GDB (The GNU Project Debugger)
GDB는
컴퓨터 프로그램의 실행을 추적하고 수정할 수 있는
많은 기능들을 제공한다.
사용자는
프로그램의 내부 변수들의 값을 주시하거나 변경할
수 있으며,
프로그램의
일반적인 실행 과정과 독립적으로 함수를 호출할 수도
있다.
시스템
해킹에서 gdb를
사용할 경우 분석해야 하는 바이너리는 디버깅을 위해
컴파일 된 바이너리가 아니기 때문에 변수 이름이나
메인 함수 같은...
p { margin-bottom: 0.25cm; direction: ltr; line-height: 120%; text-align: left;진법
변환과 데이터의 표현
- 2 진수
(binary
digit) – 숫자
0 과
1만으로
모든 수를 나타내는 방법
10진법
2진법
기호
0
0
+ 0 = 0
●●
1
0
...
bofrtl.c source code
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URI
CODE
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XHAENEUNG
CODE
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HOTSUMMER
CODE
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CONVERT
CODE
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MISPELL
CODE
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ENCRYPT
CODE
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LECTURE
CODE
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DRAWRECT
CODE
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ENDIAN
CODE
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MERCY
CODE
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bigbof03.c source code
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Bigbof02.c source code
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Bigbof.c source code
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희생자 PC-Windows XP SP3(), 공격자 PC-Backtrack5R3(), 서버 PC-CentOS 5.3() 세 대를 같은 네트워크 대역으로 망을 구성한다. (VMware 사용)
서버 PC에 telnet-server를 설치하고 telnet services를 시작한다.
telnet-server가 설치되어 있지 않다면
[root@localhost ~]# sudo...