Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows - Nessus

High Plugin ID: 69421

This page contains detailed information about the Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows 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: 69421
Name: Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows
Filename: tumbleweed_activex_overflow.nasl
Vulnerability Published: 2008-04-07
This Plugin Published: 2013-08-21
Last Modification Time: 2019-11-27
Plugin Version: 1.11
Plugin Type: local
Plugin Family: Windows
Dependencies: smb_hotfixes.nasl
Required KB Items [?]: SMB/Registry/Enumerated

Vulnerability Information

Severity: High
Vulnerability Published: 2008-04-07
Patch Published: N/A
CVE [?]: CVE-2008-1724
CPE [?]: N/A

Synopsis

The remote Windows host has an ActiveX control that is susceptible to multiple buffer overflow attacks.

Description

The remote host contains the TumbleWeed SecureTransport ActiveX control, used to perform secure file transfer functions.

The version of this control on the remote host is reportedly affected by multiple stack-based buffer overflows. If an attacker can trick a user on the affected host into visiting a specially crafted web page, these issues could be leveraged to execute arbitrary code on the host subject to the user's privileges.

Solution

Disable the use of this ActiveX control from within Internet Explorer by setting its kill bit.

Public Exploits

Target Network Port(s): 139, 445
Target Asset(s): N/A
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 Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows vulnerability:

Metasploit: exploit/windows/browser/tumbleweed_filetransfer
[Tumbleweed FileTransfer vcst_eu.dll ActiveX Control Buffer Overflow]
Exploit-DB: exploits/windows/remote/5398.html
[EDB-5398: Tumbleweed SecureTransport 4.6.1 FileTransfer - ActiveX Buffer Overflow]
Exploit-DB: exploits/windows/remote/16563.rb
[EDB-16563: Tumbleweed SecureTransport FileTransfer - 'vcst_eu.dll' ActiveX Control Buffer Overflow (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:M/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	7.7 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.7 (High)

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Plugin Source

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

include("compat.inc");

if (description)
{
  script_id(69421);
  script_version("1.11");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2008-1724");
  script_xref(name:"EDB-ID", value:"5398");

  script_name(english:"Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows");
  script_summary(english:"Checks versions of Tumbleweed SecureTransport ActiveX control");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has an ActiveX control that is susceptible to
multiple buffer overflow attacks.");
  script_set_attribute(attribute:"description", value:
"The remote host contains the TumbleWeed SecureTransport ActiveX
control, used to perform secure file transfer functions.

The version of this control on the remote host is reportedly affected
by multiple stack-based buffer overflows. If an attacker can trick a
user on the affected host into visiting a specially crafted web page,
these issues could be leveraged to execute arbitrary code on the host
subject to the user's privileges.");
  script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/archive/1/490536/100/0/threaded");
  script_set_attribute(attribute:"solution", value:
"Disable the use of this ActiveX control from within Internet Explorer
by setting its kill bit.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Tumbleweed FileTransfer vcst_eu.dll ActiveX Control Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/04/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/08/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}


include("global_settings.inc");
include("smb_func.inc");
include("smb_activex_func.inc");


if (!get_kb_item("SMB/Registry/Enumerated")) exit(0);


# Locate files used by the controls.
if (activex_init() != ACX_OK) exit(0);

clsid = "{38681fbd-d4cc-4a59-a527-b3136db711d3}";
file = activex_get_filename(clsid:clsid);
if (file)
{
  report = NULL;
  if (report_paranoia > 1)
    report = string(
      "According to the registry, the vulnerable control is installed as :\n",
      "\n",
      "  ", file, "\n",
      "\n",
      "Note, though, that Nessus did not check whether the kill bit was\n",
      "set for the control's CLSID because of the Report Paranoia setting\n",
      "in effect when this scan was run.\n"
    );
  else if (activex_get_killbit(clsid:clsid) == 0)
    report = string(
      "According to the registry, the vulnerable control is installed as :\n",
      "\n",
      "  ", file, "\n",
      "\n",
      "Moreover, its kill bit is not set so it is accessible via\n",
      "Internet Explorer."
    );
  if (report) security_hole(port:kb_smb_transport(), extra: report);
}
activex_end();

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

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

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How to Run

Here is how to run the Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows 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 Windows plugin family.
On the right side table select Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows plugin ID 69421.
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 tumbleweed_activex_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

CWE | Common Weakness Enumeration:

CWE-119 (Weakness) Improper Restriction of Operations within the Bounds of a Memory Buffer

See also:

Similar and related Nessus plugins:

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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file tumbleweed_activex_overflow.nasl version 1.11. For more plugins, visit the Nessus Plugin Library.

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Tumbleweed SecureTransport vcst_eu.dll ActiveX Control Buffer Overflows - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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