyms true
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machine Intel 80386
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maxopsz 16
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minopsz 1
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nx false
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os linux
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pcalign 0
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pic false
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relocs true
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relro partial
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rpath NONE
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sanitiz false
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static false
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stripped false
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subsys linux
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va true
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[0x08049050]> aa
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[x] Analyze all flags starting with sym. and entry0 (aa)
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[0x08049050]> afi main
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#
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offset: 0x08049166
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name: main
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size: 140
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is-pure: false
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realsz: 137
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stackframe: 24
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call-convention: cdecl
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cyclomatic-cost : 52
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cyclomatic-complexity: 2
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bits: 32
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type: sym [NEW]
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num-bbs: 7
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edges: 7
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end-bbs: 1
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call-refs: 0x08049187 J 0x080491d7 J 0x080491d2 J 0x080491e1 J
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data-refs: 0x0804c040
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code-xrefs: 0x08049184 J 0x080491cf J 0x0804918f J 0x080491de J
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in-degree: 4
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out-degree: 0
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data-xrefs: 0x0804907a 0x08049080
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locals: 5
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args: 0
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var int32_t var_4h @ ebp-0x4
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var int32_t var_5h @ esp+0x5
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var int32_t var_9h @ esp+0x9
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var int32_t var_bh @ esp+0xb
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var int32_t var_ch @ esp+0xc
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diff: type: new
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[0x08049050]> af- main
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[0x08049050]> pD 137@main
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;-- main:
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0x08049166 55 push ebp
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0x08049167 89e5 mov ebp, esp
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0x08049169 53 push ebx
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0x0804916a 83e4f0 and esp, 0xfffffff0
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0x0804916d 83ec10 sub esp, 0x10
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0x08049170 c74424050aff0dee mov dword [esp + 5], 0xee0dff0a
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0x08049178 66c74424098903 mov word [esp + 9], 0x389
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0x0804917f c644240b00 mov byte [esp + 0xb], 0
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,=< 0x08049184 eb01 jmp 0x8049187
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| 0x08049186 d3c7 rol edi, cl
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0x08049188 44 inc esp
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0x08049189 240c and al, 0xc
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0x0804918b 0000 add byte [eax], al
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0x0804918d 0000 add byte [eax], al
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,=< 0x0804918f eb46 jmp 0x80491d7
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.--> 0x08049191 8b44240c mov eax, dword [esp + 0xc]
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:| 0x08049195 0540c00408 add eax, 0x804c040
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:| 0x0804919a 0fb618 movzx ebx, byte [eax]
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:| 0x0804919d 8b4c240c mov ecx, dword [esp + 0xc]
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:| 0x080491a1 baabaaaa2a mov edx, 0x2aaaaaab
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:| 0x080491a6 89c8 mov eax, ecx
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:| 0x080491a8 f7ea imul edx
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:| 0x080491aa 89c8 mov eax, ecx
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:| 0x080491ac c1f81f sar eax, 0x1f
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:| 0x080491af 29c2 sub edx, eax
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:| 0x080491b1 89d0 mov eax, edx
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:| 0x080491b3 01c0 add eax, eax
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:| 0x080491b5 01d0 add eax, edx
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:| 0x080491b7 01c0 add eax, eax
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:| 0x080491b9 29c1 sub ecx, eax
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:| 0x080491bb 89ca mov edx, ecx
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:| 0x080491bd 0fb6541405 movzx edx, byte [esp + edx + 5]
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:| 0x080491c2 8b44240c mov eax, dword [esp + 0xc]
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:| 0x080491c6 0540c00408 add eax, 0x804c040
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:| 0x080491cb 31da xor edx, ebx
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:| 0x080491cd 8810 mov byte [eax], dl
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,===< 0x080491cf eb01 jmp 0x80491d2
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|:| 0x080491d1 a18344240c mov eax, dword [0xc244483]
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:| 0x080491d6 01837c240c51 add dword [ebx + 0x510c247c], eax
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`==< 0x080491dc 7eb3 jle 0x8049191
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,=< 0x080491de eb01 jmp 0x80491e1
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| 0x080491e0 68b840c004 push 0x4c040b8
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0x080491e5 08ff or bh, bh
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0x080491e7 d0b800000000 sar byte [eax], 1
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0x080491ed 8b invalid
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0x080491ee 5d pop ebp
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[0x08049050]> px 256@0x804c000
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- offset - 0 1 2 3 4 5 6 7 8 9 A B C D E F 0123456789ABCDEF
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0x0804c000 0cbf 0408 0000 0000 0000 0000 4690 0408 ............F...
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0x0804c010 0000 0000 0000 0000 0000 0000 0000 0000 ................
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0x0804c020 0000 0000 0000 0000 0000 0000 0000 0000 ................
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0x0804c030 0000 0000 0000 0000 0000 0000 0000 0000 ................
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0x0804c040 e1da 3c27 3825 50ad 8ddc be41 e805 3c2e ..<'8%P....A..<.
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0x0804c050 3907 3b24 beef d032 d84d 2b23 0932 ca4f 9.;$...2.M+#.2.O
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0x0804c060 0cdf 52b0 0b32 8d06 5ffc f500 52b0 ca56 ..R..2.._...R..V
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0x0804c070 46ad 5eeb 8600 0bfa 08eb 8602 0efd 09bf F.^.............
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0x0804c080 8f01 0eac 08bd 890d 5cfc 0cba 8a57 09fe ........\....W..
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0x0804c090 0ea4 0000 ffff ffff ffff ffff ffff ffff ................
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0x0804c0a0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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0x0804c0b0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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0x0804c0c0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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0x0804c0d0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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0x0804c0e0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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0x0804c0f0 ffff ffff ffff ffff ffff ffff ffff ffff ................
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[0x08049050]>
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