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rexec Authentication Scanner

This module will test an rexec service on a range of machines and report successful logins. NOTE: This module requires access to bind to privileged ports (below 1024).


Rank

  • Normal

Authors

  • jduck < jduck [at] metasploit.com >

References


Development


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Usage Information

$ msfconsole

                ##                          ###           ##    ##
 ##  ##  #### ###### ####  #####   #####    ##    ####        ######
####### ##  ##  ##  ##         ## ##  ##    ##   ##  ##   ###   ##
####### ######  ##  #####   ####  ##  ##    ##   ##  ##   ##    ##
## # ##     ##  ##  ##  ## ##      #####    ##   ##  ##   ##    ##
##   ##  #### ###   #####   #####     ##   ####   ####   #### ###
                                      ##

msf > use auxiliary/scanner/rservices/rexec_login
msf auxiliary(rexec_login) > set RHOSTS [TARGET HOST RANGE]
msf auxiliary(rexec_login) > run


Module Options

BLANK_PASSWORDS Try blank passwords for all users (default: true)
BRUTEFORCE_SPEED How fast to bruteforce, from 0 to 5 (default: 5)
ENABLE_STDERR Enables connecting the stderr port
PASSWORD A specific password to authenticate with
PASS_FILE File containing passwords, one per line
RHOSTS The target address range or CIDR identifier
RPORT The target port (default: 512)
STDERR_PORT The port to listen on for stderr
STOP_ON_SUCCESS Stop guessing when a credential works for a host
THREADS The number of concurrent threads (default: 1)
USERNAME A specific username to authenticate as
USERPASS_FILE File containing users and passwords separated by space, one pair per line
USER_AS_PASS Try the username as the password for all users (default: true)
USER_FILE File containing usernames, one per line
VERBOSE Whether to print output for all attempts (default: true)
AutoRunScript A script to run automatically on session creation.
CHOST The local client address
CPORT The local client port
ConnectTimeout Maximum number of seconds to establish a TCP connection
InitialAutoRunScript An initial script to run on session creation (before AutoRunScript)
MaxGuessesPerService Maximum number of credentials to try per service instance. If set to zero or a non-number, this option will not be used.
MaxGuessesPerUser 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 Maximum time in minutes to bruteforce the service instance. If set to zero or a non-number, this option will not be used.
Proxies Use a proxy chain
REMOVE_PASS_FILE Automatically delete the PASS_FILE on module completion
REMOVE_USERPASS_FILE Automatically delete the USERPASS_FILE on module completion
REMOVE_USER_FILE Automatically delete the USER_FILE on module completion
SSL Negotiate SSL for outgoing connections
SSLVersion Specify the version of SSL that should be used (accepted: SSL2, SSL3, TLS1)
ShowProgress Display progress messages during a scan
ShowProgressPercent The interval in percent that progress should be shown
WORKSPACE Specify the workspace for this module
TCP::max_send_size Maxiumum tcp segment size. (0 = disable)
TCP::send_delay Delays inserted before every send. (0 = disable)