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dongdigua
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- collections add `wow` tag - binary_exploit opti link - add magical_index icon
74 lines
1.7 KiB
Org Mode
74 lines
1.7 KiB
Org Mode
#+TITLE: Binary Exploit Resources I Recently Trying to Learn
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#+DATE: <2022-06-29 三>
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#+TAGS: relearn(r)
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#+OPTIONS: toc:nil
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* resources
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** video
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[[https://youtube.com/playlist?list=PLhixgUqwRTjxglIswKp9mpkfPNfHkzyeN][Binary Exploitation / Memory Corruption by LiveOverflow]]
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** website
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*** [[https://play.picoctf.org/practice][picoCTF]]
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*** [[https://exploit.education/][exploit education]]
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* tools
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** code auditing
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[[./../images/fedora_security_lab.png]]
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*** pscan
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*** rats
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*** splint
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*** flawfinder
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** debug
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*** gdb
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** reverse
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*** [[https://book.rada.re/][radare2]]
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**** iaito
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*** hopper(non-free)
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* notes on video
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** [[https://youtu.be/6jSKldt7Eqs][0x04: asm basics]]
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*** to show assembly in the source code window in gud, ~M-x gdb-display-disassembly-buffer~
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*** links
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**** https://microcorruption.com/
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** [[https://youtu.be/3NTXFUxcKPc][0x06: tools]]
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*** simple tools
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**** hexdump
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**** strings
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all printable letters
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**** objdump
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disassembler
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**** strace/ltrace
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trace sys/lib call
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*** [[https://youtu.be/mT1V7IL2FHY][0x0A: deal with numbers]]
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**** endian?
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from [[https://zh.wikipedia.org/zh-cn/字节序][Wikipedia]]
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[[https://upload.wikimedia.org/wikipedia/commons/5/54/Big-Endian.svg]]
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[[https://upload.wikimedia.org/wikipedia/commons/e/ed/Little-Endian.svg]]
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x86 is little endian
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**** tools
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***** python
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#+BEGIN_SRC python
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>>> int('111', 2)
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7
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>>> hex(123)
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'0x7b'
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>>> import struct
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# https://docs.python.org/3.10/library/struct.html#format-characters
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>>> struct.pack("<I", 0x61626364) # little endian
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b'dcba'
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>>> struct.pack(">I", 0x61626364) # big endian
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b'abcd'
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#+END_SRC
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***** iex
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#+BEGIN_SRC elixir
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iex(1)> <<0x61626364::32>>
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"abcd"
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iex(2)> Base.decode16("61626364")
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{:ok, "abcd"}
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#+END_SRC
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