MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) - Nessus

Critical Plugin ID: 49286

This page contains detailed information about the MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) 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: 49286
Name: MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check)
Filename: spoolsv_kb2347290.nasl
Vulnerability Published: 2010-09-14
This Plugin Published: 2010-09-20
Last Modification Time: 2020-08-05
Plugin Version: 1.25
Plugin Type: local
Plugin Family: Windows
Dependencies: None

Vulnerability Information

Severity: Critical
Vulnerability Published: 2010-09-14
Patch Published: 2010-09-14
CVE [?]: CVE-2010-2729
CPE [?]: cpe:/o:microsoft:windows
Exploited by Malware: True
In the News: True

Synopsis

Arbitrary code can be executed on the remote host due to a flaw in the Spooler service.

Description

The version of the Print Spooler service on the remote Windows host is affected by a service impersonation vulnerability that allows an unauthenticated, remote attacker to execute arbitrary code on a Windows XP system to escalate privileges on all other supported Windows systems.

EMERALDTHREAD is one of multiple Equation Group vulnerabilities and exploits disclosed on 2017/04/14 by a group known as the Shadow Brokers.

Solution

Microsoft has released a set of patches for Windows XP, 2003, Vista, 2008, 7, and 2008 R2.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) vulnerability:

Metasploit: exploit/windows/smb/ms10_061_spoolss
[MS10-061 Microsoft Print Spooler Service Impersonation Vulnerability]
Exploit-DB: exploits/windows/remote/16361.rb
[EDB-16361: Microsoft Windows - Print Spooler Service Impersonation (MS10-061) (Metasploit)]
GitHub: https://github.com/thalpius/Microsoft-PrintDemon-Vulnerability
[CVE-2010-2729]
Immunity Canvas: CANVAS

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-2010-2729
CVSS V2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C/E:H/RL:OF/RC:C

CVSS Base Score:	9.3 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.6
CVSS Temporal Score:	8.1 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.1 (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)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

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


include("compat.inc");


if (description)
{
  script_id(49286);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/05");

  script_cve_id("CVE-2010-2729");
  script_bugtraq_id(43073);
  script_xref(name:"IAVA", value:"2010-A-0124-S");
  script_xref(name:"MSFT", value:"MS10-061");
  script_xref(name:"MSKB", value:"2347290");

  script_name(english:"MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check)");
  script_summary(english:"Test vulnerability of Spoolsv.exe");

  script_set_attribute(attribute:"synopsis", value:
"Arbitrary code can be executed on the remote host due to a flaw in the
Spooler service.");
  script_set_attribute(attribute:"description", value:
"The version of the Print Spooler service on the remote Windows host is
affected by a service impersonation vulnerability that allows an
unauthenticated, remote attacker to execute arbitrary code on a
Windows XP system to escalate privileges on all other supported
Windows systems.

EMERALDTHREAD is one of multiple Equation Group vulnerabilities and
exploits disclosed on 2017/04/14 by a group known as the Shadow
Brokers.");
  # https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-061
  script_set_attribute(attribute:"see_also", value:"https://www.nessus.org/u?32e6c705");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2.");
  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: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-2010-2729");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'MS10-061 Microsoft Print Spooler Service Impersonation Vulnerability');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/09/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/09/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/09/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"Windows");
  script_copyright(english:"This script is Copyright (C) 2010-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_require_ports(139, 445);

  exit(0);
}

include("smb_func.inc");
include("smb_hotfixes.inc");
include("byte_func.inc");

set_byte_order(BYTE_ORDER_LITTLE_ENDIAN);

os = get_kb_item ("Host/OS/smb") ;
if ( ! os || "Windows 5.1" >!< os ) exit(0, "The OS is not Windows XP.");

# create a comformant and varying marshalled string
function ndr_string(string)
{
  if(isnull(string))
  {
    return NULL;
  }
  return  mkdword(strlen(string) + 1) + # max count
          mkdword(0) +                  # offset
          mkdword(strlen(string) + 1) + # actual count
          cstring(string:string);       # the string in unicode
}

function get_rpc_return_status(data)
{
  if(strlen(data) >= 4)
    return get_dword (blob:data, pos:(strlen(data)-4));
  else
    return NULL;
}

