Novell Client / Client 2 Multiple Vulnerabilities - Nessus

High Plugin ID: 69557

This page contains detailed information about the Novell Client / Client 2 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: 69557
Name: Novell Client / Client 2 Multiple Vulnerabilities
Filename: novell_client_priv_escalation2.nasl
Vulnerability Published: 2013-05-10
This Plugin Published: 2013-09-03
Last Modification Time: 2018-11-15
Plugin Version: 1.5
Plugin Type: local
Plugin Family: Windows
Dependencies: smb_enum_services.nasl, smb_hotfixes.nasl
Required KB Items [?]: SMB/Registry/Enumerated

Vulnerability Information

Severity: High
Vulnerability Published: 2013-05-10
Patch Published: 2013-05-13
CVE [?]: CVE-2013-3697, CVE-2013-3956
CPE [?]: cpe:/a:novell:client

Synopsis

The remote host has a client application installed that is affected by multiple vulnerabilities.

Description

The version of Novell Client or Novell Client 2 installed on the remote Windows host is potentially affected by the following vulnerabilities :

- An error exists related to 'nicm.sys' and handling '0x143b6b' IOCTL requests that could allow arbitrary code execution. (CVE-2013-3956)

- An integer overflow exists related to 'nwfs.sys' and handling '0x1439B' IOCTL requests that could allow arbitrary code execution. (CVE-2013-3697)

Solution

Apply the patch referenced in the vendor's advisory.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the Novell Client / Client 2 Multiple Vulnerabilities vulnerability:

Metasploit: exploit/windows/local/novell_client_nicm
[Novell Client 2 SP3 nicm.sys Local Privilege Escalation]
Exploit-DB: exploits/windows_x86/local/26452.rb
[EDB-26452: Novell Client 2 SP3 - 'nicm.sys' Local Privilege Escalation (Metasploit)]
Exploit-DB: exploits/windows/local/27191.py
[EDB-27191: Novell Client 2 SP3 - 'nicm.sys 3.1.11.0' Local Privilege Escalation]
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 V2 Vector [?]: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	6.0 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.0 (Medium)

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Plugin Source

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

include("compat.inc");

if (description)
{
  script_id(69557);
  script_version("1.5");
  script_cvs_date("Date: 2018/11/15 20:50:27");

  script_cve_id("CVE-2013-3956", "CVE-2013-3697");
  script_bugtraq_id(60202, 60203);
  script_xref(name:"EDB-ID", value:"26452");
  script_xref(name:"EDB-ID", value:"27191");

  script_name(english:"Novell Client / Client 2 Multiple Vulnerabilities");
  script_summary(english:"Checks version of acu.exe or nicm.sys");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a client application installed that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Novell Client or Novell Client 2 installed on the remote
Windows host is potentially affected by the following vulnerabilities :

  - An error exists related to 'nicm.sys' and handling
    '0x143b6b' IOCTL requests that could allow arbitrary
    code execution. (CVE-2013-3956)

  - An integer overflow exists related to 'nwfs.sys' and
    handling '0x1439B' IOCTL requests that could allow
    arbitrary code execution. (CVE-2013-3697)");
  script_set_attribute(attribute:"see_also", value:"https://support.microfocus.com/kb/doc.php?id=7012497");
  script_set_attribute(attribute:"solution", value:"Apply the patch referenced in the vendor's advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Novell Client 2 SP3 nicm.sys Local Privilege Escalation');
  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:"2013/05/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/03");

  script_set_attribute(attribute:"cpe", value:"cpe:/a:novell:client");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl", "smb_enum_services.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}

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

get_kb_item_or_exit("SMB/Registry/Enumerated");

# Unless we're being paranoid, check whether the software's installed.
if (report_paranoia < 2)
  get_kb_item_or_exit("SMB/Registry/HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/Novell Client for Windows/DisplayName");

name   = kb_smb_name();
port   = kb_smb_transport();
if (!get_port_state(port)) audit(AUDIT_PORT_CLOSED, port);
login  = kb_smb_login();
pass   = kb_smb_password();
domain = kb_smb_domain();

registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);

