Microsoft SQL Server SQLi Escalate Execute AS - Metasploit
This page contains detailed information about how to use the auxiliary/admin/mssql/mssql_escalate_execute_as_sqli metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Microsoft SQL Server SQLi Escalate Execute AS
Module: auxiliary/admin/mssql/mssql_escalate_execute_as_sqli
Source code: modules/auxiliary/admin/mssql/mssql_escalate_execute_as_sqli.rb
Disclosure date: -
Last modification time: 2020-09-22 02:56:51 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: -
This module can be used escalate privileges if the IMPERSONATION privilege has been assigned to the user via error based SQL injection. In most cases, this results in additional data access, but in some cases it can be used to gain sysadmin privileges. The syntax for injection URLs is: /testing.asp?id=1+and+1=[SQLi];--
Module Ranking and Traits
Module Ranking:
- normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.
Basic Usage
msf > use auxiliary/admin/mssql/mssql_escalate_execute_as_sqli
msf auxiliary(mssql_escalate_execute_as_sqli) > show targets
... a list of targets ...
msf auxiliary(mssql_escalate_execute_as_sqli) > set TARGET target-id
msf auxiliary(mssql_escalate_execute_as_sqli) > show options
... show and set options ...
msf auxiliary(mssql_escalate_execute_as_sqli) > 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 admin/mssql/mssql_escalate_execute_as_sqli auxiliary module looks in the msfconsole:
msf6 > use auxiliary/admin/mssql/mssql_escalate_execute_as_sqli
msf6 auxiliary(admin/mssql/mssql_escalate_execute_as_sqli) > show info
Name: Microsoft SQL Server SQLi Escalate Execute AS
Module: auxiliary/admin/mssql/mssql_escalate_execute_as_sqli
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
nullbind <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
COOKIE no Cookie value
DATA no POST data, if necessary, with [SQLi] indicating the injection
GET_PATH / yes The complete path with [SQLi] indicating the injection
METHOD GET yes GET or POST
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
VHOST no HTTP server virtual host
Description:
This module can be used escalate privileges if the IMPERSONATION
privilege has been assigned to the user via error based SQL
injection. In most cases, this results in additional data access,
but in some cases it can be used to gain sysadmin privileges. The
syntax for injection URLs is: /testing.asp?id=1+and+1=[SQLi];--
References:
http://msdn.microsoft.com/en-us/library/ms178640.aspx
Module Options
This is a complete list of options available in the admin/mssql/mssql_escalate_execute_as_sqli auxiliary module:
msf6 auxiliary(admin/mssql/mssql_escalate_execute_as_sqli) > show options
Module options (auxiliary/admin/mssql/mssql_escalate_execute_as_sqli):
Name Current Setting Required Description
---- --------------- -------- -----------
COOKIE no Cookie value
DATA no POST data, if necessary, with [SQLi] indicating the injection
GET_PATH / yes The complete path with [SQLi] indicating the injection
METHOD GET yes GET or POST
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
VHOST no HTTP server virtual host
Advanced Options
Here is a complete list of advanced options supported by the admin/mssql/mssql_escalate_execute_as_sqli auxiliary module:
msf6 auxiliary(admin/mssql/mssql_escalate_execute_as_sqli) > show advanced
Module advanced options (auxiliary/admin/mssql/mssql_escalate_execute_as_sqli):
Name Current Setting Required Description
---- --------------- -------- -----------
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
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
HEX2BINARY /opt/metasploit-framework/embedded/framework/data/exploits/mssql/h2b no The path to the hex2binary script on the disk
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
Auxiliary Actions
This is a list of all auxiliary actions that the admin/mssql/mssql_escalate_execute_as_sqli module can do:
msf6 auxiliary(admin/mssql/mssql_escalate_execute_as_sqli) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the admin/mssql/mssql_escalate_execute_as_sqli auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(admin/mssql/mssql_escalate_execute_as_sqli) > 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:
- Unable to grab user name...
- Couldn't retrieve user status, aborting...
- <DB_USER> is already a sysadmin, no escalation needed.
- <DB_USER> is NOT a sysadmin, let's try to escalate privileges.
- Sorry, the current user doesnt have permissions to impersonate anyone.
- Sorry, none of the users that can be impersonated are sysadmins.
- Fail buckets, something went wrong.
- <IMP_USER> is NOT a sysadmin
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.
Unable to grab user name...
Here is a relevant code snippet related to the "Unable to grab user name..." error message:
26: def run
27: # Get the database user name
28: print_status("Grabbing the database user name...")
29: db_user = get_username
30: if db_user.nil?
31: print_error("Unable to grab user name...")
32: return
33: else
34: print_good("Database user: #{db_user}")
35: end
36:
Couldn't retrieve user status, aborting...
Here is a relevant code snippet related to the "Couldn't retrieve user status, aborting..." error message:
37: # Grab sysadmin status
38: print_status("Checking if #{db_user} is already a sysadmin...")
39: admin_status = check_sysadmin
40:
41: if admin_status.nil?
42: print_error("Couldn't retrieve user status, aborting...")
43: return
44: elsif admin_status == '1'
45: print_error("#{db_user} is already a sysadmin, no escalation needed.")
46: return
47: else
<DB_USER> is already a sysadmin, no escalation needed.
Here is a relevant code snippet related to the "<DB_USER> is already a sysadmin, no escalation needed." error message:
40:
41: if admin_status.nil?
42: print_error("Couldn't retrieve user status, aborting...")
43: return
44: elsif admin_status == '1'
45: print_error("#{db_user} is already a sysadmin, no escalation needed.")
46: return
47: else
48: print_status("#{db_user} is NOT a sysadmin, let's try to escalate privileges.")
