Realtek SDK miniigd SOAP Service RCE - Nessus

Critical Plugin ID: 83185

This page contains detailed information about the Realtek SDK miniigd SOAP Service 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
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 83185
Name: Realtek SDK miniigd SOAP Service RCE
Filename: realtek_cve_2014_8361.nasl
Vulnerability Published: 2015-04-24
This Plugin Published: 2015-05-01
Last Modification Time: 2019-11-22
Plugin Version: 1.13
Plugin Type: remote
Plugin Family: Misc.
Dependencies: http_version.nasl, upnp_search.nasl
Required KB Items [?]: Settings/ParanoidReport

Vulnerability Information

Severity: Critical
Vulnerability Published: 2015-04-24
Patch Published: N/A
CVE [?]: CVE-2014-8361
CPE [?]: cpe:/a:realtek:realtek_sdk
Exploited by Malware: True

Synopsis

A software development kit running on the remote device is affected by a remote code execution vulnerability.

Description

According to its banner, the Realtek Software Development Kit is running on the remote device. It is, therefore, affected by a flaw in the miniigd SOAP service due to a failure to properly sanitize user input when handling NewInternalClient requests. An unauthenticated, remote attacker, using a crafted request, can exploit this to execute arbitrary code with root level privileges.

Solution

There is currently no fix available. As a workaround, restrict access to vulnerable devices.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): Services/www, upnp/server
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 Realtek SDK miniigd SOAP Service RCE vulnerability:

Metasploit: exploit/linux/http/realtek_miniigd_upnp_exec_noauth
[Realtek SDK Miniigd UPnP SOAP Command Execution]
Metasploit: exploit/linux/http/dlink_upnp_exec_noauth
[D-Link Devices UPnP SOAP Command Execution]
Exploit-DB: exploits/linux/remote/37169.rb
[EDB-37169: Realtek SDK - Miniigd UPnP SOAP Command Execution (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:L/Au:N/C:C/I:C/A:C/E:H/RL:OF/RC:C

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	8.7 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.7 (High)

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)

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Plugin Source

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

include("compat.inc");

if (description)
{
  script_id(83185);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id("CVE-2014-8361");
  script_bugtraq_id(74330);
  script_xref(name:"ZDI", value:"ZDI-15-155");
  script_xref(name:"EDB-ID", value:"37169");

  script_name(english:"Realtek SDK miniigd SOAP Service RCE");
  script_summary(english:"Checks the banners.");

  script_set_attribute(attribute:"synopsis", value:
"A software development kit running on the remote device is affected by
a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the Realtek Software Development Kit is
running on the remote device. It is, therefore, affected by a flaw in
the miniigd SOAP service due to a failure to properly sanitize user
input when handling NewInternalClient requests. An unauthenticated,
remote attacker, using a crafted request, can exploit this to execute
arbitrary code with root level privileges.");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-15-155/");
  script_set_attribute(attribute:"solution", value:
"There is currently no fix available. As a workaround, restrict access
to vulnerable devices.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Realtek SDK Miniigd UPnP SOAP Command Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/04/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/05/01");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:realtek:realtek_sdk");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("upnp_search.nasl", "http_version.nasl");
  script_require_keys("Settings/ParanoidReport");
  script_require_ports("upnp/server", "Services/www");

  exit(0);
}

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("audit.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

global_var fix, vuln;
vuln = FALSE;

##
# Checks if the given server banner is from a vulnerable
# version of realtek upnpd.  If so, a reporting function is
# called
#
# @param port port number of the service being tested
# @param server server banner advertised on "port"
# @param proto the protocol the port is accessible by (tcp or udp)
##
function _check_realtek_version(port, server, proto)
{
  local_var ver, report, banner;
  server = chomp(server);
  ver = eregmatch(string:server, pattern:"realtek/v((0(\.[0-9.]+)?|1\.[0-3](\.[0-9.]+)?|1)$)", icase:TRUE);

  if (!isnull(ver))
  {
    vuln = TRUE;

    banner = ereg_replace(string:server, pattern:'SERVER: *(.+)', replace:"\1", icase:TRUE);
    report =
      '\n  Server banner     : ' + banner +
      '\n  Installed version : ' + ver[1] + '\n';

    security_report_v4(port:port,
                       proto:proto,
                       severity:SECURITY_HOLE,
                       extra:report);
  }
}

# check the server string retrieved via UDP 1900 by upnp_search.nasl
servers = get_kb_list('upnp/server');
foreach(server in servers) _check_realtek_version(port:1900, server:server, proto:'udp');

# check any server strings retrieved via HTTP
www_ports = get_kb_list('Services/www');

if(!vuln && isnull(www_ports))
  audit(AUDIT_HOST_NOT, 'affected');

foreach port (www_ports)
{
  server = http_server_header(port:port);
  if (empty_or_null(server)) continue;

  _check_realtek_version(port:port, server:server, proto:'tcp');
}

if (!vuln)
  audit(AUDIT_HOST_NOT, 'affected');

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/realtek_cve_2014_8361.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\realtek_cve_2014_8361.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/realtek_cve_2014_8361.nasl

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How to Run

Here is how to run the Realtek SDK miniigd SOAP Service RCE 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 Misc. plugin family.
On the right side table select Realtek SDK miniigd SOAP Service RCE plugin ID 83185.
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 realtek_cve_2014_8361.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a realtek_cve_2014_8361.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - realtek_cve_2014_8361.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 realtek_cve_2014_8361.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

74330

ZDI | Zero Day Initiative:

ZDI-15-155

See also:

Similar and related Nessus plugins:

94396 - Default Password 'realtek' for 'root' Account

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file realtek_cve_2014_8361.nasl version 1.13. For more plugins, visit the Nessus Plugin Library.

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Realtek SDK miniigd SOAP Service RCE - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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