SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows - Nessus

High Plugin ID: 27618

This page contains detailed information about the SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple 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: 27618
Name: SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows
Filename: sonicwall_nelx_activex_overflow.nasl
Vulnerability Published: 2007-11-01
This Plugin Published: 2007-11-03
Last Modification Time: 2018-11-15
Plugin Version: 1.20
Plugin Type: local
Plugin Family: Windows
Dependencies: smb_hotfixes.nasl
Required KB Items [?]: SMB/Registry/Enumerated

Vulnerability Information

Severity: High
Vulnerability Published: 2007-11-01
Patch Published: N/A
CVE [?]: CVE-2007-5603, CVE-2007-5814
CPE [?]: cpe:/a:sonicwall:ssl_vpn

Synopsis

The remote Windows host has an ActiveX control that is affected by buffer overflow vulnerabilities.

Description

The remote host contains the 'NELaunchCtrl' ActiveX control included with the SonicWALL NetExtender VPN client software.

The version of this control installed on the remote host fails to validate arguments to several methods, such as 'AddRouteEntry', 'serverAddress', 'sessionId', 'clientIPLower', etc. If a remote attacker can trick a user on the affected host into visiting a specially crafted web page, the attacker could leverage these issues to overflow a buffer and execute arbitrary code on the host subject to the user's privileges.

Solution

Upgrade to version 2.1.0.51 / 2.5.0.56 or later of the control.

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 SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows vulnerability:

Metasploit: exploit/windows/browser/sonicwall_addrouteentry
[SonicWall SSL-VPN NetExtender ActiveX Control Buffer Overflow]
Exploit-DB: exploits/windows/remote/16616.rb
[EDB-16616: SonicWALL SSL-VPN - NetExtender 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(27618);
  script_version("1.20");

  script_cve_id("CVE-2007-5603", "CVE-2007-5814");
  script_bugtraq_id(26288);
  script_xref(name:"CERT", value:"298521");

  script_name(english:"SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows");
  script_summary(english:"Checks version of NELaunchCtrl ActiveX control"); 
 
 script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has an ActiveX control that is affected by
buffer overflow vulnerabilities." );
 script_set_attribute(attribute:"description", value:
"The remote host contains the 'NELaunchCtrl' ActiveX control included
with the SonicWALL NetExtender VPN client software. 

The version of this control installed on the remote host fails to
validate arguments to several methods, such as 'AddRouteEntry',
'serverAddress', 'sessionId', 'clientIPLower', etc.  If a remote
attacker can trick a user on the affected host into visiting a
specially crafted web page, the attacker could leverage these issues 
to overflow a buffer and execute arbitrary code on the host subject to
the user's privileges." );
 script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/483097/30/0/threaded" );
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2007/Nov/12");
 script_set_attribute(attribute:"solution", value:
"Upgrade to version 2.1.0.51 / 2.5.0.56 or later of the control." );
 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:'SonicWall SSL-VPN NetExtender ActiveX Control Buffer Overflow');
 script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
 script_cwe_id(119);
 script_set_attribute(attribute:"plugin_publication_date", value: "2007/11/03");
 script_set_attribute(attribute:"vuln_publication_date", value: "2007/11/01");
 script_cvs_date("Date: 2018/11/15 20:50:28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe",value:"cpe:/a:sonicwall:ssl_vpn");
script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");

  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 the file used by the controls.
if (activex_init() != ACX_OK) exit(0);

clsid = "{6EEFD7B1-B26C-440D-B55A-1EC677189F30}";
file = activex_get_filename(clsid:clsid);
if (file)
{
  # Check its version.
  ver = activex_get_fileversion(clsid:clsid);
  if (
    ver && 
    (
      ver =~ "^[01]\." ||
      (
        ver =~ "^2\.1\." && 
        activex_check_fileversion(clsid:clsid, fix:"2.1.0.51") == TRUE
      ) ||
      (
        ver =~ "^2\.5\." && 
        activex_check_fileversion(clsid:clsid, fix:"2.5.0.56") == TRUE
      )
    )
  )
  {
    report = NULL;
    if (report_paranoia > 1)
      report = string(
        "Version ", ver, " of 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(
        "Version ", ver, " of the vulnerable control is installed as :\n",
        "\n",
        "  ", file, "\n",
        "\n",
        "Moreover, its kill bit is not set so it is accessible via Internet\n",
        "Explorer.\n"
      );
    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/sonicwall_nelx_activex_overflow.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\sonicwall_nelx_activex_overflow.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/sonicwall_nelx_activex_overflow.nasl

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How to Run

Here is how to run the SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple 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 SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows plugin ID 27618.
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 sonicwall_nelx_activex_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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References

BID | SecurityFocus Bugtraq ID:

26288

CERT | Computer Emergency Response Team:

298521

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:

146091 - SonicWall Secure Mobile Access Remote Code Execution (SNWLID-2021-0001)
159487 - SonicWall Secure Mobile Access (SMA) SQLi (SNWLID-2021-0017)
153807 - SonicWall Secure Mobile Access Arbitrary File Delete (SNWLID-2021-0021)
155961 - SonicWall Secure Mobile Access Multiple Vulnerabilities (SNWLID-2021-0026)
127107 - SonicWall SonicOS Firewall Multiple Management Vulnerabilities (URGENT/11)
141474 - SonicWall SonicOS Buffer Overflow Vulnerability
150720 - SonicWall Secure Remote Access (SRA) Pre-Authentication SQLi (CVE-2019-7481)
159486 - SonicWall Secure Remote Access (SRA) SQLi (SNWLID-2021-0017)

Version

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

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SonicWALL SSL-VPN NetExtender NELaunchCtrl ActiveX Control Multiple Overflows - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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