Grandstream Networks UCM6200 Series SQLi (Web UI) - Nessus

Critical Plugin ID: 160531

This page contains detailed information about the Grandstream Networks UCM6200 Series SQLi (Web UI) 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: 160531
Name: Grandstream Networks UCM6200 Series SQLi (Web UI)
Filename: grandstream_networking_cve-2020-5722.nasl
Vulnerability Published: 2020-03-23
This Plugin Published: 2022-05-05
Last Modification Time: 2022-05-05
Plugin Version: 1.2
Plugin Type: remote
Plugin Family: Misc.
Dependencies: grandstream_networking_solutions_web_detect.nbin

Vulnerability Information

Severity: Critical
Vulnerability Published: 2020-03-23
Patch Published: 2020-02-03
CVE [?]: CVE-2020-5722
CPE [?]: N/A

Synopsis

The remote device is vulnerable and can be compromised

Description

A SQL injection vulnerability exists in Grandstream UCM6200 Series devices. An unauthenticated, remote attacker can exploit this to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.

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

Solution

Update to the fixed version as per the advisory.

Public Exploits

Target Network Port(s): 80, 443
Target Asset(s): Services/www
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 Grandstream Networks UCM6200 Series SQLi (Web UI) vulnerability:

Metasploit: exploit/linux/http/grandstream_ucm62xx_sendemail_rce
[Grandstream UCM62xx IP PBX sendPasswordEmail RCE]
Exploit-DB: exploits/hardware/webapps/48247.py
[EDB-48247: UCM6202 1.0.18.13 - Remote Command Injection]

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-2020-5722
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, Inc.
##

include('compat.inc');

if (description)
{
  script_id(160531);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/05");

  script_cve_id("CVE-2020-5722");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/07/28");

  script_name(english:"Grandstream Networks UCM6200 Series SQLi (Web UI)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is vulnerable and can be compromised");
  script_set_attribute(attribute:"description", value:
"A SQL injection vulnerability exists in Grandstream UCM6200 Series devices. An unauthenticated, remote attacker can
exploit this to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails
in versions before 1.0.20.17. 

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/research/tra-2020-15");
  script_set_attribute(attribute:"solution", value:
"Update to the fixed version as per the advisory.");
  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:"cvss_score_source", value:"CVE-2020-5722");

  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:'Grandstream UCM62xx IP PBX sendPasswordEmail RCE');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/05");

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

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

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

  script_dependencies("grandstream_networking_solutions_web_detect.nbin");
  script_require_ports("Services/www", 80, 443);

  exit(0);
}

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

var port = get_http_port(default:80, embedded:TRUE);
var app_info = vcf::get_app_info(app:'Grandstream Networking Solutions', port:port, webapp:TRUE);

# UCM6200 Series Models only. Empty model and paranoid still runs
if (empty_or_null(app_info.Model))
{
  if (report_paranoia < 2)
    audit(AUDIT_POTENTIAL_VULN, 'Grandstream device', app_info.version);
  else
    app_info.Model = UNKNOWN_VER;
}
else if (app_info.Model !~ "UCM62[0-9]{2}($|[^0-9])")
  audit(AUDIT_HOST_NOT, 'an affected Grandstream device');

var constraints = [
  { 'fixed_version' : '1.0.20.17' }
];

vcf::grandstream::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE, flags:{'sqli':TRUE});

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/grandstream_networking_cve-2020-5722.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\grandstream_networking_cve-2020-5722.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/grandstream_networking_cve-2020-5722.nasl

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How to Run

Here is how to run the Grandstream Networks UCM6200 Series SQLi (Web UI) 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 Grandstream Networks UCM6200 Series SQLi (Web UI) plugin ID 160531.
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 grandstream_networking_cve-2020-5722.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a grandstream_networking_cve-2020-5722.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - grandstream_networking_cve-2020-5722.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 grandstream_networking_cve-2020-5722.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

160530 - Grandstream Networks UCM6200 Series SQLi (Phone Web UI)
160532 - Grandstream Networks UCM6200 Series SQLi (SIP)
123520 - Multiple Command Injection Vulnerabilities in Grandstream Products
123796 - Blind Command Injection Vulnerability in Grandstream Products
124173 - Multiple Command Injection Vulnerabilities in Grandstream Products
137182 - Cisco IOS XE Software Web UI RCE (cisco-sa-iosxe-webui-rce-uk8BXcUD)
139325 - Cisco IOS XE Software Web UI Command Injection (cisco-sa-web-cmdinj2-fOnjk2LD)
106699 - FreeBSD : Mailman -- XSS (XSS) vulnerability in the web UI (3d0eeef8-0cf9-11e8-99b0-d017c2987f9a)
88965 - Nessus Web UI Scanned Content Stored XSS
99595 - Tenable Appliance < 4.5.0 Web UI simpleupload.py Remote Command Execution (CVE-2017-8051)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file grandstream_networking_cve-2020-5722.nasl version 1.2. For more plugins, visit the Nessus Plugin Library.

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Grandstream Networks UCM6200 Series SQLi (Web UI) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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