WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution - Nessus

Critical Plugin ID: 140211

This page contains detailed information about the WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code 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: 140211
Name: WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution
Filename: wordpress_plugin_wp_file_manager_6_9_rce.nasl
Vulnerability Published: 2020-09-01
This Plugin Published: 2020-09-04
Last Modification Time: 2022-02-08
Plugin Version: 1.8
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: wordpress_plugin_detect.nbin
Required KB Items [?]: installed_sw/WordPress, www/PHP

Vulnerability Information

Severity: Critical
Vulnerability Published: 2020-09-01
Patch Published: 2020-09-01
CVE [?]: CVE-2020-25213
CPE [?]: cpe:/a:wordpress:wordpress
Exploited by Malware: True

Synopsis

The remote WordPress application has a plugin installed that is vulnerable to a remote code execution vulnerability.

Description

The WordPress application running on the remote host has a version of the 'File Manager' plugin that is 6.x prior to 6.9. It is, therefore, affected by a remote code execution vulnerability due to improper inclusion of elFinder. An unauthenticated, remote attacker can exploit this, by sending a specially crafted request to the connector.minimal.php file, to gain remote code execution on the vulnerable WordPress site.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the 'File Manager' plugin to version 6.9 or later.

Public Exploits

Target Network Port(s): 80
Target Asset(s): Services/www
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, D2 Elliot)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution vulnerability:

Metasploit: exploit/multi/http/wp_file_manager_rce
[WordPress File Manager Unauthenticated Remote Code Execution]
Exploit-DB: exploits/php/webapps/49178.sh
[EDB-49178: WordPress Plugin Wp-FileManager 6.8 - RCE]
GitHub: https://github.com/0000000O0Oo/Wordpress-CVE-2020-25213
[CVE-2020-25213: Will write a python script for exploiting this vulnerability]
GitHub: https://github.com/3xPr1nc3/wp-file-manager-exploit
[CVE-2020-25213]
GitHub: https://github.com/Astrogeorgeonethree/Starred
[CVE-2020-25213]
GitHub: https://github.com/BraveLittleRoaster/wp-pwn
[CVE-2020-25213]
GitHub: https://github.com/EdgeSecurityTeam/Vulnerability
[CVE-2020-25213]
GitHub: https://github.com/aron-tn/0day-elFinder-2020
[CVE-2020-25213: Zero-Day Vulnerability in File Manager Plugin 6.7 ( CVE 2020-25213 )]
GitHub: https://github.com/electronforce/py2to3
[CVE-2020-25213]
GitHub: https://github.com/forse01/CVE-2020-25213-Wordpress
[CVE-2020-25213]
GitHub: https://github.com/k0rup710n/Wordpress-CVE-2020-25213
[CVE-2020-25213: Will write a python script for exploiting this vulnerability]
GitHub: https://github.com/kakamband/WPKiller
[CVE-2020-25213: CVE-2020-25213 Wordpress File Manager 6.7 Plugin 0day exploit]
GitHub: https://github.com/piruprohacking/CVE-2020-25213
[CVE-2020-25213]
GitHub: https://github.com/w4fz5uck5/wp-file-manager-0day
[CVE-2020-25213]
GitHub: https://medium.com/@mansoorr/exploiting-cve-2020-25213-wp-file-manager-wordpress-plugin-6-9-3f79241f0cd8
[CVE-2020-25213]
GitHub: https://github.com/mansoorr123/wp-file-manager-CVE-2020-25213
[CVE-2020-25213: https://medium.com/@mansoorr/exploiting-cve-2020-25213-wp-file-manager-wordpress-plug ...]

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-2020-25213
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (Medium)

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

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	9.4 (Critical)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.4 (Critical)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(140211);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/08");

  script_cve_id("CVE-2020-25213");
  script_xref(name:"IAVA", value:"2020-A-0425");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");

  script_name(english:"WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution");

  script_set_attribute(attribute:"synopsis", value:
"The remote WordPress application has a plugin installed that is vulnerable to a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The WordPress application running on the remote host has a version of the 'File Manager' plugin that is 6.x prior to
6.9. It is, therefore, affected by a remote code execution vulnerability due to improper inclusion of elFinder. An
unauthenticated, remote attacker can exploit this, by sending a specially crafted request to the connector.minimal.php
file, to gain remote code execution on the vulnerable WordPress site.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version   
number.");
  # https://www.wordfence.com/blog/2020/09/700000-wordpress-users-affected-by-zero-day-vulnerability-in-file-manager-plugin/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?53de38d7");
  script_set_attribute(attribute:"solution", value:
"Upgrade the 'File Manager' plugin to version 6.9 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:H/RL:OF/RC:C");
  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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-25213");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"WordPress File Manager < 6.9 File Upload");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'WordPress File Manager Unauthenticated Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/04");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wordpress:wordpress");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("wordpress_plugin_detect.nbin");
  script_require_keys("installed_sw/WordPress", "www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

app_info = vcf::wordpress::plugin::get_app_info(plugin:'wp-file-manager');
vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { 'min_version' : '6.0', 'fixed_version' : '6.9' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/wordpress_plugin_wp_file_manager_6_9_rce.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\wordpress_plugin_wp_file_manager_6_9_rce.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/wordpress_plugin_wp_file_manager_6_9_rce.nasl

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How to Run

Here is how to run the WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code 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 WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution plugin ID 140211.
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 wordpress_plugin_wp_file_manager_6_9_rce.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a wordpress_plugin_wp_file_manager_6_9_rce.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - wordpress_plugin_wp_file_manager_6_9_rce.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 wordpress_plugin_wp_file_manager_6_9_rce.nasl -t <IP/HOST>

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References

IAVA | Information Assurance Vulnerability Alert:

2020-A-0425

See also:

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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file wordpress_plugin_wp_file_manager_6_9_rce.nasl version 1.8. For more plugins, visit the Nessus Plugin Library.

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WordPress Plugin 'File Manager' 6.x < 6.9 Remote Code Execution - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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