Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities - Nessus

Critical Plugin ID: 107096

This page contains detailed information about the Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities 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: 107096
Name: Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities
Filename: telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl
Vulnerability Published: 2017-08-22
This Plugin Published: 2018-03-02
Last Modification Time: 2022-04-22
Plugin Version: 1.7
Plugin Type: local
Plugin Family: Windows
Dependencies: telerik_ui_for_aspnet_ajax_installed.nbin
Required KB Items [?]: installed_sw/Telerik UI for ASP.NET AJAX

Vulnerability Information

Severity: Critical
Vulnerability Published: 2017-08-22
Patch Published: 2017-08-15
CVE [?]: CVE-2017-11317, CVE-2017-11357
CPE [?]: cpe:/a:telerik:ui_for_asp.net_ajax

Synopsis

A web application development suite installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Telerik UI for ASP.NET AJAX installed on the remote Windows host is affected by multiple vulnerabilities in Telerik.Web.UI.dll. An unauthenticated, remote attacker can exploit this, via specially crafted data, to execute arbitrary code.

Solution

Upgrade to Telerik UI for ASP.NET AJAX version R2 2017 SP2 (2017.2.711) or later.

Public Exploits

Target Network Port(s): 139, 445
Target Asset(s): N/A
Exploit Available: True (Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities vulnerability:

Exploit-DB: exploits/aspx/webapps/43874.py
[EDB-43874: Telerik UI for ASP.NET AJAX 2012.3.1308 < 2017.1.118 - Arbitrary File Upload]
GitHub: https://github.com/bao7uo/dp_crypto
[CVE-2017-11317]
GitHub: https://github.com/mcgyver5/scrap_telerik
[CVE-2017-11317]
GitHub: https://github.com/bao7uo/dp_crypto
[CVE-2017-11357]
GitHub: https://github.com/bao7uo/RAU_crypto
[CVE-2017-11317: Telerik UI for ASP.NET AJAX File upload and .NET deserialisation exploit ...]
GitHub: https://github.com/bao7uo/RAU_crypto
[CVE-2017-11357: Telerik UI for ASP.NET AJAX File upload and .NET deserialisation exploit ...]

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-2017-11357
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (Medium)

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)

STIG Severity [?]: I
STIG Risk Rating: 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(107096);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/22");

  script_cve_id("CVE-2017-11317", "CVE-2017-11357");
  script_bugtraq_id(103171, 103173);
  script_xref(name:"IAVA", value:"2018-A-0066-S");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/02");

  script_name(english:"Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"A web application development suite installed on the remote Windows
host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Telerik UI for ASP.NET AJAX installed on the remote
Windows host is affected by multiple vulnerabilities in
Telerik.Web.UI.dll. An unauthenticated, remote attacker can exploit
this, via specially crafted data, to execute arbitrary code.");
  # https://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/insecure-direct-object-reference
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?77b0e65f");
  # https://www.telerik.com/support/kb/aspnet-ajax/upload-(async)/details/unrestricted-file-upload
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?49cbdec3");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Telerik UI for ASP.NET AJAX version R2 2017 SP2
(2017.2.711) or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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-2017-11357");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:telerik:ui_for_asp.net_ajax");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("telerik_ui_for_aspnet_ajax_installed.nbin");
  script_require_keys("installed_sw/Telerik UI for ASP.NET AJAX");
  script_require_ports(139, 445);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");

function display_dword (dword, nox)
{
  local_var tmp;
  if (isnull(nox) || (nox == FALSE))
    tmp = "0x";
  else
    tmp = "";
  return "" + tmp + toupper(hexstr(raw_string(
    (dword >>> 24) & 0xFF,
    (dword >>> 16) & 0xFF,
    (dword >>> 8) & 0xFF,
    dword & 0xFF
  )));
}

app_name = "Telerik UI for ASP.NET AJAX";
has_a_patch = FALSE;
install = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);

version = install['version'];
path = install['path'];
web_ui_dll = install['web_ui_dll'];

# 2017.2.711 and later is patched
if (ver_compare(ver:version, fix:"2017.2.711.0", strict:FALSE) >= 0)
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);

