Microsoft IIS HTTP Internal IP Disclosure - Metasploit
This page contains detailed information about how to use the auxiliary/scanner/http/iis_internal_ip metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Microsoft IIS HTTP Internal IP Disclosure
Module: auxiliary/scanner/http/iis_internal_ip
Source code: modules/auxiliary/scanner/http/iis_internal_ip.rb
Disclosure date: -
Last modification time: 2022-01-23 15:28:32 +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: CVE-2000-0649, CVE-2002-0422
Collect any leaked internal IPs by requesting commonly redirected locations from IIS. CVE-2000-0649 references IIS 5.1 (win2k, XP) and older. However, in newer servers such as IIS 7+, this occurs when the alternateHostName is not set or misconfigured.
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
This module is a scanner module, and is capable of testing against multiple hosts.
msf > use auxiliary/scanner/http/iis_internal_ip
msf auxiliary(iis_internal_ip) > show options
... show and set options ...
msf auxiliary(iis_internal_ip) > set RHOSTS ip-range
msf auxiliary(iis_internal_ip) > exploit
Other examples of setting the RHOSTS option:
Example 1:
msf auxiliary(iis_internal_ip) > set RHOSTS 192.168.1.3-192.168.1.200
Example 2:
msf auxiliary(iis_internal_ip) > set RHOSTS 192.168.1.1/24
Example 3:
msf auxiliary(iis_internal_ip) > set RHOSTS file:/tmp/ip_list.txt
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
IIS, under various conditions, may respond to a request for /
, /images
, or /default.htm
with HTTP/1.0
with a 300 HTTP response and a location header that contains an internal (192.x.x.x, 10.x.x.x, or 172.x.x.x)
IP address.
Verification Steps
- Install IIS with at least one IP address on a private LAN
- Start msfconsole
- Do:
use auxiliary/scanner/http/iis_internal_ip
- Do:
set rhosts [ip]
- Do:
run
- You should find the internal IP
Scenarios
IIS with SSL
msf5 > use auxiliary/scanner/http/iis_internal_ip
msf5 auxiliary(scanner/http/iis_internal_ip) > set ssl true
[!] Changing the SSL option's value may require changing RPORT!
ssl => true
msf5 auxiliary(scanner/http/iis_internal_ip) > set rport 443
rport => 443
msf5 auxiliary(scanner/http/iis_internal_ip) > set rhosts 2.2.2.2
rhosts => 2.2.2.2
msf5 auxiliary(scanner/http/iis_internal_ip) > set verbose true
verbose => true
rmsf5 auxiliary(scanner/http/iis_internal_ip) > run
[*] 2.2.2.2:443 - Requesting GET / HTTP/1.0
[+] Location Header: https://10.1.1.20/home
[+] Result for 2.2.2.2 found Internal IP: 10.1.1.20
[*] 2.2.2.2:443 - Requesting GET /images HTTP/1.0
[*] 2.2.2.2:443 - Requesting GET /default.htm HTTP/1.0
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
Go back to menu.
Msfconsole Usage
Here is how the scanner/http/iis_internal_ip auxiliary module looks in the msfconsole:
msf6 > use auxiliary/scanner/http/iis_internal_ip
msf6 auxiliary(scanner/http/iis_internal_ip) > show info
Name: Microsoft IIS HTTP Internal IP Disclosure
Module: auxiliary/scanner/http/iis_internal_ip
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
Heather Pilkington
Check supported:
No
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)
SSL false no Negotiate SSL/TLS for outgoing connections
THREADS 1 yes The number of concurrent threads (max one per host)
VHOST no HTTP server virtual host
Description:
Collect any leaked internal IPs by requesting commonly redirected
locations from IIS. CVE-2000-0649 references IIS 5.1 (win2k, XP) and
older. However, in newer servers such as IIS 7+, this occurs when
the alternateHostName is not set or misconfigured.