# Novell Client is installed - check if it's Client or Client 2 (newer)
key =  "SOFTWARE\Novell\Client\Version\ProductName";
name = get_registry_value(handle:hklm, item:key);
if (isnull(name))
  client2 = FALSE;
else
{
  client2 = TRUE;
  if ("Novell Client 2 SP2" >< name)
    sp = 2;
  if ("Novell Client 2 SP3" >< name)
    sp = 3;
}

key =  "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Novell Client for Windows\UninstallString";
path = get_registry_value(handle:hklm, item:key);
if (isnull(path))
{
  RegCloseKey(handle:hklm);
  close_registry();
  audit(AUDIT_NOT_INST, "Novell Client for Windows");
}

if (client2)
{
  # Clean up path
  matches = eregmatch(string:path, pattern:'^.* "([A-Za-z]:.*)\\\\ncsetup\\.dll" .*$');
  if (isnull(matches))
  {
    RegCloseKey(handle:hklm);
    close_registry();
    audit(AUDIT_UNINST, "Novell Client 2 for Windows");
  }
  path = matches[1];
}
else
{
  path = hotfix_get_systemroot();
  if (!path)
  {
    RegCloseKey(handle:hklm);
    close_registry();
    audit(AUDIT_FN_FAIL, 'hotfix_get_systemroot');
  }
}

RegCloseKey(handle:hklm);
close_registry(close:FALSE);

share = hotfix_path2share(path:path);
if (client2)
  exe = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:"\1\acu.exe", string:path);
else
  exe = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:"\1\system32\drivers\nicm.sys", string:path);

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

fh = CreateFile(
  file:exe,
  desired_access:GENERIC_READ,
  file_attributes:FILE_ATTRIBUTE_NORMAL,
  share_mode:FILE_SHARE_READ,
  create_disposition:OPEN_EXISTING
);
if (isnull(fh))
{
  NetUseDel();
  audit(AUDIT_UNINST, "Novell Client for Windows");
}

vuln = FALSE;
ver = GetFileVersion(handle:fh);
CloseFile(handle:fh);
NetUseDel();

if (isnull(ver))
  audit(AUDIT_VER_FAIL, exe);

version = join(ver, sep:'.');

# New Client 2
# Checking acu.exe for New Client
if (client2)
{
  if (sp == 2)
  {
    appname = 'Novell Client 2 SP2';
    fixed = '5.0.66.6187';
  }
  else if (sp == 3)
  {
    appname = 'Novell Client 2 SP3';
    fixed = '5.0.67.405';
  }
  if (ver_compare(ver:version, fix:fixed, strict:FALSE) < 0)
    vuln = TRUE;
}
# Original/old client
else
{
  appname = 'Novell Client';
  fixed = '3.0.0.9';
  if (ver_compare(ver:version, fix:fixed, strict:FALSE) < 0)
    vuln = TRUE;
}

if (vuln)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Application       : ' + appname +
      '\n  File              : ' + str_replace(string:share, find:"$", replace:":", count:1) + exe +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : ' + fixed +
      '\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
exit(0, appname + ", identified by the file " + str_replace(string:share, find:"$", replace:":", count:1) + exe + " having version " + version + ", is installed and 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/novell_client_priv_escalation2.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\novell_client_priv_escalation2.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/novell_client_priv_escalation2.nasl

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How to Run

Here is how to run the Novell Client / Client 2 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 Novell Client / Client 2 Multiple Vulnerabilities plugin ID 69557.
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 novell_client_priv_escalation2.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a novell_client_priv_escalation2.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - novell_client_priv_escalation2.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 novell_client_priv_escalation2.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

60202, 60203

See also:

Similar and related Nessus plugins:

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50695 - Novell GroupWise WebAccess Arbitrary File Download (local check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file novell_client_priv_escalation2.nasl version 1.5. For more plugins, visit the Nessus Plugin Library.

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Novell Client / Client 2 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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