# 2011.1.315 to 2017.2.621 have patches + mitigations available
if ((ver_compare(ver:version, fix:"2011.1.315.0", strict:FALSE) >= 0) &&
    (ver_compare(ver:version, fix:"2017.2.621.9999", strict:FALSE) <= 0))

{
  # check for "Telerik.Web.UI.Patch" in the File Description

  # Connect to the appropriate share.
  port = kb_smb_transport();
  login = kb_smb_login();
  pass = kb_smb_password();
  domain = kb_smb_domain();

  if (!smb_session_init())
    audit(AUDIT_FN_FAIL, "smb_session_init");

  share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:web_ui_dll);
  dll = ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1", string:web_ui_dll);

  rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
  if (rc != 1)
  {
    NetUseDel();
    audit(AUDIT_SHARE_FAIL, share);
  }

  fh = CreateFile(
    file:dll,
    desired_access:GENERIC_READ,
    file_attributes:FILE_ATTRIBUTE_NORMAL,
    share_mode:FILE_SHARE_READ,
    create_disposition:OPEN_EXISTING
  );

  file_description = NULL;
  if (!isnull(fh))
  {
    ret = GetFileVersionEx(handle:fh);
    if (!isnull(ret)) children = ret['Children'];
    if (!isnull(children))
    {
      varfileinfo = children['VarFileInfo'];
      if (!isnull(varfileinfo))
      {
        translation =
          (get_word (blob:varfileinfo['Translation'], pos:0) << 16) +
          get_word (blob:varfileinfo['Translation'], pos:2);
        translation = tolower(display_dword(dword:translation, nox:TRUE));
      }
      stringfileinfo = children['StringFileInfo'];
      if (!isnull(stringfileinfo) && !isnull(translation))
      {
        data = stringfileinfo[translation];
        if (!isnull(data)) file_description = data['FileDescription'];
        else
        {
          data = stringfileinfo[toupper(translation)];
          if (!isnull(data)) file_description = data['FileDescription'];
        }
      }
    }
    CloseFile(handle:fh);
  }
  NetUseDel();

  if (empty_or_null(file_description))
    exit(1, "Failed to get the file description of " + web_ui_dll + ".");

  if (file_description == "Telerik.Web.UI.Patch")
    has_a_patch = TRUE;
}

if (has_a_patch)
{
  # if it has *a* patch, we can't be sure that it is the correct patch
  # and we also can't tell if they have applied the mitigations to go
  # with the patch, so if we're paranoid, we add a note to the report
  # (done below) and if we're not paranoid, we audit out
  if (report_paranoia < 2) audit(AUDIT_PARANOID);
}

port = get_kb_item("SMB/transport");
if (empty_or_null(port))
  port = 445;

report = report_items_str(
  report_items:make_array(
    "Path", path,
    "Installed version", version,
    "Fixed version", "2017.2.711.0 or vendor supplied patch"
  ),
  ordered_fields:make_list("Path", "Installed version", "Fixed version")
);

if (has_a_patch)
  report += '\n\n' + "Although a patch has been applied, we aren't able to determine if this is the" +
            '\n' + "correct patch for these vulnerabilities. As per the vendor advisory, you must" +
            '\n' + "ensure that the patch you applied was downloaded after August 15th, 2017. You" +
            '\n' + "must also ensure the appropriate mitigations (disable file uploads or disable" +
            '\n' + "POST requests) have been applied as per the vendor advisory";

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

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl

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How to Run

Here is how to run the Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities 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 Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities plugin ID 107096.
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 telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - telerik_ui_for_aspnet_ajax_CVE-2017-11317.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 telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

103171, 103173

IAVA | Information Assurance Vulnerability Alert:

2018-A-0066-S

See also:

Similar and related Nessus plugins:

101159 - Telerik UI for ASP.NET AJAX Cryptographic Weakness
135970 - Telerik UI for ASP.NET AJAX RadAsyncUpload .NET Deserialization Vulnerability
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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file telerik_ui_for_aspnet_ajax_CVE-2017-11317.nasl version 1.7. For more plugins, visit the Nessus Plugin Library.

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Telerik UI for ASP.NET AJAX RadAsyncUpload Multiple Vulnerabilities - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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