PRINTER_ENUM_LOCAL   = 0x00000002;
PRINTER_ENUM_SHARED  = 0x00000020;
PRINTER_ENUM_NETWORK = 0x00000040;
PRINTER_ENUM_NAME    = 0x00000008;
function enum_printer_req()
{

	return raw_dword(d:(PRINTER_ENUM_LOCAL | PRINTER_ENUM_SHARED)) +
	raw_dword(d:0) +
	raw_dword(d:1) +
	raw_dword(d:0x2000c) +
	raw_dword(d:_FCT_ANON_ARGS[0]) +
	crap(length:_FCT_ANON_ARGS[0], data:'\x00') +
	raw_dword(d:_FCT_ANON_ARGS[0]);
}


function get_printers(fid)
{
  local_var i, res, status, needed_sz, bufsz, nprinters, printer, printers;
  local_var name_offset,entry_offset, entry_size, STRUCT_PRINT_INFO1;

  res = dce_rpc_pipe_request(fid:fid, code:0x00, data:enum_printer_req(0));
  if(isnull(res) || (strlen(res) < 4))
  {
    return NULL;
  }
  res = dce_rpc_parse_response(data:res);

  status = get_rpc_return_status(data:res);
  if(status != ERROR_INSUFFICIENT_BUFFER)
  {
    return NULL;
  }

  needed_sz = get_dword(blob:res, pos:8);

  if(!needed_sz || (needed_sz > 1024 * 1024))
  {
    return NULL;
  }

  res = dce_rpc_pipe_request(fid:fid, code:0x00, data:enum_printer_req(needed_sz));

  if(isnull(res))
  {
    return NULL;
  }

  res = dce_rpc_parse_response(data:res);
  status = get_rpc_return_status(data:res);
  if(status != ERROR_SUCCESS)
  {
    return NULL;
  }

  bufsz = get_dword(blob:res, pos:4);
  nprinters = get_dword(blob:res, pos:(strlen(res)-4 -4));

  # sanity check
  if(nprinters * 16 > bufsz)  # each printer has 16-byte memta struct
  {
    return NULL;
  }

  STRUCT_PRINT_INFO1 = substr(res, 8, 8 + needed_sz);

  entry_offset = 0;
  entry_size   = 16;
  for (i = 0; i < nprinters; i++)
  {
    name_offset = get_dword(blob:STRUCT_PRINT_INFO1, pos:entry_offset + 8);
    printer = get_string(blob:STRUCT_PRINT_INFO1, pos: entry_offset + name_offset, _type:1);
    entry_offset += entry_size;
    printers[i] = printer;
  }

  return printers;
}

function open_printer(fid, printer)
{
  local_var client, user, data, res, status, padlen;

  client = kb_smb_name();
  user = "nessus";
  data =  mkdword(0x00020000) +             # printe name ref id
          ndr_string(string:printer);
  padlen = strlen(data) % 4;
  data += mkpad(padlen) +                   # params are 32bit-aligned
          mkdword(0)  +                     # printer datatype ref id
          mkdword(0)  +                     # device mode ctr size
          mkdword(0)  +                     # device mode
          mkdword(0)  +                     # access right
          mkdword(1)  +                     # info level
          mkdword(1)  +                     # user level container ref id
          mkdword(0x00020004) +             # info level
          mkdword(0x1c) +                   # size
          mkdword(0x00020008) +             # client ref id
          mkdword(0x0002000c) +             # user ref id
          mkdword(6002) +                   # build
          mkdword(3) + mkdword(0) +         # major and minor
          mkdword(0) +                      # processor
          ndr_string(string:client);        # client name
  padlen = strlen(data) % 4;
  data += mkpad(padlen) +
          ndr_string(string:user);          # user name

  res = dce_rpc_pipe_request (fid:fid, code:69, data:data);
  if (isnull(res))
  {
    return NULL;
  }
  res = dce_rpc_parse_response (fid:fid, data:res);
  status = get_rpc_return_status(data:res);
  if(status != ERROR_SUCCESS || strlen(res) != 0x18)
  {
    return NULL;
  }

  return substr(res,0, 0x13);
}

function send_print_job(fid, hprinter, outfile)
{
  local_var res, data,ret;

  data = hprinter +
         mkdword(1) +                   # doc info container info level
         mkdword(1) +                   # doc info level
         mkdword(0x00020000) +          # Doc info ref id
         mkdword(0) +                   # doc name ref id, default doc name
         mkdword(0x20000001) +          # output file ref id
         mkdword(0)          +          # data type ref id
         ndr_string(string:outfile);    # output file name

  res = dce_rpc_pipe_request (fid:fid, code:17, data:data);