49: end
50:
<DB_USER> is NOT a sysadmin, let's try to escalate privileges.
Here is a relevant code snippet related to the "<DB_USER> is NOT a sysadmin, let's try to escalate privileges." error message:
43: return
44: elsif admin_status == '1'
45: print_error("#{db_user} is already a sysadmin, no escalation needed.")
46: return
47: else
48: print_status("#{db_user} is NOT a sysadmin, let's try to escalate privileges.")
49: end
50:
51: # Get list of users that can be impersonated
52: print_status("Enumerating a list of users that can be impersonated...")
53: imp_user_list = check_imp_users
Sorry, the current user doesnt have permissions to impersonate anyone.
Here is a relevant code snippet related to the "Sorry, the current user doesnt have permissions to impersonate anyone." error message:
50:
51: # Get list of users that can be impersonated
52: print_status("Enumerating a list of users that can be impersonated...")
53: imp_user_list = check_imp_users
54: if imp_user_list.nil? || imp_user_list.empty?
55: print_error("Sorry, the current user doesnt have permissions to impersonate anyone.")
56: return
57: else
58: # Display list of users that can be impersonated
59: print_good("#{imp_user_list.length} users can be impersonated:")
60: imp_user_list.each do |dbuser|
Sorry, none of the users that can be impersonated are sysadmins.
Here is a relevant code snippet related to the "Sorry, none of the users that can be impersonated are sysadmins." error message:
64:
65: # Check if any of the users that can be impersonated are sysadmins
66: print_status("Checking if any of them are sysadmins...")
67: imp_user_sysadmin = check_imp_sysadmin(imp_user_list)
68: if imp_user_sysadmin.nil?
69: print_error("Sorry, none of the users that can be impersonated are sysadmins.")
70: return
71: end
72:
73: # Attempt to escalate to sysadmin
74: print_status("Attempting to impersonate #{imp_user_sysadmin}...")
Fail buckets, something went wrong.
Here is a relevant code snippet related to the "Fail buckets, something went wrong." error message:
76:
77: admin_status = check_sysadmin
78: if admin_status && admin_status == '1'
79: print_good("Success! #{db_user} is now a sysadmin!")
80: else
81: print_error("Fail buckets, something went wrong.")
82: end
83: end
84:
85: def get_username
86: # Setup query to check for database username
<IMP_USER> is NOT a sysadmin
Here is a relevant code snippet related to the "<IMP_USER> is NOT a sysadmin" error message:
177: # check if user is a sysadmin
178: if parsed_result && parsed_result[0] == '1'
179: print_good(" #{imp_user} is a sysadmin!")
180: return imp_user
181: else
182: print_status(" #{imp_user} is NOT a sysadmin")
183: end
184: end
185:
186: nil
187: end
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Related Pull Requests
- #14202 Merged Pull Request: Implement the zeitwerk autoloader within lib/msf/core
- #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
- #6655 Merged Pull Request: use MetasploitModule as a class name
- #6648 Merged Pull Request: Change metasploit class names
- #6526 Merged Pull Request: Peers for the peer god
- #4932 Merged Pull Request: Fixed hardcoded username in mssql_escalate_execute_as_sqli module
- #4373 Merged Pull Request: fix invalid URI scheme
- #4325 Merged Pull Request: Minor title change for mssql_enum_domain_accounts_sqli
- #4201 Merged Pull Request: Minor typos and grammar fixes (release fixup)
References
See Also
Check also the following modules related to this module:
- auxiliary/admin/mssql/mssql_enum
- auxiliary/admin/mssql/mssql_enum_domain_accounts
- auxiliary/admin/mssql/mssql_enum_domain_accounts_sqli
- auxiliary/admin/mssql/mssql_enum_sql_logins
- auxiliary/admin/mssql/mssql_escalate_dbowner
- auxiliary/admin/mssql/mssql_escalate_dbowner_sqli
- auxiliary/admin/mssql/mssql_escalate_execute_as
- auxiliary/admin/mssql/mssql_exec
- auxiliary/admin/mssql/mssql_findandsampledata
- auxiliary/admin/mssql/mssql_idf
- auxiliary/admin/mssql/mssql_ntlm_stealer
- auxiliary/admin/mssql/mssql_ntlm_stealer_sqli
- auxiliary/admin/mssql/mssql_sql
- auxiliary/admin/mssql/mssql_sql_file
- auxiliary/scanner/mssql/mssql_hashdump
- auxiliary/scanner/mssql/mssql_login
- auxiliary/scanner/mssql/mssql_ping
- auxiliary/scanner/mssql/mssql_schemadump
- exploit/windows/mssql/mssql_clr_payload
- exploit/windows/mssql/mssql_linkcrawler
- exploit/windows/mssql/mssql_payload
- exploit/windows/mssql/mssql_payload_sqli
- post/windows/gather/credentials/mssql_local_hashdump
- post/windows/manage/mssql_local_auth_bypass
- exploit/windows/mssql/lyris_listmanager_weak_pass
- exploit/windows/mssql/ms02_039_slammer
- exploit/windows/mssql/ms02_056_hello
- exploit/windows/mssql/ms09_004_sp_replwritetovarbin
- exploit/windows/mssql/ms09_004_sp_replwritetovarbin_sqli
- auxiliary/server/capture/mssql
- payload/osx/armle/execute/bind_tcp
- payload/osx/armle/execute/reverse_tcp
- auxiliary/admin/http/typo3_news_module_sqli
- auxiliary/admin/http/wp_google_maps_sqli
- auxiliary/admin/scada/advantech_webaccess_dbvisitor_sqli
Authors
- nullbind <scott.sutherland[at]netspi.com>
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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