TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload - Nessus

High Plugin ID: 56735

This page contains detailed information about the TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

hide

Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 56735
Name: TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload
Filename: timthumb_cache_dir_arbitrary_upload.nasl
Vulnerability Published: 2011-08-02
This Plugin Published: 2011-11-08
Last Modification Time: 2022-04-11
Plugin Version: 1.20
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: wordpress_detect.nasl, wordpress_timthumb_detect.nbin
Required KB Items [?]: installed_sw/TimThumb, installed_sw/WordPress, www/PHP

Vulnerability Information

Severity: High
Vulnerability Published: 2011-08-02
Patch Published: 2011-07-29
CVE [?]: CVE-2011-4106
CPE [?]: cpe:/a:binarymoon:timthumb, cpe:/a:timthumb:timthumb, cpe:/a:wordpress:wordpress

Synopsis

The remote web server hosts a web application that allows an attacker to upload arbitrary PHP files.

Description

The version of TimThumb hosted on the remote web server allows an unauthenticated, remote attacker to upload arbitrary PHP files as specified by input to the 'src' parameter and retrieved from third- party sites to its cache directory. It's likely that these files can then be executed by requesting them by means of a specially crafted URL, which would result in arbitrary code execution subject to the privileges of the web server process.

Note that this could be by design or because of a vulnerability in the way TimThumb validates the third-party host. Regardless, it represents a security vulnerability as it could allow for arbitrary PHP code execution.

Solution

Upgrade to TimThumb version 2.0 or higher or refer to the advisories for software packages using TimThumb for upgrade instructions.

Public Exploits

Target Network Port(s): 80
Target Asset(s): Services/www
Exploit Available: True (D2 Elliot)
Exploit Ease: No exploit is required

Here's the list of publicly known exploits and PoCs for verifying the TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload vulnerability:

D2 Elliot: wordpress_verve_meta_boxes_1.2.8_file_upload.html
[Wordpress Verve Meta Boxes 1.2.8 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.

Risk Information

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

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)

Go back to menu.

Plugin Source

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

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

if (description)
{
  script_id(56735);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2011-4106");
  script_bugtraq_id(48963);

  script_name(english:"TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a web application that allows an attacker
to upload arbitrary PHP files.");
  script_set_attribute(attribute:"description", value:
"The version of TimThumb hosted on the remote web server allows an
unauthenticated, remote attacker to upload arbitrary PHP files as
specified by input to the 'src' parameter and retrieved from third-
party sites to its cache directory. It's likely that these files can
then be executed by requesting them by means of a specially crafted
URL, which would result in arbitrary code execution subject to the
privileges of the web server process.

Note that this could be by design or because of a vulnerability in the
way TimThumb validates the third-party host. Regardless, it represents
a security vulnerability as it could allow for arbitrary PHP code
execution.");
  script_set_attribute(attribute:"see_also", value:"https://www.binarymoon.co.uk/2011/08/timthumb-2/");
  # http://markmaunder.com/2011/08/02/technical-details-and-scripts-of-the-wordpress-timthumb-php-hack/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1c76d435");
  script_set_attribute(attribute:"solution", value:
"Upgrade to TimThumb version 2.0 or higher or refer to the advisories
for software packages using TimThumb for upgrade instructions.");
  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:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"d2_elliot_name", value:"Wordpress Verve Meta Boxes 1.2.8 File Upload");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/08");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wordpress:wordpress");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:binarymoon:timthumb");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:timthumb:timthumb");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2011-2022 Tenable Network Security, Inc.");

  script_dependencies("wordpress_detect.nasl", "wordpress_timthumb_detect.nbin");
  script_require_keys("www/PHP", "installed_sw/WordPress", "installed_sw/TimThumb");
  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 = "WordPress";
plugin = "TimThumb";
get_install_count(app_name:plugin, exit_if_zero:TRUE);

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

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

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

src_parameter = "http://blogger.com." + SCRIPT_NAME;

get_url = dir + "?src=" + src_parameter;
res = http_send_recv3(item:get_url, port:port, method:"GET", exit_on_fail:TRUE);
if (
  ">TimThumb" >< res[2] &&
  ">Query String : src="+src_parameter+"<" >< res[2] &&
  (
    "error reading file " >< res[2] ||
    "remote file not a valid image" >< res[2] ||
    "remote file for " >< res[2] ||
    "can not be accessed. It is likely that the file permissions are restricted" >< res[2] ||
    "error writing temporary file" >< res[2] ||
    "local file for " >< res[2]
  )
)
{
  if (report_verbosity > 0)
  {
    header = 'Nessus was able to verify the issue with the following request';
    trailer = 'Note that Nessus has determined using the URL above only that\n' +
      'TimThumb allows files to be retrieved from arbitrary third-party\n' +
      'sites. It has not tried to actually exploit the issue to execute\n' +
      'arbitrary code.';

    report = get_vuln_report(
      header  : header,
      trailer : trailer,
      items   : get_url,
      port    : port
    );
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else
  audit(AUDIT_WEB_APP_EXT_NOT_AFFECTED, app, install_url, plugin + " script");

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

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

Go back to menu.