  if(isnull(res))
  {
    return NULL;
  }

  res = dce_rpc_parse_response (fid:fid, data:res);

  if(strlen(res) < 8)
  {
    return NULL;
  }
  ret['job_id'] = get_dword(blob:res, pos:(strlen(res)-4 -4));
  ret['status'] = get_rpc_return_status(data:res);

  return ret;
}

JOB_CONTROL_CANCEL  = 0x00000003;
function cancel_print_job(fid, hprinter, jid)
{
  local_var res, data;

  data = hprinter       +
         mkdword(jid)   +
         mkdword(0)     +
         mkdword(JOB_CONTROL_CANCEL);


  res = dce_rpc_pipe_request (fid:fid, code:2, data:data);

  if(isnull(res))
  {
    return NULL;
  }

  res = dce_rpc_parse_response (fid:fid, data:res);

  return get_rpc_return_status(data:res);
}

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

if ( ! get_port_state(port) ) exit(0, "Port "+port+" is not open.");
soc = open_sock_tcp(port);
if (!soc) exit(1, "Failed to open a socket on port "+port+".");


name	= kb_smb_name();
port    =  kb_smb_transport();
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();
session_init(socket:soc, hostname:name);

if(isnull(login)) login = "guest";

if (! NetUseAdd(login:login,password:pass,share:"IPC$"))
{
  close(soc);
  exit(1, "Can't connect to IPC$ share.");
}

# open spooler pipe
fid = bind_pipe (pipe:"\spoolss", uuid:"12345678-1234-abcd-ef00-0123456789ab", vers:1);
if (isnull (fid))
{
  NetUseDel(close:TRUE);
  exit(1,"Failed to connect to spoolss pipe.");
}

# enum printers
printers = get_printers(fid:fid);
if(! printers)
{
  NetUseDel(close:TRUE);
  exit(1,"No shared printers found.");
}

# open a printer
foreach printer (printers)
{
  hprinter = open_printer(fid:fid, printer:printer);
  if(hprinter) break;
}

if( isnull(hprinter))
{
  NetUseDel(close:TRUE);
  exit(1,"Failed to open a printer.");
}

# send a job with an invalid output file name
ret = send_print_job(fid:fid,hprinter:hprinter, outfile:":");
if( isnull(ret))
{
  NetUseDel(close:TRUE);
  exit(1, "send_print_job() failed.");
}

status = ret['status'];
job_id = ret['job_id'];

if(status == ERROR_SUCCESS)
{

  # a print job was queued, so need to cancel it
  cancel_attempts = 0;
  repeat
  {
    status = cancel_print_job(fid:fid, hprinter: hprinter, jid: job_id);
    cancel_attempts++;
  }until(status == ERROR_SUCCESS || cancel_attempts > 3);

  NetUseDel(close:TRUE);
  exit(0, "The host is not affected.");
}
else
{
  NetUseDel(close:TRUE);
  if(status == ERROR_PRINT_CANCELLED)
  {
    security_hole(port:port);
  }
  else
  {
    exit(1,"Unexpected StartDocPrinter() return status (" + status + ").");
  }
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/spoolsv_kb2347290.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\spoolsv_kb2347290.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/spoolsv_kb2347290.nasl

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How to Run

Here is how to run the MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) 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 MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) plugin ID 49286.
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 spoolsv_kb2347290.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a spoolsv_kb2347290.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - spoolsv_kb2347290.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 spoolsv_kb2347290.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

43073

MSKB | Microsoft Knowledge Base:

2347290

MSFT | Microsoft Security Bulletin:

MS10-061

IAVA | Information Assurance Vulnerability Alert:

2010-A-0124-S

See also:

Similar and related Nessus plugins:

49219 - MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD)
49806 - MS10-070: Vulnerability in ASP.NET Could Allow Information Disclosure (2418042) (uncredentialed check)
47556 - MS10-012: Vulnerabilities in SMB Could Allow Remote Code Execution (971468) (uncredentialed check)
46017 - MS10-025: Vulnerability in Microsoft Windows Media Services Could Allow Remote Code Execution (980858) (uncredentialed check)
48405 - MS10-054: Vulnerabilities in SMB Server Could Allow Remote Code Execution (982214) (remote check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file spoolsv_kb2347290.nasl version 1.25. For more plugins, visit the Nessus Plugin Library.

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MS10-061: Vulnerability in Print Spooler Service Could Allow Remote Code Execution (2347290) (EMERALDTHREAD) (uncredentialed check) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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