References:
https://nvd.nist.gov/vuln/detail/CVE-2000-0649
http://www.securityfocus.com/bid/1499
https://www.exploit-db.com/exploits/20096
https://support.microsoft.com/en-us/help/218180/internet-information-server-returns-ip-address-in-http-header-content
https://support.microsoft.com/en-us/help/967342/fix-the-internal-ip-address-of-an-iis-7-0-server-is-revealed-if-an-htt
https://techcommunity.microsoft.com/t5/iis-support-blog/iis-web-servers-running-in-windows-azure-may-reveal-their/ba-p/826500
Module Options
This is a complete list of options available in the scanner/http/iis_internal_ip auxiliary module:
msf6 auxiliary(scanner/http/iis_internal_ip) > show options
Module options (auxiliary/scanner/http/iis_internal_ip):
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)
SSL false no Negotiate SSL/TLS for outgoing connections
THREADS 1 yes The number of concurrent threads (max one per host)
VHOST no HTTP server virtual host
Advanced Options
Here is a complete list of advanced options supported by the scanner/http/iis_internal_ip auxiliary module:
msf6 auxiliary(scanner/http/iis_internal_ip) > show advanced
Module advanced options (auxiliary/scanner/http/iis_internal_ip):
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
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)
ShowProgress true yes Display progress messages during a scan
ShowProgressPercent 10 yes The interval in percent that progress should be shown
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 scanner/http/iis_internal_ip module can do:
msf6 auxiliary(scanner/http/iis_internal_ip) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the scanner/http/iis_internal_ip auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(scanner/http/iis_internal_ip) > 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.
no response for <TARGET_HOST>
Here is a relevant code snippet related to the "no response for <TARGET_HOST>" error message:
42: vprint_status("#{peer} - Requesting #{request}#{vhost_status}")
43: c = connect
44: res = c.send_recv("#{request}\r\n\r\n", 25)
45:
46: if res.nil?
47: print_error("no response for #{target_host}")
48:
49: elsif ((res.code > 300) && (res.code < 310))
50: intipregex = /(192\.168\.[0-9]{1,3}\.[0-9]{1,3}|10\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}|172\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})/i
51: print_good("Location Header: #{res.headers['Location']}")
52: result = res.headers['Location'].scan(intipregex).uniq.flatten
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Related Pull Requests
- #13579 Merged Pull Request: more iis internal ip info
- #13562 Merged Pull Request: iis_internal_ip docs and vprint_status
- #12689 Merged Pull Request: iis internal ip references
- #8888 Merged Pull Request: spelling/grammar fixes part 1
- #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
- #2525 Merged Pull Request: Change module boilerplate
References
- CVE-2000-0649
- BID-1499
- EDB-20096
- https://support.microsoft.com/en-us/help/218180/internet-information-server-returns-ip-address-in-http-header-content
- https://support.microsoft.com/en-us/help/967342/fix-the-internal-ip-address-of-an-iis-7-0-server-is-revealed-if-an-htt
- https://techcommunity.microsoft.com/t5/iis-support-blog/iis-web-servers-running-in-windows-azure-may-reveal-their/ba-p/826500
See Also
Check also the following modules related to this module:
- auxiliary/scanner/http/webdav_internal_ip
- auxiliary/scanner/http/iis_shortname_scanner
- auxiliary/admin/http/iis_auth_bypass
- auxiliary/dos/windows/ftp/iis_list_exhaustion
- exploit/windows/iis/iis_webdav_scstoragepathfromurl
- exploit/windows/iis/iis_webdav_upload_asp
- exploit/windows/iis/ms01_023_printer
- exploit/windows/iis/ms01_026_dbldecode
- exploit/windows/iis/ms01_033_idq
- exploit/windows/iis/ms02_018_htr
- exploit/windows/iis/ms02_065_msadc
- exploit/windows/iis/ms03_007_ntdll_webdav
- exploit/windows/iis/msadc
- auxiliary/dos/windows/ftp/iis75_ftpd_iac_bof
- auxiliary/scanner/http/owa_iis_internal_ip
- auxiliary/gather/external_ip
- exploit/windows/isapi/ms03_022_nsiislog_post
- auxiliary/scanner/ip/ipidseq
- auxiliary/scanner/http/hp_sitescope_getfileinternal_fileaccess
- auxiliary/scanner/http/exchange_web_server_pushsubscription
- auxiliary/scanner/http/f5_bigip_virtual_server
- auxiliary/scanner/http/ipboard_login
- auxiliary/scanner/http/limesurvey_zip_traversals
- auxiliary/scanner/http/rips_traversal
- auxiliary/scanner/http/smt_ipmi_49152_exposure
- auxiliary/scanner/http/smt_ipmi_cgi_scanner
- auxiliary/scanner/http/smt_ipmi_static_cert_scanner
- auxiliary/scanner/http/smt_ipmi_url_redirect_traversal
- auxiliary/scanner/http/vicidial_multiple_sqli
Authors
- Heather Pilkington
Version
This page has been produced using Metasploit Framework version 6.2.23-dev. For more modules, visit the Metasploit Module Library.
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