How to Run

Here is how to run the TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload 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 TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload plugin ID 56735.
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 timthumb_cache_dir_arbitrary_upload.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

Go back to menu.

References

BID | SecurityFocus Bugtraq ID:

48963

See also:

Similar and related Nessus plugins:

76873 - TimThumb 'timthumb.php' < 2.8.14 WebShot 'src' Parameter Remote Command Execution
76874 - TimThumb 'timthumb.php' WebShot 'src' Parameter Remote Command Execution
130263 - Adobe ColdFusion File Upload (APSB18-33) (CVE-2018-15961)
39790 - Adobe ColdFusion FCKeditor 'CurrentFolder' File Upload
16061 - e107 Image Manager Unauthorized File Upload
39806 - FCKeditor 'CurrentFolder' Arbitrary File Upload
21780 - FCKeditor on Apache connector.php Crafted File Extension Arbitrary File Upload
69273 - Joomla! 2.5.x < 2.5.14 / 3.x < 3.1.5 .php. File Upload RCE
64470 - Collector Component for Joomla! File Upload RCE
79420 - Creative Contact Form Component for Joomla! File Upload RCE
25736 - Expose for Joomla! File Upload RCE
118310 - jQuery-File-Upload Arbitrary File Upload Vulnerability (Remote Check)
58654 - Lenovo ThinkManagement Console RunAMTCommand Operation -PutUpdateFileCore Command Parsing Arbitrary File Upload
22367 - Limbo Contact Component (com_contact) contact.html.php contact_attach Unrestricted File Upload
82078 - ManageEngine Desktop Central statusUpdate Arbitrary File Upload RCE (intrusive check)
82079 - ManageEngine Desktop Central Arbitrary File Upload and RCE (Safe Check)
71217 - ManageEngine Desktop Central AgentLogUploadServlet Arbitrary File Upload RCE (intrusive check)
71218 - ManageEngine Desktop Central AgentLogUploadServlet Arbitrary File Upload
143600 - ManageEngine ServiceDesk Plus < 10.0 Build 10012 Arbitrary File Upload
63638 - MoinMoin twikidraw.py Traversal File Upload Arbitrary File Overwrite
47581 - Novell 'modulemanager' Servlet Arbitrary File Upload (intrusive check)
47582 - Novell 'modulemanager' Servlet Arbitrary File Upload (safe check)
66914 - Novell ZENworks Control Center File Upload Remote Code Execution (intrusive check)
35261 - OneOrZero Helpdesk tinfo.php Arbitrary File Upload
49271 - OpenX Open Flash Chart ofc_upload_image.php File Upload Arbitrary Code Execution
51119 - Sitefinity CMS Arbitrary File Upload
22303 - TikiWiki jhot.php Arbitrary File Upload
61517 - Umbraco codeEditorSave.asmx SaveDLRScript Operation Traversal File Upload Arbitrary Command Execution
80083 - Visual Mining NetCharts Server Arbitrary File Upload
105732 - Western Digital MyCloud Unauthenticated File Upload
79421 - Creative Contact Form Plugin for WordPress File Upload RCE
76526 - MailPoet Newsletters for WordPress Arbitrary File Upload
105372 - WP Symposium Plugin Arbitrary File Upload
160208 - WSO2 Multiple Products File Upload Remote Command Execution (CVE-2022-29464)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file timthumb_cache_dir_arbitrary_upload.nasl version 1.20. For more plugins, visit the Nessus Plugin Library.

Go back to menu.

TimThumb Cache Directory 'src' Parameter Arbitrary PHP File Upload - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

Nessus Plugin Library

Solving Problems with Office 365 Email from GoDaddy

Empire Module Library

CrackMapExec Module Library

Metasploit Android Modules

Top 16 Active Directory Vulnerabilities

Top 10 Vulnerabilities: Internal Infrastructure Pentest

Terminal Escape Injection

Cisco Password Cracking and Decrypting Guide

Capture Passwords using Wireshark

SSH Brute Force Attack Tool using PuTTY / Plink (ssh-putty-brute.ps1)

SMB Brute Force Attack Tool in PowerShell (SMBLogin.ps1)

Port Scanner in PowerShell (TCP/UDP)

Nessus CSV Parser and Extractor

Default Password Scanner (default-http-login-hunter.sh)