Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution - Nessus

Critical Plugin ID: 72342

This page contains detailed information about the Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution 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: 72342
Name: Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution
Filename: synology_dsm_4_2_3243.nasl
Vulnerability Published: 2014-01-07
This Plugin Published: 2014-02-05
Last Modification Time: 2021-01-19
Plugin Version: 1.8
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: synology_diskstation_manager_detect.nbin
Required KB Items [?]: www/synology_dsm

Vulnerability Information

Severity: Critical
Vulnerability Published: 2014-01-07
Patch Published: 2013-12-19
CVE [?]: CVE-2013-6955
CPE [?]: cpe:/a:synology:diskstation_manager

Synopsis

The remote Synology DiskStation Manager is affected by a remote code execution vulnerability.

Description

According to its version number, the Synology DiskStation Manager installed on the remote host is affected by a remote code execution vulnerability. The issue exists due to improper validation of values submitted in the 'X-TMP-FILE' header field along with the 'X-TYPE-NAME: SLICEUPLOAD' header field to the 'imageSelector.cgi' script.

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

Solution

Upgrade to 4.0-2259 / 4.2-3243 / 4.3-3810 Update 1 or later, or contact the vendor.

Public Exploits

Target Network Port(s): 5000, 5001
Target Asset(s): Services/www
Exploit Available: True (Metasploit Framework, Exploit-DB)
Exploit Ease: No exploit is required

Here's the list of publicly known exploits and PoCs for verifying the Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution vulnerability:

Metasploit: exploit/linux/http/synology_dsm_sliceupload_exec_noauth
[Synology DiskStation Manager SLICEUPLOAD Remote Command Execution]
Exploit-DB: exploits/unix/remote/30470.rb
[EDB-30470: Synology DiskStation Manager - SLICEUPLOAD Remote 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:F/RL:OF/RC:C

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	8.3 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.3 (High)

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Plugin Source

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

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

if (description)
{
  script_id(72342);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2013-6955");
  script_bugtraq_id(64516);
  script_xref(name:"EDB-ID", value:"30470");
  script_xref(name:"CERT", value:"615910");

  script_name(english:"Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution");
  script_summary(english:"Checks the version of Synology DiskStation Manager");

  script_set_attribute(attribute:"synopsis", value:
"The remote Synology DiskStation Manager is affected by a remote code
execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its version number, the Synology DiskStation Manager
installed on the remote host is affected by a remote code execution
vulnerability. The issue exists due to improper validation of values
submitted in the 'X-TMP-FILE' header field along with the
'X-TYPE-NAME: SLICEUPLOAD' header field to the 'imageSelector.cgi'
script.

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.securityfocus.com/archive/1/531602/30/0/threaded");
  script_set_attribute(attribute:"solution", value:
"Upgrade to 4.0-2259 / 4.2-3243 / 4.3-3810 Update 1 or later, or
contact the vendor.");
  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:F/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Synology DiskStation Manager SLICEUPLOAD Remote Command Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/05");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:synology:diskstation_manager");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("synology_diskstation_manager_detect.nbin");
  script_require_keys("www/synology_dsm");
  script_require_ports("Services/www", 5000, 5001);

  exit(0);
}

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

port = get_http_port(default:5000, embedded:TRUE);

install = get_install_from_kb(appname:"synology_dsm", port:port, exit_on_fail:TRUE);

app = "Synology DiskStation Manager (DSM)";
dir = install["dir"];
install_loc = build_url(port:port, qs:dir + "/");

version = install["ver"];
if (version == UNKNOWN_VER) audit(AUDIT_UNKNOWN_WEB_APP_VER, app, install_loc);

ver = split(version, sep:".", keep:FALSE);
for (i=0; i<max_index(ver); i++)
  ver[i] = int(ver[i]);

if (
  (ver[0] < 4) ||
  (ver[0] == 4 && ver[1] == 0 && ver[2] < 2259) ||
  (ver[0] == 4 && ver[1] == 1) ||
  (ver[0] == 4 && ver[1] == 2 && ver[2] < 3243 )
)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  URL               : ' + install_loc +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : 4.0-2259 / 4.2-3243 or later\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_loc, version);

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/synology_dsm_4_2_3243.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\synology_dsm_4_2_3243.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/synology_dsm_4_2_3243.nasl

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How to Run

Here is how to run the Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution 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 Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution plugin ID 72342.
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 synology_dsm_4_2_3243.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a synology_dsm_4_2_3243.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - synology_dsm_4_2_3243.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 synology_dsm_4_2_3243.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

64516

CERT | Computer Emergency Response Team:

615910

See also:

Similar and related Nessus plugins:

72345 - Synology DiskStation Manager 4.3-x < 4.3-3810 Update 1 Multiple Vulnerabilities
72343 - Synology DiskStation Manager < 4.3-3776 Update 2 Multiple Vulnerabilities
72346 - Synology DiskStation Manager < 4.3-3810 Update 3 Multiple FileBrowser Component Directory Traversal Vulnerabilities
72347 - Synology DiskStation Manager uistrings.cgi lang Parameter Directory Traversal
72344 - Synology DiskStation Manager < 4.3-3776 Update 3 info.cgi Multiple Parameters XSS

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file synology_dsm_4_2_3243.nasl version 1.8. For more plugins, visit the Nessus Plugin Library.

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Synology DiskStation Manager 4.0-x < 4.0-2259 / 4.1-x / 4.2-x < 4.2-3243 SLICEUPLOAD Function Remote Code Execution - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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